/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=NARROWEST --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/Problem01_label03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 05:58:44,195 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 05:58:44,198 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 05:58:44,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 05:58:44,225 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 05:58:44,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 05:58:44,228 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 05:58:44,230 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 05:58:44,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 05:58:44,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 05:58:44,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 05:58:44,235 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 05:58:44,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 05:58:44,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 05:58:44,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 05:58:44,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 05:58:44,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 05:58:44,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 05:58:44,243 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 05:58:44,245 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 05:58:44,247 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 05:58:44,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 05:58:44,250 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 05:58:44,251 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 05:58:44,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 05:58:44,254 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 05:58:44,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 05:58:44,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 05:58:44,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 05:58:44,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 05:58:44,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 05:58:44,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 05:58:44,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 05:58:44,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 05:58:44,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 05:58:44,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 05:58:44,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 05:58:44,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 05:58:44,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 05:58:44,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 05:58:44,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 05:58:44,265 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 [2020-10-13 05:58:44,289 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 05:58:44,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 05:58:44,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 05:58:44,292 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 05:58:44,292 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 05:58:44,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 05:58:44,292 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 05:58:44,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 05:58:44,293 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 05:58:44,293 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 05:58:44,293 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 05:58:44,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 05:58:44,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 05:58:44,294 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 05:58:44,294 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 05:58:44,294 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 05:58:44,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 05:58:44,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 05:58:44,295 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 05:58:44,295 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 05:58:44,295 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 05:58:44,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 05:58:44,296 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 05:58:44,296 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 05:58:44,296 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 05:58:44,296 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 05:58:44,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 05:58:44,297 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 05:58:44,297 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 05:58:44,297 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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;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=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 05:58:44,599 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 05:58:44,624 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 05:58:44,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 05:58:44,632 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 05:58:44,634 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 05:58:44,635 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label03.c [2020-10-13 05:58:44,688 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d52a711bb/ade2cf3367a74e029a1061fc268260fd/FLAG8e7aa7e2f [2020-10-13 05:58:45,257 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 05:58:45,258 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label03.c [2020-10-13 05:58:45,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d52a711bb/ade2cf3367a74e029a1061fc268260fd/FLAG8e7aa7e2f [2020-10-13 05:58:45,506 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d52a711bb/ade2cf3367a74e029a1061fc268260fd [2020-10-13 05:58:45,517 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 05:58:45,519 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 05:58:45,520 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 05:58:45,520 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 05:58:45,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 05:58:45,525 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:58:45" (1/1) ... [2020-10-13 05:58:45,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@af20ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:45, skipping insertion in model container [2020-10-13 05:58:45,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 05:58:45" (1/1) ... [2020-10-13 05:58:45,537 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 05:58:45,584 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 05:58:46,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:58:46,086 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 05:58:46,246 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 05:58:46,262 INFO L208 MainTranslator]: Completed translation [2020-10-13 05:58:46,263 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:46 WrapperNode [2020-10-13 05:58:46,263 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 05:58:46,264 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 05:58:46,264 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 05:58:46,264 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 05:58:46,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:46" (1/1) ... [2020-10-13 05:58:46,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:46" (1/1) ... [2020-10-13 05:58:46,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:46" (1/1) ... [2020-10-13 05:58:46,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:46" (1/1) ... [2020-10-13 05:58:46,339 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:46" (1/1) ... [2020-10-13 05:58:46,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:46" (1/1) ... [2020-10-13 05:58:46,368 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:46" (1/1) ... [2020-10-13 05:58:46,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 05:58:46,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 05:58:46,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 05:58:46,380 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 05:58:46,381 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:46" (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 [2020-10-13 05:58:46,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 05:58:46,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 05:58:46,463 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 05:58:46,463 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 05:58:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 05:58:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 05:58:46,463 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 05:58:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 05:58:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 05:58:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 05:58:46,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 05:58:47,688 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 05:58:47,689 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 05:58:47,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:58:47 BoogieIcfgContainer [2020-10-13 05:58:47,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 05:58:47,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 05:58:47,697 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 05:58:47,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 05:58:47,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 05:58:45" (1/3) ... [2020-10-13 05:58:47,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e3e4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:58:47, skipping insertion in model container [2020-10-13 05:58:47,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 05:58:46" (2/3) ... [2020-10-13 05:58:47,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e3e4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 05:58:47, skipping insertion in model container [2020-10-13 05:58:47,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 05:58:47" (3/3) ... [2020-10-13 05:58:47,705 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label03.c [2020-10-13 05:58:47,716 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 05:58:47,725 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 05:58:47,739 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 05:58:47,767 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 05:58:47,767 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 05:58:47,768 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 05:58:47,768 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 05:58:47,768 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 05:58:47,768 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 05:58:47,768 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 05:58:47,768 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 05:58:47,796 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 05:58:47,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-13 05:58:47,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:58:47,823 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:58:47,824 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:58:47,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:58:47,829 INFO L82 PathProgramCache]: Analyzing trace with hash 2067101231, now seen corresponding path program 1 times [2020-10-13 05:58:47,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:58:47,836 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [886534896] [2020-10-13 05:58:47,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:58:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:58:48,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:58:48,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:58:49,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:58:49,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 05:58:49,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 05:58:49,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1856 [2020-10-13 05:58:49,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:58:49,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 05:58:49,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 05:58:49,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 05:58:49,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 05:58:50,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:58:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:58:50,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:58:50,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:58:50,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:58:50,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:58:50,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 05:58:50,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:58:50,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:58:50,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:58:50,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 05:58:50,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:58:51,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:58:51,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [886534896] [2020-10-13 05:58:51,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 05:58:51,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 05:58:51,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476185849] [2020-10-13 05:58:51,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:58:51,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:58:51,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:58:51,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:58:51,064 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-13 05:58:51,302 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-10-13 05:58:51,539 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-13 05:58:51,723 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2020-10-13 05:58:51,934 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 05:58:52,140 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 05:58:52,385 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-13 05:58:52,744 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2020-10-13 05:58:53,214 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2020-10-13 05:58:53,542 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2020-10-13 05:58:54,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:58:54,470 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 05:58:54,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 05:58:54,475 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 135 [2020-10-13 05:58:54,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:58:54,509 INFO L225 Difference]: With dead ends: 474 [2020-10-13 05:58:54,510 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 05:58:54,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=138, Invalid=324, Unknown=0, NotChecked=0, Total=462 [2020-10-13 05:58:54,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 05:58:54,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 05:58:54,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 05:58:54,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 05:58:54,627 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 135 [2020-10-13 05:58:54,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:58:54,627 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 05:58:54,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:58:54,627 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 05:58:54,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-13 05:58:54,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:58:54,632 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:58:54,632 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 05:58:54,632 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:58:54,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:58:54,633 INFO L82 PathProgramCache]: Analyzing trace with hash -368744716, now seen corresponding path program 1 times [2020-10-13 05:58:54,633 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:58:54,633 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [440506918] [2020-10-13 05:58:54,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:58:54,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:58:54,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:58:54,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:58:55,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:58:56,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:58:56,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 05:58:56,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:58:56,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1899 [2020-10-13 05:58:56,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:58:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:58:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 05:58:56,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 05:58:56,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:58:56,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:58:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:58:57,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:58:57,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:58:57,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:58:57,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:58:57,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 05:58:57,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:58:57,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:58:57,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:58:57,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:58:57,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:58:57,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:58:57,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:58:57,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:58:57,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:58:57,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:58:57,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:58:57,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 05:58:57,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:58:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:58:57,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:58:57,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 05:58:57,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:58:57,215 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:58:57,215 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [440506918] [2020-10-13 05:58:57,215 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:58:57,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:58:57,216 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430024681] [2020-10-13 05:58:57,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:58:57,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:58:57,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:58:57,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:58:57,219 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 05:58:57,990 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 05:58:58,710 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 05:58:59,033 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 05:58:59,469 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 05:58:59,663 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 05:59:00,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:00,251 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 05:59:00,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 05:59:00,254 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 143 [2020-10-13 05:59:00,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:00,263 INFO L225 Difference]: With dead ends: 433 [2020-10-13 05:59:00,263 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 05:59:00,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 05:59:00,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 05:59:00,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 05:59:00,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 05:59:00,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 05:59:00,309 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 143 [2020-10-13 05:59:00,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:00,312 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 05:59:00,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:00,312 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 05:59:00,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-13 05:59:00,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:00,320 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:00,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 05:59:00,324 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:00,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:00,324 INFO L82 PathProgramCache]: Analyzing trace with hash 417446198, now seen corresponding path program 1 times [2020-10-13 05:59:00,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:00,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520591919] [2020-10-13 05:59:00,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:00,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:00,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:00,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:00,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:01,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:01,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-13 05:59:01,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:59:01,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 664 [2020-10-13 05:59:01,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:01,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 05:59:01,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 05:59:01,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-13 05:59:01,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:01,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:01,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:01,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:01,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:01,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:01,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:01,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:59:01,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:01,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:01,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:01,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:01,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:01,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:01,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:01,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 05:59:01,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:01,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 05:59:01,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:01,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:01,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:01,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 05:59:01,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:01,374 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:01,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520591919] [2020-10-13 05:59:01,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:01,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 05:59:01,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613808169] [2020-10-13 05:59:01,376 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 05:59:01,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:01,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 05:59:01,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 05:59:01,377 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 05:59:02,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:02,437 INFO L93 Difference]: Finished difference Result 587 states and 809 transitions. [2020-10-13 05:59:02,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 05:59:02,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-10-13 05:59:02,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:02,442 INFO L225 Difference]: With dead ends: 587 [2020-10-13 05:59:02,442 INFO L226 Difference]: Without dead ends: 278 [2020-10-13 05:59:02,444 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 05:59:02,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-10-13 05:59:02,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 276. [2020-10-13 05:59:02,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 05:59:02,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 330 transitions. [2020-10-13 05:59:02,462 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 330 transitions. Word has length 146 [2020-10-13 05:59:02,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:02,462 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 330 transitions. [2020-10-13 05:59:02,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 05:59:02,463 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 330 transitions. [2020-10-13 05:59:02,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-13 05:59:02,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:02,466 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:02,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 05:59:02,466 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:02,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:02,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1409859250, now seen corresponding path program 1 times [2020-10-13 05:59:02,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:02,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052231062] [2020-10-13 05:59:02,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:02,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:02,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:03,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:04,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:04,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-13 05:59:04,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:59:04,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2142 [2020-10-13 05:59:04,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 05:59:04,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 05:59:04,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:05,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:05,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:05,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:05,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:05,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:05,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:05,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:59:05,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:05,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:05,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:05,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:05,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:05,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:05,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 05:59:05,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:05,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 05:59:05,252 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:05,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:05,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 05:59:05,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:05,529 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:05,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052231062] [2020-10-13 05:59:05,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:05,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:59:05,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254026108] [2020-10-13 05:59:05,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:59:05,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:05,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:59:05,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:59:05,534 INFO L87 Difference]: Start difference. First operand 276 states and 330 transitions. Second operand 13 states. [2020-10-13 05:59:06,147 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-10-13 05:59:06,308 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-13 05:59:06,792 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 05:59:07,195 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 05:59:07,447 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 05:59:07,670 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 05:59:08,022 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 05:59:08,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:08,491 INFO L93 Difference]: Finished difference Result 552 states and 695 transitions. [2020-10-13 05:59:08,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 05:59:08,492 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 176 [2020-10-13 05:59:08,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:08,496 INFO L225 Difference]: With dead ends: 552 [2020-10-13 05:59:08,496 INFO L226 Difference]: Without dead ends: 325 [2020-10-13 05:59:08,498 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 05:59:08,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-13 05:59:08,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 319. [2020-10-13 05:59:08,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-13 05:59:08,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 378 transitions. [2020-10-13 05:59:08,516 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 378 transitions. Word has length 176 [2020-10-13 05:59:08,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:08,516 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 378 transitions. [2020-10-13 05:59:08,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:08,517 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 378 transitions. [2020-10-13 05:59:08,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-10-13 05:59:08,519 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:08,520 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:08,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 05:59:08,520 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:08,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:08,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1897390707, now seen corresponding path program 1 times [2020-10-13 05:59:08,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:08,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1209339758] [2020-10-13 05:59:08,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:08,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:08,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:08,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:08,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:09,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:10,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:12,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:12,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-13 05:59:12,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 05:59:12,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4104 [2020-10-13 05:59:12,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:12,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:12,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 05:59:12,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 05:59:12,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:13,412 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2020-10-13 05:59:13,675 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 53 [2020-10-13 05:59:13,920 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 50 [2020-10-13 05:59:14,121 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 46 [2020-10-13 05:59:14,320 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 42 [2020-10-13 05:59:14,514 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 36 [2020-10-13 05:59:14,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:14,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:14,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:14,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:14,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:14,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:59:14,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:14,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:14,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:14,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:14,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:14,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:14,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:14,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:14,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:14,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 05:59:14,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:14,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:59:14,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:14,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:14,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:14,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 05:59:14,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:14,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:14,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:14,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 05:59:14,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:14,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 05:59:14,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:14,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 05:59:14,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:14,960 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 05:59:14,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1209339758] [2020-10-13 05:59:14,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:14,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:59:14,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590176701] [2020-10-13 05:59:14,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:59:14,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:14,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:59:14,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:59:14,963 INFO L87 Difference]: Start difference. First operand 319 states and 378 transitions. Second operand 13 states. [2020-10-13 05:59:15,358 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2020-10-13 05:59:15,530 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 05:59:15,692 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 05:59:16,069 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 115 [2020-10-13 05:59:16,562 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2020-10-13 05:59:16,923 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 109 [2020-10-13 05:59:17,226 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 106 [2020-10-13 05:59:17,646 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 101 [2020-10-13 05:59:18,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:18,125 INFO L93 Difference]: Finished difference Result 648 states and 810 transitions. [2020-10-13 05:59:18,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 05:59:18,128 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 193 [2020-10-13 05:59:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:18,131 INFO L225 Difference]: With dead ends: 648 [2020-10-13 05:59:18,131 INFO L226 Difference]: Without dead ends: 395 [2020-10-13 05:59:18,133 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 05:59:18,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-10-13 05:59:18,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 391. [2020-10-13 05:59:18,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2020-10-13 05:59:18,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 456 transitions. [2020-10-13 05:59:18,152 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 456 transitions. Word has length 193 [2020-10-13 05:59:18,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:18,153 INFO L479 AbstractCegarLoop]: Abstraction has 391 states and 456 transitions. [2020-10-13 05:59:18,153 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:18,153 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 456 transitions. [2020-10-13 05:59:18,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-10-13 05:59:18,156 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:18,156 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 05:59:18,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 05:59:18,157 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:18,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:18,157 INFO L82 PathProgramCache]: Analyzing trace with hash -418428642, now seen corresponding path program 1 times [2020-10-13 05:59:18,157 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:18,158 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876118989] [2020-10-13 05:59:18,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:18,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:18,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:18,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:20,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:20,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-13 05:59:20,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 05:59:20,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2050 [2020-10-13 05:59:20,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 05:59:20,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-13 05:59:20,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:20,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:20,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:20,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:20,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:20,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:20,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 05:59:20,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:20,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:20,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:20,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:20,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:20,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:20,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:20,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:20,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:20,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 05:59:20,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:20,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 05:59:20,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:20,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:20,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:20,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 05:59:20,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:21,112 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 59 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 05:59:21,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876118989] [2020-10-13 05:59:21,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:21,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:59:21,115 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433412464] [2020-10-13 05:59:21,116 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:59:21,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:21,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:59:21,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:59:21,117 INFO L87 Difference]: Start difference. First operand 391 states and 456 transitions. Second operand 13 states. [2020-10-13 05:59:22,029 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 05:59:22,429 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 05:59:22,646 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 05:59:22,855 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 05:59:23,112 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 05:59:23,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:23,445 INFO L93 Difference]: Finished difference Result 787 states and 964 transitions. [2020-10-13 05:59:23,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 05:59:23,446 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 198 [2020-10-13 05:59:23,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:23,451 INFO L225 Difference]: With dead ends: 787 [2020-10-13 05:59:23,452 INFO L226 Difference]: Without dead ends: 442 [2020-10-13 05:59:23,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 05:59:23,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-10-13 05:59:23,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 442. [2020-10-13 05:59:23,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 442 states. [2020-10-13 05:59:23,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 508 transitions. [2020-10-13 05:59:23,483 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 508 transitions. Word has length 198 [2020-10-13 05:59:23,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:23,486 INFO L479 AbstractCegarLoop]: Abstraction has 442 states and 508 transitions. [2020-10-13 05:59:23,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:23,486 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 508 transitions. [2020-10-13 05:59:23,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-13 05:59:23,491 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:23,491 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 05:59:23,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 05:59:23,492 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:23,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:23,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1386285185, now seen corresponding path program 1 times [2020-10-13 05:59:23,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:23,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667976407] [2020-10-13 05:59:23,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:23,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:23,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:23,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:23,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:24,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:25,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:25,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 221 [2020-10-13 05:59:25,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 05:59:25,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2410 [2020-10-13 05:59:25,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:25,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:25,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-13 05:59:25,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 05:59:25,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:26,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:26,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:26,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:26,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:26,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:26,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:26,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:59:26,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:26,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:26,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:26,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:26,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:26,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:26,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:26,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 05:59:26,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:26,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 05:59:26,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:26,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:26,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:26,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:26,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:26,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:59:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:26,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:26,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:26,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 05:59:26,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:26,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 05:59:26,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:26,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:26,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:26,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 05:59:26,442 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:26,612 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-13 05:59:26,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667976407] [2020-10-13 05:59:26,612 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:26,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:59:26,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580312856] [2020-10-13 05:59:26,613 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:59:26,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:26,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:59:26,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:59:26,614 INFO L87 Difference]: Start difference. First operand 442 states and 508 transitions. Second operand 13 states. [2020-10-13 05:59:27,492 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2020-10-13 05:59:27,826 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2020-10-13 05:59:28,023 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2020-10-13 05:59:28,342 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2020-10-13 05:59:28,617 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2020-10-13 05:59:28,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:28,970 INFO L93 Difference]: Finished difference Result 880 states and 1055 transitions. [2020-10-13 05:59:28,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 05:59:28,973 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 209 [2020-10-13 05:59:28,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:28,976 INFO L225 Difference]: With dead ends: 880 [2020-10-13 05:59:28,977 INFO L226 Difference]: Without dead ends: 504 [2020-10-13 05:59:28,978 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=121, Invalid=259, Unknown=0, NotChecked=0, Total=380 [2020-10-13 05:59:28,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states. [2020-10-13 05:59:28,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 504. [2020-10-13 05:59:28,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 504 states. [2020-10-13 05:59:28,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 504 states to 504 states and 576 transitions. [2020-10-13 05:59:28,996 INFO L78 Accepts]: Start accepts. Automaton has 504 states and 576 transitions. Word has length 209 [2020-10-13 05:59:28,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:28,996 INFO L479 AbstractCegarLoop]: Abstraction has 504 states and 576 transitions. [2020-10-13 05:59:28,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:28,996 INFO L276 IsEmpty]: Start isEmpty. Operand 504 states and 576 transitions. [2020-10-13 05:59:28,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-13 05:59:29,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:29,000 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 05:59:29,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 05:59:29,000 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:29,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:29,001 INFO L82 PathProgramCache]: Analyzing trace with hash -592442705, now seen corresponding path program 1 times [2020-10-13 05:59:29,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:29,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559955505] [2020-10-13 05:59:29,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:29,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:29,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:29,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:29,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:32,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:32,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-13 05:59:32,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 05:59:32,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3662 [2020-10-13 05:59:32,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:32,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:32,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 05:59:32,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 05:59:32,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:33,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:33,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:33,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:33,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:33,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:33,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:33,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:59:33,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:33,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:33,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:33,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:33,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 05:59:33,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:33,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:33,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:33,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 05:59:33,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:33,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 05:59:33,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:33,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:33,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:33,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:33,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 05:59:33,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:59:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:33,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:33,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:33,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 05:59:33,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:33,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-13 05:59:33,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:33,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:33,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:33,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 05:59:33,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:33,506 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 05:59:33,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1559955505] [2020-10-13 05:59:33,507 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:33,507 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 05:59:33,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460250930] [2020-10-13 05:59:33,508 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 05:59:33,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:33,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 05:59:33,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 05:59:33,509 INFO L87 Difference]: Start difference. First operand 504 states and 576 transitions. Second operand 14 states. [2020-10-13 05:59:34,134 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2020-10-13 05:59:34,346 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-10-13 05:59:34,654 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 05:59:34,958 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 05:59:35,266 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2020-10-13 05:59:35,502 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2020-10-13 05:59:35,795 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2020-10-13 05:59:36,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:36,071 INFO L93 Difference]: Finished difference Result 1002 states and 1186 transitions. [2020-10-13 05:59:36,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 05:59:36,072 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 212 [2020-10-13 05:59:36,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:36,075 INFO L225 Difference]: With dead ends: 1002 [2020-10-13 05:59:36,075 INFO L226 Difference]: Without dead ends: 547 [2020-10-13 05:59:36,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=170, Invalid=382, Unknown=0, NotChecked=0, Total=552 [2020-10-13 05:59:36,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-10-13 05:59:36,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 542. [2020-10-13 05:59:36,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-10-13 05:59:36,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 621 transitions. [2020-10-13 05:59:36,097 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 621 transitions. Word has length 212 [2020-10-13 05:59:36,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:36,097 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 621 transitions. [2020-10-13 05:59:36,097 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 05:59:36,097 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 621 transitions. [2020-10-13 05:59:36,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2020-10-13 05:59:36,101 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:36,102 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:36,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 05:59:36,102 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:36,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:36,103 INFO L82 PathProgramCache]: Analyzing trace with hash 1548825099, now seen corresponding path program 1 times [2020-10-13 05:59:36,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:36,103 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444018077] [2020-10-13 05:59:36,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:36,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:36,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:36,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:36,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:36,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:39,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:39,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-13 05:59:39,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 05:59:39,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3530 [2020-10-13 05:59:39,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:39,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:39,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-10-13 05:59:39,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 05:59:39,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:40,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:40,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:40,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:40,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:40,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:40,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:40,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 05:59:40,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:40,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:40,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:40,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:40,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:40,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:40,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:40,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 05:59:40,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:40,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 05:59:40,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:40,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:40,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:40,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:40,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:40,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:59:40,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:40,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:40,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:40,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 05:59:40,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:40,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 05:59:40,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:40,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:40,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:40,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 05:59:40,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:40,388 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-13 05:59:40,388 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444018077] [2020-10-13 05:59:40,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:40,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-13 05:59:40,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709214581] [2020-10-13 05:59:40,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-13 05:59:40,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:40,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-13 05:59:40,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2020-10-13 05:59:40,390 INFO L87 Difference]: Start difference. First operand 542 states and 621 transitions. Second operand 14 states. [2020-10-13 05:59:41,098 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2020-10-13 05:59:41,307 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 91 [2020-10-13 05:59:41,811 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2020-10-13 05:59:42,295 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2020-10-13 05:59:42,523 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2020-10-13 05:59:42,897 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-13 05:59:43,462 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-10-13 05:59:43,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:43,909 INFO L93 Difference]: Finished difference Result 1134 states and 1377 transitions. [2020-10-13 05:59:43,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-13 05:59:43,909 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 215 [2020-10-13 05:59:43,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:43,914 INFO L225 Difference]: With dead ends: 1134 [2020-10-13 05:59:43,914 INFO L226 Difference]: Without dead ends: 624 [2020-10-13 05:59:43,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=282, Invalid=648, Unknown=0, NotChecked=0, Total=930 [2020-10-13 05:59:43,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-10-13 05:59:43,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 585. [2020-10-13 05:59:43,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 585 states. [2020-10-13 05:59:43,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 585 states to 585 states and 671 transitions. [2020-10-13 05:59:43,937 INFO L78 Accepts]: Start accepts. Automaton has 585 states and 671 transitions. Word has length 215 [2020-10-13 05:59:43,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:43,938 INFO L479 AbstractCegarLoop]: Abstraction has 585 states and 671 transitions. [2020-10-13 05:59:43,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-13 05:59:43,938 INFO L276 IsEmpty]: Start isEmpty. Operand 585 states and 671 transitions. [2020-10-13 05:59:43,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-10-13 05:59:43,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:43,941 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 05:59:43,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 05:59:43,941 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:43,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:43,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1097547604, now seen corresponding path program 1 times [2020-10-13 05:59:43,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:43,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1802896959] [2020-10-13 05:59:43,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:43,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:43,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:44,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:44,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:44,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:45,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:47,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:47,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-13 05:59:47,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 05:59:47,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3429 [2020-10-13 05:59:47,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:47,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:47,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 05:59:47,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 05:59:47,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:47,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:47,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:47,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:47,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:47,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:47,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:47,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:59:47,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:47,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:47,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:47,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:47,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:47,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:47,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:47,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:47,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:47,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 05:59:47,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:47,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 05:59:47,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:47,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:47,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:47,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:47,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:47,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:59:47,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:47,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:47,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:47,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 05:59:47,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:47,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 05:59:47,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:47,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:47,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:47,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:47,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 05:59:47,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:47,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:47,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:47,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 05:59:47,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:47,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 05:59:47,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:47,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:47,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:47,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 05:59:47,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:48,123 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 84 proven. 3 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2020-10-13 05:59:48,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1802896959] [2020-10-13 05:59:48,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:48,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:59:48,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008647885] [2020-10-13 05:59:48,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:59:48,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:48,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:59:48,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:59:48,125 INFO L87 Difference]: Start difference. First operand 585 states and 671 transitions. Second operand 13 states. [2020-10-13 05:59:50,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:50,307 INFO L93 Difference]: Finished difference Result 1197 states and 1422 transitions. [2020-10-13 05:59:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 05:59:50,312 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 225 [2020-10-13 05:59:50,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:50,315 INFO L225 Difference]: With dead ends: 1197 [2020-10-13 05:59:50,316 INFO L226 Difference]: Without dead ends: 678 [2020-10-13 05:59:50,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2020-10-13 05:59:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2020-10-13 05:59:50,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 593. [2020-10-13 05:59:50,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 05:59:50,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 682 transitions. [2020-10-13 05:59:50,340 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 682 transitions. Word has length 225 [2020-10-13 05:59:50,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:50,341 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 682 transitions. [2020-10-13 05:59:50,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:50,341 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 682 transitions. [2020-10-13 05:59:50,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-13 05:59:50,344 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:50,344 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, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 05:59:50,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 05:59:50,345 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:50,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:50,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1623128556, now seen corresponding path program 1 times [2020-10-13 05:59:50,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:50,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1659493736] [2020-10-13 05:59:50,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:50,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:50,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:50,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:50,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:50,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:51,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:53,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:53,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-13 05:59:53,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 05:59:53,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3358 [2020-10-13 05:59:53,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:53,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 05:59:53,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 05:59:53,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 05:59:53,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:54,305 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 39 [2020-10-13 05:59:54,445 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 37 [2020-10-13 05:59:54,577 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 35 [2020-10-13 05:59:54,735 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 34 [2020-10-13 05:59:54,880 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 31 [2020-10-13 05:59:54,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 05:59:54,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:54,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:54,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:54,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 05:59:54,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:54,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 05:59:54,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:54,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:54,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:54,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 05:59:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:54,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:54,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:54,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 05:59:54,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:54,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 05:59:54,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:54,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:54,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:54,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:54,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:54,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 05:59:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:54,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:54,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:54,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 05:59:54,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:54,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 05:59:54,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:54,997 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 05:59:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:54,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 05:59:54,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:55,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 05:59:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:55,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:55,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 05:59:55,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 05:59:55,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 05:59:55,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 05:59:55,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 05:59:55,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 05:59:55,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 05:59:55,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 05:59:55,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 05:59:55,162 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 96 proven. 3 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 05:59:55,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1659493736] [2020-10-13 05:59:55,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 05:59:55,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 05:59:55,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521826057] [2020-10-13 05:59:55,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 05:59:55,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 05:59:55,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 05:59:55,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 05:59:55,165 INFO L87 Difference]: Start difference. First operand 593 states and 682 transitions. Second operand 13 states. [2020-10-13 05:59:55,642 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-10-13 05:59:56,059 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 93 [2020-10-13 05:59:56,457 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 05:59:56,713 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-13 05:59:57,133 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2020-10-13 05:59:57,458 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 88 [2020-10-13 05:59:57,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 05:59:57,761 INFO L93 Difference]: Finished difference Result 1183 states and 1405 transitions. [2020-10-13 05:59:57,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-13 05:59:57,766 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 237 [2020-10-13 05:59:57,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 05:59:57,771 INFO L225 Difference]: With dead ends: 1183 [2020-10-13 05:59:57,771 INFO L226 Difference]: Without dead ends: 639 [2020-10-13 05:59:57,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=142, Invalid=278, Unknown=0, NotChecked=0, Total=420 [2020-10-13 05:59:57,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2020-10-13 05:59:57,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 593. [2020-10-13 05:59:57,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 593 states. [2020-10-13 05:59:57,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 593 states to 593 states and 681 transitions. [2020-10-13 05:59:57,794 INFO L78 Accepts]: Start accepts. Automaton has 593 states and 681 transitions. Word has length 237 [2020-10-13 05:59:57,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 05:59:57,794 INFO L479 AbstractCegarLoop]: Abstraction has 593 states and 681 transitions. [2020-10-13 05:59:57,794 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 05:59:57,794 INFO L276 IsEmpty]: Start isEmpty. Operand 593 states and 681 transitions. [2020-10-13 05:59:57,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-13 05:59:57,797 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 05:59:57,797 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 05:59:57,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 05:59:57,798 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 05:59:57,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 05:59:57,798 INFO L82 PathProgramCache]: Analyzing trace with hash -817722057, now seen corresponding path program 1 times [2020-10-13 05:59:57,798 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 05:59:57,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1812664452] [2020-10-13 05:59:57,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 05:59:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 05:59:57,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:57,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:58,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 05:59:58,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:00,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:00,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-13 06:00:00,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:00:00,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2867 [2020-10-13 06:00:00,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:00,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:00,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-13 06:00:00,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 06:00:00,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:01,186 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 38 [2020-10-13 06:00:01,319 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 36 [2020-10-13 06:00:01,454 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 34 [2020-10-13 06:00:01,609 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 33 [2020-10-13 06:00:01,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:01,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:01,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:01,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:01,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:01,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:01,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:01,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:01,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:01,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:01,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:01,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:01,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:01,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:01,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:01,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:00:01,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:01,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:01,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:01,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:01,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:01,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:01,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:01,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:00:01,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:01,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-13 06:00:01,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-10-13 06:00:02,172 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1812664452] [2020-10-13 06:00:02,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:02,173 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:02,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983182597] [2020-10-13 06:00:02,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:02,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:02,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:02,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:02,175 INFO L87 Difference]: Start difference. First operand 593 states and 681 transitions. Second operand 13 states. [2020-10-13 06:00:03,171 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:00:03,432 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 91 [2020-10-13 06:00:03,705 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2020-10-13 06:00:04,269 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2020-10-13 06:00:04,577 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-13 06:00:04,844 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2020-10-13 06:00:05,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:05,432 INFO L93 Difference]: Finished difference Result 1184 states and 1408 transitions. [2020-10-13 06:00:05,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:00:05,435 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 249 [2020-10-13 06:00:05,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:05,438 INFO L225 Difference]: With dead ends: 1184 [2020-10-13 06:00:05,438 INFO L226 Difference]: Without dead ends: 610 [2020-10-13 06:00:05,440 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=154, Invalid=352, Unknown=0, NotChecked=0, Total=506 [2020-10-13 06:00:05,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states. [2020-10-13 06:00:05,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 608. [2020-10-13 06:00:05,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 608 states. [2020-10-13 06:00:05,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 608 states to 608 states and 697 transitions. [2020-10-13 06:00:05,461 INFO L78 Accepts]: Start accepts. Automaton has 608 states and 697 transitions. Word has length 249 [2020-10-13 06:00:05,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:05,462 INFO L479 AbstractCegarLoop]: Abstraction has 608 states and 697 transitions. [2020-10-13 06:00:05,462 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:05,462 INFO L276 IsEmpty]: Start isEmpty. Operand 608 states and 697 transitions. [2020-10-13 06:00:05,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-10-13 06:00:05,465 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:05,465 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:00:05,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:00:05,465 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:05,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:05,466 INFO L82 PathProgramCache]: Analyzing trace with hash -437594890, now seen corresponding path program 1 times [2020-10-13 06:00:05,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:05,466 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1062960286] [2020-10-13 06:00:05,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:05,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:05,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:05,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:06,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:06,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:07,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:07,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 265 [2020-10-13 06:00:07,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:00:07,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1530 [2020-10-13 06:00:07,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:07,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:07,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-13 06:00:07,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 06:00:07,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:07,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:07,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:07,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:07,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:07,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:07,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:07,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:07,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:07,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:07,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:07,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:07,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:07,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:07,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:07,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:07,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:00:07,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:07,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:07,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:07,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:07,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:07,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:00:07,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:07,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:07,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:07,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:00:07,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:07,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:00:07,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:07,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:07,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:07,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-13 06:00:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:07,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:07,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:07,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-13 06:00:07,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 06:00:07,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-13 06:00:07,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:07,540 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-13 06:00:07,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1062960286] [2020-10-13 06:00:07,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:07,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:07,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520396950] [2020-10-13 06:00:07,541 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:07,541 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:07,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:07,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:07,542 INFO L87 Difference]: Start difference. First operand 608 states and 697 transitions. Second operand 5 states. [2020-10-13 06:00:08,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:08,471 INFO L93 Difference]: Finished difference Result 1236 states and 1473 transitions. [2020-10-13 06:00:08,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:08,472 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 251 [2020-10-13 06:00:08,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:08,474 INFO L225 Difference]: With dead ends: 1236 [2020-10-13 06:00:08,474 INFO L226 Difference]: Without dead ends: 271 [2020-10-13 06:00:08,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:00:08,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-10-13 06:00:08,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2020-10-13 06:00:08,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-10-13 06:00:08,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 302 transitions. [2020-10-13 06:00:08,485 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 302 transitions. Word has length 251 [2020-10-13 06:00:08,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:08,485 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 302 transitions. [2020-10-13 06:00:08,486 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:00:08,486 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 302 transitions. [2020-10-13 06:00:08,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-13 06:00:08,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:08,488 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:00:08,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:00:08,488 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:08,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:08,488 INFO L82 PathProgramCache]: Analyzing trace with hash 496080370, now seen corresponding path program 1 times [2020-10-13 06:00:08,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:08,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [984854447] [2020-10-13 06:00:08,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:08,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:08,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:08,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:08,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:09,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:09,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:09,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:12,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:12,889 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 276 [2020-10-13 06:00:12,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:00:12,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4349 [2020-10-13 06:00:12,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:12,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:00:12,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:00:12,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:13,506 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-10-13 06:00:13,765 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2020-10-13 06:00:13,995 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2020-10-13 06:00:14,212 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 46 [2020-10-13 06:00:14,406 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 42 [2020-10-13 06:00:14,584 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 38 [2020-10-13 06:00:14,751 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 34 [2020-10-13 06:00:14,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:14,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:14,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:14,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:14,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:14,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:14,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:14,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:14,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:14,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:14,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:14,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:14,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:14,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:14,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:14,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:14,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:14,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:00:14,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:14,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:14,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:14,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:14,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:14,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:14,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:14,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:14,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:14,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:00:14,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:14,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:14,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:14,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:14,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:14,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:14,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:14,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:14,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:14,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:14,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:14,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:00:14,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:14,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:14,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:14,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:00:14,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:15,316 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:00:15,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [984854447] [2020-10-13 06:00:15,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:15,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:15,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839712040] [2020-10-13 06:00:15,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:15,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:15,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:15,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:15,322 INFO L87 Difference]: Start difference. First operand 271 states and 302 transitions. Second operand 13 states. [2020-10-13 06:00:16,017 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:00:16,185 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 06:00:16,537 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 114 [2020-10-13 06:00:16,889 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 111 [2020-10-13 06:00:17,206 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 108 [2020-10-13 06:00:17,677 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 105 [2020-10-13 06:00:18,077 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 100 [2020-10-13 06:00:18,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:18,645 INFO L93 Difference]: Finished difference Result 551 states and 646 transitions. [2020-10-13 06:00:18,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:00:18,645 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 262 [2020-10-13 06:00:18,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:18,649 INFO L225 Difference]: With dead ends: 551 [2020-10-13 06:00:18,649 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:00:18,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:00:18,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:00:18,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:00:18,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:00:18,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 383 transitions. [2020-10-13 06:00:18,660 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 383 transitions. Word has length 262 [2020-10-13 06:00:18,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:18,660 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 383 transitions. [2020-10-13 06:00:18,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 383 transitions. [2020-10-13 06:00:18,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-13 06:00:18,662 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:18,663 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:00:18,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:00:18,663 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:18,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:18,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1618425279, now seen corresponding path program 1 times [2020-10-13 06:00:18,664 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:18,664 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [833010572] [2020-10-13 06:00:18,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:18,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:18,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:18,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:19,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 290 [2020-10-13 06:00:19,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:19,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 333 [2020-10-13 06:00:19,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:19,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:19,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 155 [2020-10-13 06:00:19,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-13 06:00:19,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:19,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:19,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:19,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:19,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:19,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:19,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:00:19,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:19,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:19,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:19,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:19,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:19,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:19,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 06:00:19,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:19,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:19,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:19,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:19,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:19,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:19,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:19,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:19,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:19,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:19,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:00:19,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:19,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:19,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:19,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:19,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:19,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:19,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:19,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:19,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:19,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:00:19,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:19,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:19,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:19,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:19,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:19,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:19,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:19,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:19,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:19,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-13 06:00:19,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:19,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:00:19,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:19,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 06:00:19,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 132 proven. 4 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 06:00:19,796 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [833010572] [2020-10-13 06:00:19,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:19,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:19,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526454386] [2020-10-13 06:00:19,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:19,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:19,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:19,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:19,797 INFO L87 Difference]: Start difference. First operand 346 states and 383 transitions. Second operand 5 states. [2020-10-13 06:00:20,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:20,667 INFO L93 Difference]: Finished difference Result 708 states and 817 transitions. [2020-10-13 06:00:20,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:20,667 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 274 [2020-10-13 06:00:20,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:20,670 INFO L225 Difference]: With dead ends: 708 [2020-10-13 06:00:20,670 INFO L226 Difference]: Without dead ends: 346 [2020-10-13 06:00:20,674 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:00:20,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2020-10-13 06:00:20,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 346. [2020-10-13 06:00:20,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-10-13 06:00:20,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 381 transitions. [2020-10-13 06:00:20,684 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 381 transitions. Word has length 274 [2020-10-13 06:00:20,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:20,684 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 381 transitions. [2020-10-13 06:00:20,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:00:20,685 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 381 transitions. [2020-10-13 06:00:20,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-10-13 06:00:20,686 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:20,687 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-10-13 06:00:20,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:00:20,687 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:20,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:20,688 INFO L82 PathProgramCache]: Analyzing trace with hash -470603621, now seen corresponding path program 1 times [2020-10-13 06:00:20,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:20,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612016954] [2020-10-13 06:00:20,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:20,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:20,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:21,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:21,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 293 [2020-10-13 06:00:21,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:21,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1043 [2020-10-13 06:00:21,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:21,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:21,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 158 [2020-10-13 06:00:21,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 06:00:21,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:22,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:22,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:22,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:22,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:22,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:22,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:22,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:22,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:22,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:22,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:22,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:22,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:22,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:22,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:22,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:22,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:22,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:22,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:00:22,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:22,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:22,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:22,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:22,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:22,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:22,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:22,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:22,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:22,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:22,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:22,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:22,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:22,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:22,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:22,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:22,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:22,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:22,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:22,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:22,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:22,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:22,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:22,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:22,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:22,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:00:22,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:22,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:00:22,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:22,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:22,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:22,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:00:22,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:22,407 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 135 proven. 4 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-10-13 06:00:22,408 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612016954] [2020-10-13 06:00:22,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:22,408 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:22,408 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262469822] [2020-10-13 06:00:22,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:22,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:22,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:22,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:22,410 INFO L87 Difference]: Start difference. First operand 346 states and 381 transitions. Second operand 13 states. [2020-10-13 06:00:22,928 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:00:23,226 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2020-10-13 06:00:23,502 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2020-10-13 06:00:23,798 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2020-10-13 06:00:24,043 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2020-10-13 06:00:24,397 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2020-10-13 06:00:24,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:24,672 INFO L93 Difference]: Finished difference Result 698 states and 802 transitions. [2020-10-13 06:00:24,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:24,673 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 277 [2020-10-13 06:00:24,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:24,676 INFO L225 Difference]: With dead ends: 698 [2020-10-13 06:00:24,676 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:00:24,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:00:24,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:00:24,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:00:24,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:00:24,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 460 transitions. [2020-10-13 06:00:24,689 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 460 transitions. Word has length 277 [2020-10-13 06:00:24,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:24,689 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 460 transitions. [2020-10-13 06:00:24,689 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:24,689 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 460 transitions. [2020-10-13 06:00:24,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-10-13 06:00:24,691 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:24,692 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:00:24,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:00:24,692 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:24,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:24,693 INFO L82 PathProgramCache]: Analyzing trace with hash -1359664097, now seen corresponding path program 1 times [2020-10-13 06:00:24,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:24,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2054722084] [2020-10-13 06:00:24,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:24,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:24,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:24,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:25,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:25,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 295 [2020-10-13 06:00:25,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:25,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-10-13 06:00:25,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:25,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:25,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 160 [2020-10-13 06:00:25,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-13 06:00:25,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:25,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:25,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:25,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:25,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:25,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:25,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:25,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:25,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:25,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:25,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:25,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:25,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:25,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:25,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:25,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:25,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:25,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:25,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:25,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:00:25,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:25,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:25,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:25,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:25,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:25,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:25,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:25,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:25,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:00:25,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:25,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:25,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:25,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:25,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:25,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:25,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:25,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:25,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:25,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:25,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:00:25,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:25,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:25,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:25,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:25,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:25,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:25,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:25,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:25,689 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-13 06:00:25,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:25,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:00:25,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:25,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:00:25,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:25,899 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 137 proven. 4 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-10-13 06:00:25,899 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2054722084] [2020-10-13 06:00:25,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:25,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:25,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567897964] [2020-10-13 06:00:25,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:25,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:25,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:25,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:25,901 INFO L87 Difference]: Start difference. First operand 418 states and 460 transitions. Second operand 5 states. [2020-10-13 06:00:26,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:26,734 INFO L93 Difference]: Finished difference Result 851 states and 970 transitions. [2020-10-13 06:00:26,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:26,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 279 [2020-10-13 06:00:26,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:26,737 INFO L225 Difference]: With dead ends: 851 [2020-10-13 06:00:26,737 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:00:26,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:00:26,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:00:26,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:00:26,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:00:26,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 458 transitions. [2020-10-13 06:00:26,752 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 458 transitions. Word has length 279 [2020-10-13 06:00:26,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:26,752 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 458 transitions. [2020-10-13 06:00:26,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:00:26,752 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 458 transitions. [2020-10-13 06:00:26,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-13 06:00:26,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:26,764 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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] [2020-10-13 06:00:26,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 06:00:26,765 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:26,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:26,765 INFO L82 PathProgramCache]: Analyzing trace with hash -945955336, now seen corresponding path program 1 times [2020-10-13 06:00:26,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:26,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405112643] [2020-10-13 06:00:26,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:26,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:26,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:27,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:27,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 315 [2020-10-13 06:00:27,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:27,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 805 [2020-10-13 06:00:27,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 180 [2020-10-13 06:00:27,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:00:27,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:27,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:27,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:27,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:27,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:27,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:27,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:27,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:27,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:27,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:27,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:27,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:27,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:27,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:27,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:27,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:27,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:00:27,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:27,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:27,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:27,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:27,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:27,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:27,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:27,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:27,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:27,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:27,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:27,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:00:27,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:27,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:27,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:27,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:27,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:27,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:27,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:27,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:27,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:27,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:27,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:27,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:27,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:27,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:27,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:27,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:27,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:00:27,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:27,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:00:27,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:27,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:27,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:00:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:27,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:27,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:27,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:00:27,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:00:27,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:27,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 06:00:27,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:27,999 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 154 proven. 5 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-10-13 06:00:28,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405112643] [2020-10-13 06:00:28,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:28,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:00:28,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347634933] [2020-10-13 06:00:28,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:00:28,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:28,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:00:28,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:00:28,001 INFO L87 Difference]: Start difference. First operand 418 states and 458 transitions. Second operand 6 states. [2020-10-13 06:00:28,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:28,772 INFO L93 Difference]: Finished difference Result 849 states and 963 transitions. [2020-10-13 06:00:28,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:28,773 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 297 [2020-10-13 06:00:28,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:28,775 INFO L225 Difference]: With dead ends: 849 [2020-10-13 06:00:28,775 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:00:28,776 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:00:28,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:00:28,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:00:28,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:00:28,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 456 transitions. [2020-10-13 06:00:28,788 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 456 transitions. Word has length 297 [2020-10-13 06:00:28,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:28,788 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 456 transitions. [2020-10-13 06:00:28,788 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:00:28,788 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 456 transitions. [2020-10-13 06:00:28,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2020-10-13 06:00:28,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:28,791 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:28,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 06:00:28,791 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:28,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:28,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1213478677, now seen corresponding path program 1 times [2020-10-13 06:00:28,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:28,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1119992851] [2020-10-13 06:00:28,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:28,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:28,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:29,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:29,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:29,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 312 [2020-10-13 06:00:29,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:29,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 789 [2020-10-13 06:00:29,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:29,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:29,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-13 06:00:29,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-13 06:00:29,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:29,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:29,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:29,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:29,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:29,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:29,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:29,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:29,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:29,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:29,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:29,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:29,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:29,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:29,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:29,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:29,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:29,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:29,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:00:29,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:29,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:29,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:29,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:29,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:29,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:29,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:29,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:29,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:29,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:29,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:29,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:00:29,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:29,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:29,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:29,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:29,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:29,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:29,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:29,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:29,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:29,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:29,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:29,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:29,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:29,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:29,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:29,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:29,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-13 06:00:29,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:29,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-13 06:00:29,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:29,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:00:29,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:30,072 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 154 proven. 4 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2020-10-13 06:00:30,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1119992851] [2020-10-13 06:00:30,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:30,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:30,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478244757] [2020-10-13 06:00:30,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:30,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:30,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:30,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:30,074 INFO L87 Difference]: Start difference. First operand 418 states and 456 transitions. Second operand 5 states. [2020-10-13 06:00:30,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:30,908 INFO L93 Difference]: Finished difference Result 853 states and 962 transitions. [2020-10-13 06:00:30,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:30,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 296 [2020-10-13 06:00:30,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:30,911 INFO L225 Difference]: With dead ends: 853 [2020-10-13 06:00:30,911 INFO L226 Difference]: Without dead ends: 418 [2020-10-13 06:00:30,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:00:30,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-10-13 06:00:30,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 418. [2020-10-13 06:00:30,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-13 06:00:30,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 454 transitions. [2020-10-13 06:00:30,923 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 454 transitions. Word has length 296 [2020-10-13 06:00:30,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:30,924 INFO L479 AbstractCegarLoop]: Abstraction has 418 states and 454 transitions. [2020-10-13 06:00:30,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:00:30,924 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 454 transitions. [2020-10-13 06:00:30,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 307 [2020-10-13 06:00:30,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:30,927 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:30,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 06:00:30,927 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:30,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:30,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1384950574, now seen corresponding path program 1 times [2020-10-13 06:00:30,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:30,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [621871121] [2020-10-13 06:00:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:30,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:31,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:31,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:31,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 324 [2020-10-13 06:00:33,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:00:33,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2121 [2020-10-13 06:00:33,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:33,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 06:00:33,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:00:33,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:33,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,632 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:33,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:33,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:33,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:00:33,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:33,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:00:33,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:33,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:33,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:33,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:00:33,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:33,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:33,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:33,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:33,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:33,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:00:33,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:33,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:33,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:00:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:33,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:33,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:33,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:00:33,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:33,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:00:33,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:33,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 06:00:33,741 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:33,906 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 163 proven. 5 refuted. 0 times theorem prover too weak. 194 trivial. 0 not checked. [2020-10-13 06:00:33,906 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [621871121] [2020-10-13 06:00:33,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:33,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:33,907 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767952188] [2020-10-13 06:00:33,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:33,908 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:33,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:33,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:33,908 INFO L87 Difference]: Start difference. First operand 418 states and 454 transitions. Second operand 13 states. [2020-10-13 06:00:34,731 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:00:35,070 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:00:35,326 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:00:35,611 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:00:35,904 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:00:36,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:36,253 INFO L93 Difference]: Finished difference Result 835 states and 937 transitions. [2020-10-13 06:00:36,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:36,254 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 306 [2020-10-13 06:00:36,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:36,257 INFO L225 Difference]: With dead ends: 835 [2020-10-13 06:00:36,257 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:00:36,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:00:36,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:00:36,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:00:36,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:00:36,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:00:36,269 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 306 [2020-10-13 06:00:36,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:36,270 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:00:36,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:36,270 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:00:36,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-13 06:00:36,272 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:36,272 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:36,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 06:00:36,273 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:36,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:36,273 INFO L82 PathProgramCache]: Analyzing trace with hash -1650525337, now seen corresponding path program 1 times [2020-10-13 06:00:36,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:36,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [565093442] [2020-10-13 06:00:36,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:36,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:36,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:36,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:36,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 331 [2020-10-13 06:00:36,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:36,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-10-13 06:00:36,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-13 06:00:36,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 06:00:36,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:37,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:37,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:37,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:37,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:37,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:37,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:00:37,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:37,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:37,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:37,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:37,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:00:37,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:37,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,085 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:37,085 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:37,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:37,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-13 06:00:37,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:37,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:37,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:37,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:37,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:37,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:37,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:37,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:37,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:37,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:37,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:00:37,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:37,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:37,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:37,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:37,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:37,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:37,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:37,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:37,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:00:37,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:37,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:37,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:37,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:37,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:37,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:37,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:37,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:37,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-10-13 06:00:37,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:37,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:00:37,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:37,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:37,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:37,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-13 06:00:37,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:37,425 INFO L134 CoverageAnalysis]: Checked inductivity of 362 backedges. 173 proven. 4 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2020-10-13 06:00:37,425 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [565093442] [2020-10-13 06:00:37,425 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:37,425 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:37,426 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522191292] [2020-10-13 06:00:37,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:37,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:37,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:37,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:37,427 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:00:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:38,221 INFO L93 Difference]: Finished difference Result 984 states and 1109 transitions. [2020-10-13 06:00:38,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:38,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 315 [2020-10-13 06:00:38,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:38,231 INFO L225 Difference]: With dead ends: 984 [2020-10-13 06:00:38,231 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:00:38,232 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:00:38,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:00:38,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:00:38,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:00:38,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:00:38,243 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 315 [2020-10-13 06:00:38,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:38,244 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:00:38,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:00:38,244 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:00:38,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-13 06:00:38,246 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:38,247 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:00:38,247 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 06:00:38,247 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:38,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:38,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1099081610, now seen corresponding path program 1 times [2020-10-13 06:00:38,248 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:38,248 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [217943474] [2020-10-13 06:00:38,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:38,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:38,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:38,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:38,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:38,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-13 06:00:38,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:38,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-10-13 06:00:38,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:38,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:38,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-13 06:00:38,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 06:00:38,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:38,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:38,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:38,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:38,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:38,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:38,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:38,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:38,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:38,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:38,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:38,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:38,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:38,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:38,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:38,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:38,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:38,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:38,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:00:38,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:38,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:38,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:38,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:38,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:38,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:38,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:38,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:38,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:38,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:38,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:00:38,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:38,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:38,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:38,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:38,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:38,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:38,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:38,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:38,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:38,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:38,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:38,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:38,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:38,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:38,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:38,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:38,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:38,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:38,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:38,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:00:38,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:38,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:38,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:38,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:38,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:38,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:00:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:38,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:38,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:38,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 06:00:38,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:38,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:00:38,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:38,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:38,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:38,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-13 06:00:38,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:39,133 INFO L134 CoverageAnalysis]: Checked inductivity of 404 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-13 06:00:39,133 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [217943474] [2020-10-13 06:00:39,133 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:39,134 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:00:39,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444800175] [2020-10-13 06:00:39,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:00:39,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:39,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:00:39,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:00:39,135 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 6 states. [2020-10-13 06:00:40,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:40,111 INFO L93 Difference]: Finished difference Result 978 states and 1098 transitions. [2020-10-13 06:00:40,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:40,114 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 320 [2020-10-13 06:00:40,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:40,117 INFO L225 Difference]: With dead ends: 978 [2020-10-13 06:00:40,117 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:00:40,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:00:40,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:00:40,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:00:40,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:00:40,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 525 transitions. [2020-10-13 06:00:40,130 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 525 transitions. Word has length 320 [2020-10-13 06:00:40,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:40,130 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 525 transitions. [2020-10-13 06:00:40,130 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:00:40,131 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 525 transitions. [2020-10-13 06:00:40,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-13 06:00:40,133 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:40,133 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 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] [2020-10-13 06:00:40,134 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 06:00:40,134 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:40,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:40,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1733411626, now seen corresponding path program 1 times [2020-10-13 06:00:40,134 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:40,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786878350] [2020-10-13 06:00:40,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:40,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:40,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:40,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:40,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:42,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:42,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 344 [2020-10-13 06:00:42,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:00:42,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2408 [2020-10-13 06:00:42,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:42,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 209 [2020-10-13 06:00:42,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:00:42,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:43,000 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-10-13 06:00:43,204 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 51 [2020-10-13 06:00:43,447 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 54 [2020-10-13 06:00:43,698 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 51 [2020-10-13 06:00:43,952 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 47 [2020-10-13 06:00:44,173 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 44 [2020-10-13 06:00:44,371 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 39 [2020-10-13 06:00:44,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:44,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:44,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:44,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:44,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:44,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:44,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:44,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:44,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:44,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:44,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:44,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:44,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:44,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:44,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:00:44,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:44,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:44,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:44,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:44,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:44,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:44,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:44,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:00:44,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:44,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:44,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:44,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:44,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:44,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:44,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:44,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:44,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:44,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:00:44,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:44,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:44,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:44,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:44,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:44,519 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:44,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:44,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:00:44,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:44,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:00:44,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:44,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:44,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:44,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:00:44,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:44,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:44,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:44,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:00:44,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:44,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 06:00:44,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:44,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:44,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:44,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 06:00:44,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:44,803 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 183 proven. 5 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-10-13 06:00:44,803 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786878350] [2020-10-13 06:00:44,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:44,804 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:44,804 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617813725] [2020-10-13 06:00:44,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:44,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:44,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:44,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:44,805 INFO L87 Difference]: Start difference. First operand 483 states and 525 transitions. Second operand 13 states. [2020-10-13 06:00:45,420 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-13 06:00:45,606 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-13 06:00:46,042 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 116 [2020-10-13 06:00:46,408 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 113 [2020-10-13 06:00:46,666 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2020-10-13 06:00:46,985 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2020-10-13 06:00:47,301 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 107 [2020-10-13 06:00:47,465 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-10-13 06:00:47,823 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 102 [2020-10-13 06:00:48,051 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2020-10-13 06:00:48,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:48,471 INFO L93 Difference]: Finished difference Result 962 states and 1072 transitions. [2020-10-13 06:00:48,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-13 06:00:48,472 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 326 [2020-10-13 06:00:48,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:48,474 INFO L225 Difference]: With dead ends: 962 [2020-10-13 06:00:48,474 INFO L226 Difference]: Without dead ends: 545 [2020-10-13 06:00:48,475 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=181, Invalid=419, Unknown=0, NotChecked=0, Total=600 [2020-10-13 06:00:48,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2020-10-13 06:00:48,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 539. [2020-10-13 06:00:48,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:00:48,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 589 transitions. [2020-10-13 06:00:48,488 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 589 transitions. Word has length 326 [2020-10-13 06:00:48,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:48,489 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 589 transitions. [2020-10-13 06:00:48,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:48,489 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 589 transitions. [2020-10-13 06:00:48,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2020-10-13 06:00:48,492 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:48,492 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-13 06:00:48,492 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 06:00:48,492 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:48,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:48,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1514528653, now seen corresponding path program 1 times [2020-10-13 06:00:48,493 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:48,493 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920034174] [2020-10-13 06:00:48,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:48,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:48,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:48,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-10-13 06:00:49,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:49,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 706 [2020-10-13 06:00:49,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:49,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:00:49,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-13 06:00:49,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:49,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:49,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:49,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:49,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:49,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:49,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:49,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:49,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:49,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:00:49,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:49,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:49,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:49,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:49,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:00:49,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:49,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:49,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:49,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:49,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:49,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:49,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:49,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:49,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:00:49,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:49,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:49,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:49,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:00:49,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:00:49,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:49,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:49,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:49,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:00:49,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:49,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:49,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:49,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 06:00:49,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:49,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-13 06:00:49,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:49,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:00:49,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:49,658 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 187 proven. 6 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-10-13 06:00:49,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920034174] [2020-10-13 06:00:49,658 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:49,658 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:49,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991586381] [2020-10-13 06:00:49,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:49,659 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:49,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:49,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:49,659 INFO L87 Difference]: Start difference. First operand 539 states and 589 transitions. Second operand 5 states. [2020-10-13 06:00:50,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:50,478 INFO L93 Difference]: Finished difference Result 1088 states and 1221 transitions. [2020-10-13 06:00:50,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:50,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 331 [2020-10-13 06:00:50,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:50,482 INFO L225 Difference]: With dead ends: 1088 [2020-10-13 06:00:50,482 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:00:50,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:00:50,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:00:50,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2020-10-13 06:00:50,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 539 states. [2020-10-13 06:00:50,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 587 transitions. [2020-10-13 06:00:50,494 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 587 transitions. Word has length 331 [2020-10-13 06:00:50,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:50,494 INFO L479 AbstractCegarLoop]: Abstraction has 539 states and 587 transitions. [2020-10-13 06:00:50,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:00:50,494 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 587 transitions. [2020-10-13 06:00:50,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-13 06:00:50,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:50,497 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:00:50,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 06:00:50,498 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:50,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:50,498 INFO L82 PathProgramCache]: Analyzing trace with hash 846507663, now seen corresponding path program 1 times [2020-10-13 06:00:50,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:50,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027101868] [2020-10-13 06:00:50,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:50,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:50,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:50,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:51,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:51,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-10-13 06:00:51,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:51,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 662 [2020-10-13 06:00:51,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:51,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:51,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-13 06:00:51,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-13 06:00:51,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:51,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:51,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:51,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:51,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:51,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:51,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:00:51,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:51,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:51,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:51,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:51,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:51,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:51,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:51,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:51,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:51,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:51,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:51,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:00:51,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:51,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:51,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:51,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:51,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:51,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:51,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:51,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:51,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:51,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:51,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:51,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:51,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:51,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:51,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:51,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:51,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:51,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:51,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:51,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:51,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:51,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:51,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:51,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:51,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:51,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:51,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:51,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:51,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:51,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:51,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 06:00:51,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:51,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 06:00:51,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:51,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 06:00:51,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:51,610 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-13 06:00:51,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027101868] [2020-10-13 06:00:51,610 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:51,610 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:51,610 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457430116] [2020-10-13 06:00:51,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:51,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:51,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:51,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:51,611 INFO L87 Difference]: Start difference. First operand 539 states and 587 transitions. Second operand 5 states. [2020-10-13 06:00:52,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:52,435 INFO L93 Difference]: Finished difference Result 1097 states and 1224 transitions. [2020-10-13 06:00:52,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:00:52,437 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 335 [2020-10-13 06:00:52,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:52,439 INFO L225 Difference]: With dead ends: 1097 [2020-10-13 06:00:52,439 INFO L226 Difference]: Without dead ends: 481 [2020-10-13 06:00:52,441 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:00:52,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states. [2020-10-13 06:00:52,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 481. [2020-10-13 06:00:52,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-10-13 06:00:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 526 transitions. [2020-10-13 06:00:52,455 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 526 transitions. Word has length 335 [2020-10-13 06:00:52,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:52,456 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 526 transitions. [2020-10-13 06:00:52,456 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:00:52,456 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 526 transitions. [2020-10-13 06:00:52,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-13 06:00:52,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:52,461 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2020-10-13 06:00:52,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 06:00:52,461 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:52,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:52,462 INFO L82 PathProgramCache]: Analyzing trace with hash 538277551, now seen corresponding path program 1 times [2020-10-13 06:00:52,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:52,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500132136] [2020-10-13 06:00:52,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:52,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:52,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:52,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:52,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:53,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:55,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:55,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 364 [2020-10-13 06:00:55,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:00:55,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2516 [2020-10-13 06:00:55,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:00:55,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 229 [2020-10-13 06:00:55,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:00:55,051 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:55,409 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:00:55,538 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2020-10-13 06:00:55,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:55,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:55,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:55,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:55,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:55,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:55,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:55,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:55,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:55,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:55,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:55,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:56,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:56,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:56,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:56,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:56,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:56,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:00:56,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:56,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:56,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:56,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:56,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:56,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:56,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:56,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:56,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:56,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:56,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:56,052 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:56,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:56,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:56,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:56,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:56,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:56,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:56,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:56,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:56,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:56,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:56,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:56,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:56,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:56,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:56,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:00:56,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:56,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:56,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:56,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:56,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:56,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:56,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:00:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:56,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:56,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:56,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:00:56,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:56,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:56,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:56,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:56,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:56,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:56,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:56,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:00:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:56,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:56,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:56,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-13 06:00:56,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:56,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:00:56,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:56,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 06:00:56,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:56,391 INFO L134 CoverageAnalysis]: Checked inductivity of 519 backedges. 200 proven. 6 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-10-13 06:00:56,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500132136] [2020-10-13 06:00:56,392 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:56,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:00:56,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938438957] [2020-10-13 06:00:56,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:00:56,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:56,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:00:56,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:00:56,393 INFO L87 Difference]: Start difference. First operand 481 states and 526 transitions. Second operand 13 states. [2020-10-13 06:00:57,053 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:00:57,233 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2020-10-13 06:00:57,411 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-13 06:00:57,554 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-10-13 06:00:57,792 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-10-13 06:00:58,013 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:00:58,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:00:58,378 INFO L93 Difference]: Finished difference Result 969 states and 1090 transitions. [2020-10-13 06:00:58,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:00:58,379 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 344 [2020-10-13 06:00:58,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:00:58,382 INFO L225 Difference]: With dead ends: 969 [2020-10-13 06:00:58,382 INFO L226 Difference]: Without dead ends: 496 [2020-10-13 06:00:58,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=131, Invalid=249, Unknown=0, NotChecked=0, Total=380 [2020-10-13 06:00:58,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2020-10-13 06:00:58,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 483. [2020-10-13 06:00:58,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:00:58,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 529 transitions. [2020-10-13 06:00:58,391 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 529 transitions. Word has length 344 [2020-10-13 06:00:58,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:00:58,392 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 529 transitions. [2020-10-13 06:00:58,392 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:00:58,392 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 529 transitions. [2020-10-13 06:00:58,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-13 06:00:58,395 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:00:58,395 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:00:58,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 06:00:58,396 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:00:58,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:00:58,396 INFO L82 PathProgramCache]: Analyzing trace with hash 105022236, now seen corresponding path program 1 times [2020-10-13 06:00:58,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:00:58,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652767522] [2020-10-13 06:00:58,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:00:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:58,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:58,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:58,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:58,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 365 [2020-10-13 06:00:58,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:00:58,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-10-13 06:00:58,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:58,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:00:58,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 230 [2020-10-13 06:00:58,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-13 06:00:58,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:00:59,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:00:59,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:00:59,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:59,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:59,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:00:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:00:59,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:00:59,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:59,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:59,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:00:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:00:59,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:00:59,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:59,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:00:59,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:00:59,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:00:59,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:59,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:00:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,100 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:00:59,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:00:59,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:00:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:00:59,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:00:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:00:59,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:00:59,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:00:59,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 06:00:59,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:00:59,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 06:00:59,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:00:59,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:00:59,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:00:59,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 06:00:59,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:00:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 204 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:00:59,314 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652767522] [2020-10-13 06:00:59,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:00:59,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:00:59,315 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213727113] [2020-10-13 06:00:59,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:00:59,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:00:59,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:00:59,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:00:59,316 INFO L87 Difference]: Start difference. First operand 483 states and 529 transitions. Second operand 5 states. [2020-10-13 06:01:00,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:00,149 INFO L93 Difference]: Finished difference Result 980 states and 1104 transitions. [2020-10-13 06:01:00,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:00,150 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 347 [2020-10-13 06:01:00,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:00,152 INFO L225 Difference]: With dead ends: 980 [2020-10-13 06:01:00,152 INFO L226 Difference]: Without dead ends: 483 [2020-10-13 06:01:00,153 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:00,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2020-10-13 06:01:00,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 483. [2020-10-13 06:01:00,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 483 states. [2020-10-13 06:01:00,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 527 transitions. [2020-10-13 06:01:00,165 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 527 transitions. Word has length 347 [2020-10-13 06:01:00,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:00,165 INFO L479 AbstractCegarLoop]: Abstraction has 483 states and 527 transitions. [2020-10-13 06:01:00,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:00,165 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 527 transitions. [2020-10-13 06:01:00,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-13 06:01:00,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:00,168 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 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] [2020-10-13 06:01:00,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 06:01:00,168 INFO L427 AbstractCegarLoop]: === Iteration 28 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:00,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:00,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1775030457, now seen corresponding path program 1 times [2020-10-13 06:01:00,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:00,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1018541516] [2020-10-13 06:01:00,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:00,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:00,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:00,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:01,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:03,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:03,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 369 [2020-10-13 06:01:03,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:01:03,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3365 [2020-10-13 06:01:03,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:03,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:01:03,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-10-13 06:01:03,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 06:01:03,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:03,952 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:01:04,082 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2020-10-13 06:01:04,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:04,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:04,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:04,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:04,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:04,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:04,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:04,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:04,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:04,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:04,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:04,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:04,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:04,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:04,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:04,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:04,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:04,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:04,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:04,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:04,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:04,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:04,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:04,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:04,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:04,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:04,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:04,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:04,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:04,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:04,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:04,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:04,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:04,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:04,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:04,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:04,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:04,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:04,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:04,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:04,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:04,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:04,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:04,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:04,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:04,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:04,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:04,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:04,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:04,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:04,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:04,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:04,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:04,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:04,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:01:04,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:04,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:01:04,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:04,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:04,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:04,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:01:04,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:04,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:04,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:04,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-13 06:01:04,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:04,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:01:04,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:04,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:01:04,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:04,858 INFO L134 CoverageAnalysis]: Checked inductivity of 539 backedges. 205 proven. 6 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2020-10-13 06:01:04,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1018541516] [2020-10-13 06:01:04,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:04,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:01:04,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010855641] [2020-10-13 06:01:04,864 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:01:04,864 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:04,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:01:04,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:01:04,865 INFO L87 Difference]: Start difference. First operand 483 states and 527 transitions. Second operand 13 states. [2020-10-13 06:01:05,671 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:01:06,051 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:01:06,400 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:01:06,776 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:01:07,037 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:01:07,344 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:01:07,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:07,681 INFO L93 Difference]: Finished difference Result 956 states and 1072 transitions. [2020-10-13 06:01:07,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:01:07,682 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 349 [2020-10-13 06:01:07,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:07,686 INFO L225 Difference]: With dead ends: 956 [2020-10-13 06:01:07,686 INFO L226 Difference]: Without dead ends: 539 [2020-10-13 06:01:07,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:01:07,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2020-10-13 06:01:07,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 537. [2020-10-13 06:01:07,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:01:07,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 591 transitions. [2020-10-13 06:01:07,699 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 591 transitions. Word has length 349 [2020-10-13 06:01:07,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:07,700 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 591 transitions. [2020-10-13 06:01:07,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:01:07,700 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 591 transitions. [2020-10-13 06:01:07,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2020-10-13 06:01:07,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:07,703 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:01:07,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-13 06:01:07,703 INFO L427 AbstractCegarLoop]: === Iteration 29 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:07,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:07,704 INFO L82 PathProgramCache]: Analyzing trace with hash 1286762811, now seen corresponding path program 1 times [2020-10-13 06:01:07,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:07,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731191000] [2020-10-13 06:01:07,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:07,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:07,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:07,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:08,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:08,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 370 [2020-10-13 06:01:08,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:08,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 518 [2020-10-13 06:01:08,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 235 [2020-10-13 06:01:08,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 06:01:08,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:08,395 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:08,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:08,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:08,400 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:08,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:08,401 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:08,401 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:08,401 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:08,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:08,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:08,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:08,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:08,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:08,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:08,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:08,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:01:08,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:08,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:08,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:08,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:08,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:08,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:08,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:08,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:08,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:01:08,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:08,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:08,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:08,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:08,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:08,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:08,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:08,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:08,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:08,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:08,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:08,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:08,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:08,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:08,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:08,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:08,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:08,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:08,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:08,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:08,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:08,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:08,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:08,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:08,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:08,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:08,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:08,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-13 06:01:08,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:08,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:01:08,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:08,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:08,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:08,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2020-10-13 06:01:08,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:08,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:08,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:08,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 06:01:08,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:08,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-13 06:01:08,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:08,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-13 06:01:08,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:08,677 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 206 proven. 6 refuted. 0 times theorem prover too weak. 336 trivial. 0 not checked. [2020-10-13 06:01:08,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731191000] [2020-10-13 06:01:08,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:08,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:01:08,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647955227] [2020-10-13 06:01:08,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:01:08,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:08,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:01:08,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:01:08,679 INFO L87 Difference]: Start difference. First operand 537 states and 591 transitions. Second operand 5 states. [2020-10-13 06:01:09,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:09,507 INFO L93 Difference]: Finished difference Result 1083 states and 1222 transitions. [2020-10-13 06:01:09,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:09,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 350 [2020-10-13 06:01:09,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:09,512 INFO L225 Difference]: With dead ends: 1083 [2020-10-13 06:01:09,512 INFO L226 Difference]: Without dead ends: 537 [2020-10-13 06:01:09,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2020-10-13 06:01:09,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2020-10-13 06:01:09,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2020-10-13 06:01:09,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 588 transitions. [2020-10-13 06:01:09,526 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 588 transitions. Word has length 350 [2020-10-13 06:01:09,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:09,527 INFO L479 AbstractCegarLoop]: Abstraction has 537 states and 588 transitions. [2020-10-13 06:01:09,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:01:09,527 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 588 transitions. [2020-10-13 06:01:09,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2020-10-13 06:01:09,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:09,530 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:01:09,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-13 06:01:09,530 INFO L427 AbstractCegarLoop]: === Iteration 30 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:09,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:09,530 INFO L82 PathProgramCache]: Analyzing trace with hash 1562789344, now seen corresponding path program 1 times [2020-10-13 06:01:09,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:09,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [910594792] [2020-10-13 06:01:09,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:09,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:09,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:09,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 367 [2020-10-13 06:01:10,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:01:10,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1110 [2020-10-13 06:01:10,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 232 [2020-10-13 06:01:10,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-13 06:01:10,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:10,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:10,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:10,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:10,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:10,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:10,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:10,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:10,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:10,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-13 06:01:10,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:10,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:10,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:10,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:10,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:10,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:10,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:01:10,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:10,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:10,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:10,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:10,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:10,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:01:10,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:10,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:10,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:10,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:10,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:10,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:10,977 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:10,977 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:10,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:01:10,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:10,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:10,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:10,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:10,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:10,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:11,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:11,051 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:11,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-13 06:01:11,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:11,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 06:01:11,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:11,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:11,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-13 06:01:11,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:11,229 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 206 proven. 5 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2020-10-13 06:01:11,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [910594792] [2020-10-13 06:01:11,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:11,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 06:01:11,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561531217] [2020-10-13 06:01:11,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 06:01:11,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:11,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 06:01:11,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-13 06:01:11,231 INFO L87 Difference]: Start difference. First operand 537 states and 588 transitions. Second operand 6 states. [2020-10-13 06:01:12,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:12,035 INFO L93 Difference]: Finished difference Result 1085 states and 1217 transitions. [2020-10-13 06:01:12,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:12,035 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 349 [2020-10-13 06:01:12,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:12,038 INFO L225 Difference]: With dead ends: 1085 [2020-10-13 06:01:12,038 INFO L226 Difference]: Without dead ends: 514 [2020-10-13 06:01:12,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:01:12,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2020-10-13 06:01:12,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 514. [2020-10-13 06:01:12,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 514 states. [2020-10-13 06:01:12,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 514 states and 562 transitions. [2020-10-13 06:01:12,049 INFO L78 Accepts]: Start accepts. Automaton has 514 states and 562 transitions. Word has length 349 [2020-10-13 06:01:12,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:12,050 INFO L479 AbstractCegarLoop]: Abstraction has 514 states and 562 transitions. [2020-10-13 06:01:12,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 06:01:12,050 INFO L276 IsEmpty]: Start isEmpty. Operand 514 states and 562 transitions. [2020-10-13 06:01:12,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2020-10-13 06:01:12,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:01:12,052 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 3, 3, 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] [2020-10-13 06:01:12,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-13 06:01:12,052 INFO L427 AbstractCegarLoop]: === Iteration 31 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:01:12,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:01:12,053 INFO L82 PathProgramCache]: Analyzing trace with hash -506672909, now seen corresponding path program 1 times [2020-10-13 06:01:12,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:01:12,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037198321] [2020-10-13 06:01:12,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:01:12,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:12,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:12,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:12,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:12,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 391 [2020-10-13 06:01:12,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:01:12,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 584 [2020-10-13 06:01:12,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:12,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:01:12,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 256 [2020-10-13 06:01:12,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-13 06:01:12,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:12,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:01:12,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:12,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:12,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:12,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:01:12,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:12,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:12,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:12,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:12,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:12,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:12,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:12,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:01:12,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:12,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:12,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:12,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:01:12,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:12,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:01:12,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:12,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:12,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:12,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:01:12,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:12,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:12,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:12,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:01:12,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:12,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:12,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:12,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:12,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:12,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:01:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:12,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:12,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:12,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:01:12,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:12,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:01:12,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:12,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:12,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:12,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:12,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-13 06:01:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:01:13,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:13,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:01:13,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:13,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:13,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:13,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-10-13 06:01:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-13 06:01:13,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:13,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:01:13,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:01:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:13,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:01:13,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-10-13 06:01:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:01:13,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:01:13,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:01:13,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-13 06:01:13,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:01:13,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 06:01:13,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:01:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:01:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:01:13,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-13 06:01:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:01:13,244 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 227 proven. 6 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2020-10-13 06:01:13,244 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037198321] [2020-10-13 06:01:13,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:01:13,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:01:13,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869606040] [2020-10-13 06:01:13,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:01:13,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:01:13,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:01:13,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:01:13,245 INFO L87 Difference]: Start difference. First operand 514 states and 562 transitions. Second operand 7 states. [2020-10-13 06:01:13,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:01:13,893 INFO L93 Difference]: Finished difference Result 897 states and 993 transitions. [2020-10-13 06:01:13,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:01:13,894 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 371 [2020-10-13 06:01:13,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:01:13,895 INFO L225 Difference]: With dead ends: 897 [2020-10-13 06:01:13,895 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 06:01:13,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-13 06:01:13,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 06:01:13,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 06:01:13,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 06:01:13,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 06:01:13,897 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 371 [2020-10-13 06:01:13,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:01:13,898 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 06:01:13,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:01:13,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 06:01:13,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 06:01:13,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-13 06:01:13,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 06:01:14,591 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 184 [2020-10-13 06:01:14,718 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 186 [2020-10-13 06:01:20,119 WARN L193 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 349 DAG size of output: 250 [2020-10-13 06:01:22,352 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 182 DAG size of output: 144 [2020-10-13 06:01:24,144 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 183 DAG size of output: 113 [2020-10-13 06:01:24,149 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:01:24,150 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~a16~0 |old(~a16~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-10-13 06:01:24,150 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:01:24,150 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-10-13 06:01:24,151 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-10-13 06:01:24,151 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,151 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,151 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,151 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,152 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,152 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,152 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-10-13 06:01:24,152 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-10-13 06:01:24,152 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-10-13 06:01:24,152 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-10-13 06:01:24,152 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-10-13 06:01:24,152 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-10-13 06:01:24,152 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-10-13 06:01:24,153 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-10-13 06:01:24,153 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-10-13 06:01:24,153 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-10-13 06:01:24,153 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,153 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,153 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,153 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,153 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,153 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,154 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-10-13 06:01:24,154 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-10-13 06:01:24,154 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-10-13 06:01:24,154 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-10-13 06:01:24,154 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-10-13 06:01:24,154 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-10-13 06:01:24,154 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-10-13 06:01:24,154 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-10-13 06:01:24,154 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-10-13 06:01:24,154 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-10-13 06:01:24,155 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-10-13 06:01:24,155 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 563) no Hoare annotation was computed. [2020-10-13 06:01:24,155 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-10-13 06:01:24,155 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-10-13 06:01:24,155 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-10-13 06:01:24,155 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-10-13 06:01:24,156 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,156 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,157 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,157 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,157 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,157 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-10-13 06:01:24,157 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-10-13 06:01:24,157 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,158 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-10-13 06:01:24,159 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-10-13 06:01:24,159 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-10-13 06:01:24,159 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-10-13 06:01:24,159 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-10-13 06:01:24,159 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-10-13 06:01:24,159 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-10-13 06:01:24,159 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-10-13 06:01:24,159 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-10-13 06:01:24,159 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-10-13 06:01:24,160 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-10-13 06:01:24,160 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-10-13 06:01:24,160 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-10-13 06:01:24,160 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,160 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,160 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,160 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,160 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,160 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-10-13 06:01:24,160 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-10-13 06:01:24,160 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-10-13 06:01:24,161 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,162 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,163 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,164 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-10-13 06:01:24,164 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-10-13 06:01:24,164 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-10-13 06:01:24,164 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-10-13 06:01:24,164 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-10-13 06:01:24,164 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-10-13 06:01:24,164 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-10-13 06:01:24,164 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-10-13 06:01:24,164 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-10-13 06:01:24,164 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse57 (= |old(~a21~0)| 1)) (.cse47 (= |old(~a20~0)| 1)) (.cse48 (= |old(~a17~0)| 1)) (.cse8 (not (<= |old(~a7~0)| 0))) (.cse51 (= ~a8~0 15)) (.cse38 (= |old(~a7~0)| 1)) (.cse21 (= 14 ~a8~0)) (.cse22 (= 5 ~a16~0)) (.cse0 (= ~a7~0 |old(~a7~0)|)) (.cse1 (= ~a17~0 |old(~a17~0)|)) (.cse20 (= ~a21~0 1)) (.cse2 (= ~a20~0 |old(~a20~0)|)) (.cse45 (= ~a8~0 13)) (.cse53 (= ~a16~0 4))) (let ((.cse36 (not (<= |old(~a17~0)| 0))) (.cse44 (not (= 6 |old(~a16~0)|))) (.cse55 (= ~a21~0 |old(~a21~0)|)) (.cse3 (<= ~a16~0 4)) (.cse5 (<= 4 ~a16~0)) (.cse10 (not (<= |old(~a16~0)| 4))) (.cse11 (not (<= |old(~a17~0)| 1))) (.cse13 (not (<= 4 |old(~a16~0)|))) (.cse56 (and (or (not (<= |calculate_output_#in~input| 5)) (not (<= 5 |calculate_output_#in~input|))) (or (not (<= 4 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 4))) (or (not (<= |calculate_output_#in~input| 2)) (not (<= 2 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 3)) (not (<= 3 |calculate_output_#in~input|))) (or (not (<= |calculate_output_#in~input| 6)) (not (<= 6 |calculate_output_#in~input|))) (or (not (<= 1 |calculate_output_#in~input|)) (not (<= |calculate_output_#in~input| 1))))) (.cse15 (not (<= |old(~a8~0)| 13))) (.cse34 (not (<= |old(~a20~0)| 0))) (.cse49 (and .cse0 .cse1 .cse20 .cse2 .cse45 .cse53)) (.cse4 (= ~a8~0 |old(~a8~0)|)) (.cse50 (and .cse0 .cse1 .cse20 .cse2 .cse21 .cse22)) (.cse39 (not .cse38)) (.cse35 (and .cse0 .cse1 .cse20 .cse2 .cse51 .cse22)) (.cse23 (not (= 5 |old(~a16~0)|))) (.cse18 (not (= |old(~a17~0)| |old(~a20~0)|))) (.cse19 (not (= 0 |old(~a20~0)|))) (.cse40 (and .cse0 .cse1 .cse20 .cse2 .cse51 .cse53)) (.cse37 (not (= 15 |old(~a8~0)|))) (.cse54 (not (= 0 |old(~a17~0)|))) (.cse25 (and .cse8 (not (<= 2 |old(~a7~0)|)))) (.cse30 (= ~a16~0 |old(~a16~0)|)) (.cse6 (<= ~a21~0 1)) (.cse7 (<= 1 ~a21~0)) (.cse31 (<= ~a8~0 15)) (.cse32 (<= 15 ~a8~0)) (.cse27 (not (<= |old(~a8~0)| 15))) (.cse9 (not (<= |old(~a21~0)| 1))) (.cse12 (not (<= |old(~a20~0)| 1))) (.cse26 (not (<= |old(~a16~0)| 6))) (.cse28 (not (< 5 |old(~a16~0)|))) (.cse29 (not (<= 15 |old(~a8~0)|))) (.cse14 (not (<= 1 |old(~a21~0)|))) (.cse33 (and (not (= |calculate_output_#in~input| 3)) (not (= |calculate_output_#in~input| 2)) (not (= |calculate_output_#in~input| 4)) (not (= |calculate_output_#in~input| 1)) (not (= |calculate_output_#in~input| 5)) (not (= |calculate_output_#in~input| 6)))) (.cse43 (not .cse48)) (.cse17 (not (= 14 |old(~a8~0)|))) (.cse46 (not .cse47)) (.cse42 (not (= |old(~a8~0)| 13))) (.cse58 (= ~a7~0 0)) (.cse52 (not (= |old(~a7~0)| |old(~a17~0)|))) (.cse24 (not .cse57)) (.cse16 (not (= ~a12~0 8))) (.cse59 (not (= |old(~a7~0)| 0))) (.cse41 (not (= 4 |old(~a16~0)|)))) (and (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 (not (<= 1 |old(~a17~0)|)) .cse10 (not (<= 13 |old(~a8~0)|)) .cse11 (not (<= 1 |old(~a20~0)|)) .cse12 .cse13 .cse14 .cse15 .cse16) (or .cse17 .cse18 .cse19 (not (= |old(~a7~0)| |old(~a20~0)|)) (and .cse1 .cse20 .cse2 .cse21 .cse22 (= ~a20~0 ~a7~0)) .cse23 .cse24 .cse16) (or .cse25 .cse26 .cse27 .cse9 .cse28 .cse29 .cse14 (and .cse0 .cse1 .cse2 .cse30 .cse6 .cse7 .cse31 .cse32) .cse11 .cse33 .cse16 .cse34) (or .cse35 .cse36 .cse23 .cse33 .cse37 .cse24 .cse16 .cse38) (or .cse18 .cse39 .cse19 .cse40 .cse37 .cse24 .cse16 .cse41) (or .cse42 .cse43 .cse8 .cse44 (and .cse0 .cse1 .cse20 .cse2 .cse30 .cse45) .cse46 .cse24 .cse16) (or .cse42 .cse47 .cse48 .cse24 .cse49 .cse16 .cse41 .cse38) (or .cse17 .cse18 .cse39 .cse19 .cse50 .cse23 .cse24 .cse16) (or .cse39 (and .cse0 .cse1 .cse20 .cse2 .cse30 .cse51) .cse36 .cse23 .cse37 .cse24 .cse16 .cse34) (or .cse17 .cse52 (and .cse1 .cse2 .cse21 .cse53 (= ~a21~0 ~a20~0) (= ~a17~0 ~a7~0)) (not (= |old(~a20~0)| |old(~a21~0)|)) .cse24 .cse16 .cse41 .cse54) (or (and .cse1 .cse0 .cse55 .cse2 .cse30 .cse4) (and (or .cse42 .cse43 .cse56 .cse39 .cse46 .cse16 .cse41) (or .cse25 .cse26 .cse27 .cse28 .cse9 .cse56 .cse29 .cse14 .cse36 .cse16))) (or .cse17 (and .cse0 .cse1 .cse20 .cse2 .cse4 .cse53) .cse8 .cse36 .cse24 .cse16 .cse34 .cse41) (or .cse43 .cse47 (and .cse0 .cse20 .cse2 .cse30 .cse51 (= ~a17~0 1)) .cse33 .cse37 .cse24 .cse16 .cse41 .cse38) (or .cse42 .cse39 (and .cse0 .cse1 .cse55 .cse2 .cse45 .cse53) .cse46 .cse57 .cse33 .cse16 .cse41 .cse54) (or .cse42 .cse56 (and .cse0 .cse1 .cse55 .cse2 .cse30 .cse45) .cse39 .cse44 .cse46 .cse57 .cse16 .cse54) (or (and .cse0 .cse1 (< 12 ~a8~0) .cse55 .cse2 .cse3 .cse5 (<= ~a8~0 13)) (and (not (<= |old(~a21~0)| 0)) (not (<= 2 |old(~a21~0)|))) .cse10 (not (<= |old(~a7~0)| 1)) .cse11 (not (< 0 |old(~a7~0)|)) .cse13 (not (< 0 |old(~a17~0)|)) .cse56 .cse15 (not (< 12 |old(~a8~0)|)) .cse16 .cse34) (or .cse42 .cse43 .cse39 .cse46 .cse24 .cse49 .cse16 .cse41) (or .cse43 .cse47 .cse35 .cse23 .cse33 .cse37 .cse24 .cse16 .cse38) (or .cse17 (and .cse0 .cse1 (= ~a21~0 ~a7~0) .cse2 .cse4 .cse53) .cse18 .cse39 .cse16 (not (= |old(~a7~0)| |old(~a21~0)|)) .cse41 .cse54) (or .cse17 .cse39 .cse46 .cse50 .cse23 .cse24 .cse16 .cse54) (or .cse42 .cse43 (not (= 0 |old(~a21~0)|)) (and .cse0 .cse1 .cse2 .cse45 (= ~a21~0 0) .cse22) .cse39 .cse46 .cse23 .cse33 .cse16) (or .cse43 .cse35 .cse8 .cse23 .cse33 .cse37 .cse24 .cse16) (or .cse18 .cse19 .cse40 .cse33 .cse37 .cse24 .cse16 .cse41) (or .cse46 .cse40 .cse33 .cse37 .cse24 .cse16 .cse41 .cse38 .cse54) (or .cse25 (and .cse0 .cse1 .cse30 (< 0 ~a20~0) .cse6 (<= ~a20~0 1) .cse7 .cse31 .cse32) (not (<= 2 |old(~a17~0)|)) .cse27 .cse9 .cse12 .cse26 .cse28 .cse29 .cse14 .cse33 .cse16 (not (< 0 |old(~a20~0)|))) (or .cse43 .cse17 .cse46 (and .cse1 .cse20 .cse2 .cse21 .cse53 .cse58) .cse24 .cse16 .cse59 .cse41) (or .cse42 (and .cse1 .cse20 .cse2 .cse45 .cse53 .cse58) .cse52 .cse24 .cse16 .cse59 .cse41)))) [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-10-13 06:01:24,166 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-10-13 06:01:24,167 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,168 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 06:01:24,169 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (= ~a16~0 5) (= ~a12~0 8) (= ~a8~0 15) (<= ~a7~0 0) (= ~a17~0 1) (= 1 ~a20~0)) [2020-10-13 06:01:24,169 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 06:01:24,169 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 06:01:24,170 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a7~0)| 0)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 15)) (not (= |old(~a20~0)| 1)) (not (= 5 |old(~a16~0)|)) (not (= 15 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8))) [2020-10-13 06:01:24,170 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:01:24,170 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse5 (= ~a7~0 1)) (.cse2 (= ~a21~0 1)) (.cse23 (<= ~a7~0 0)) (.cse24 (= ~a20~0 1))) (let ((.cse0 (= ~a20~0 0)) (.cse1 (= ~a20~0 ~a17~0)) (.cse33 (= ~a17~0 ~a7~0)) (.cse26 (<= 13 ~a8~0)) (.cse27 (<= 1 ~a17~0)) (.cse28 (<= ~a16~0 4)) (.cse29 (<= 4 ~a16~0)) (.cse30 (<= ~a17~0 1)) (.cse31 (<= ~a8~0 13)) (.cse20 (not .cse24)) (.cse8 (<= ~a16~0 6)) (.cse35 (<= 1 ~a20~0)) (.cse9 (<= 6 ~a16~0)) (.cse12 (or (< 1 ~a7~0) .cse23)) (.cse13 (<= ~a21~0 1)) (.cse36 (<= ~a20~0 1)) (.cse14 (<= 1 ~a21~0)) (.cse15 (<= ~a8~0 15)) (.cse16 (<= 15 ~a8~0)) (.cse22 (= ~a16~0 6)) (.cse37 (not .cse2)) (.cse6 (= ~a8~0 15)) (.cse19 (not .cse5)) (.cse25 (= ~a17~0 0)) (.cse34 (= ~a7~0 0)) (.cse3 (= 14 ~a8~0)) (.cse11 (<= ~a17~0 0)) (.cse32 (<= ~a20~0 0)) (.cse21 (or (= 5 main_~input~0) (= 6 main_~input~0) (= main_~input~0 4) (= 3 main_~input~0) (= main_~input~0 1) (= 2 main_~input~0))) (.cse4 (= 5 ~a16~0)) (.cse10 (or (and (<= 4 main_~input~0) (<= main_~input~0 4)) (and (<= 2 main_~input~0) (<= main_~input~0 2)) (and (<= 6 main_~input~0) (<= main_~input~0 6)) (and (<= main_~input~0 3) (<= 3 main_~input~0)) (and (<= main_~input~0 1) (<= 1 main_~input~0)) (and (<= main_~input~0 5) (<= 5 main_~input~0)))) (.cse18 (= ~a8~0 13)) (.cse7 (= ~a16~0 4)) (.cse17 (= ~a17~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= ~a20~0 ~a7~0)) (and .cse0 .cse1 .cse2 .cse5 .cse6 .cse7) (and .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (and .cse2 (not .cse17) .cse18 .cse7 .cse19 .cse20) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) .cse2 .cse21 .cse6 .cse4) (and .cse2 .cse22 .cse23 .cse18 .cse24 .cse17) (and (= ~a21~0 ~a7~0) .cse1 .cse5 .cse3 .cse7 .cse25) (and .cse0 .cse1 .cse2 .cse21 .cse6 .cse7) (and (<= 1 ~a7~0) .cse26 .cse27 .cse28 .cse10 .cse29 .cse30 (<= ~a7~0 1) (or (< 1 ~a21~0) (<= ~a21~0 0)) .cse31 .cse32) (not (= 5 |old(~a16~0)|)) (and .cse2 .cse18 .cse7 .cse33 .cse34) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (and .cse2 .cse21 .cse6 .cse7 .cse19 .cse20 .cse17) (and .cse0 .cse1 .cse2 .cse5 .cse3 .cse4) (and .cse2 .cse3 .cse7 (= ~a21~0 ~a20~0) .cse33 .cse25) (not (<= |old(~a7~0)| 0)) (and .cse2 .cse5 .cse11 .cse6 .cse4 .cse32) (and .cse2 .cse5 .cse3 .cse24 .cse4 .cse25) (and .cse26 .cse35 .cse27 .cse28 .cse29 .cse23 .cse13 .cse36 .cse30 .cse14 .cse31) (and .cse2 .cse21 .cse6 .cse19 .cse4 .cse20 .cse17) (and .cse5 .cse21 .cse37 .cse18 .cse24 .cse7 .cse25) (and .cse8 .cse35 .cse9 .cse21 .cse12 .cse13 .cse36 .cse14 .cse15 (< 1 ~a17~0) .cse16) (and .cse2 .cse22 .cse21 .cse19 .cse15 .cse16 .cse17 .cse32) (and .cse2 .cse5 .cse18 .cse24 .cse7 .cse17) (and .cse2 .cse21 .cse11 .cse6 .cse19 .cse4) (not (= |old(~a17~0)| 1)) (and .cse5 .cse22 .cse10 .cse37 .cse18 .cse24 .cse25) (and .cse2 .cse21 .cse6 .cse24 .cse7 .cse19 .cse25) (and .cse2 .cse3 .cse24 .cse7 .cse34 .cse17) (and .cse2 .cse3 .cse11 .cse23 .cse7 .cse32) (and .cse5 .cse21 .cse18 (= ~a21~0 0) .cse24 .cse4 .cse17) (and .cse5 .cse10 .cse18 .cse24 .cse7 .cse17)))) [2020-10-13 06:01:24,170 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-10-13 06:01:24,170 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-10-13 06:01:24,171 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (= ~a7~0 1)) (.cse0 (= ~a21~0 1)) (.cse5 (= ~a20~0 1)) (.cse25 (<= ~a7~0 0))) (let ((.cse10 (<= ~a16~0 6)) (.cse12 (<= 6 ~a16~0)) (.cse13 (or (< 1 ~a7~0) .cse25)) (.cse27 (= ~a17~0 ~a7~0)) (.cse29 (<= 13 ~a8~0)) (.cse11 (<= 1 ~a20~0)) (.cse30 (<= 1 ~a17~0)) (.cse31 (<= ~a16~0 4)) (.cse32 (<= 4 ~a16~0)) (.cse14 (<= ~a21~0 1)) (.cse15 (<= ~a20~0 1)) (.cse33 (<= ~a17~0 1)) (.cse16 (<= 1 ~a21~0)) (.cse34 (<= ~a8~0 13)) (.cse2 (= 5 ~a16~0)) (.cse22 (not .cse5)) (.cse7 (= ~a20~0 0)) (.cse8 (= ~a20~0 ~a17~0)) (.cse1 (= ~a8~0 15)) (.cse35 (not .cse0)) (.cse4 (= ~a8~0 13)) (.cse26 (= ~a17~0 0)) (.cse24 (= ~a16~0 6)) (.cse20 (not .cse3)) (.cse17 (<= ~a8~0 15)) (.cse18 (<= 15 ~a8~0)) (.cse28 (= ~a7~0 0)) (.cse6 (= ~a17~0 1)) (.cse9 (= 14 ~a8~0)) (.cse19 (<= ~a17~0 0)) (.cse21 (= ~a16~0 4)) (.cse23 (<= ~a20~0 0))) (or (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) .cse0 .cse1 .cse2) (and .cse3 .cse4 (= ~a21~0 0) .cse5 .cse2 .cse6) (and .cse7 .cse8 .cse0 .cse9 .cse2 (= ~a20~0 ~a7~0)) (and .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 (< 1 ~a17~0) .cse18) (and .cse0 .cse19 .cse1 .cse2 .cse20) (not (= |old(~a20~0)| 1)) (and .cse3 .cse4 .cse5 .cse21 .cse6) (not (= |old(~a21~0)| 1)) (and .cse0 (not .cse6) .cse4 .cse21 .cse20 .cse22) (and .cse0 .cse19 .cse1 .cse2 .cse23) (and .cse0 .cse24 .cse25 .cse4 .cse5 .cse6) (and (= ~a21~0 ~a7~0) .cse8 .cse3 .cse9 .cse21 .cse26) (not (= 5 |old(~a16~0)|)) (and .cse0 .cse4 .cse21 .cse27 .cse28) (not (= 15 |old(~a8~0)|)) (not (= ~a12~0 8)) (and .cse7 .cse8 .cse0 .cse3 .cse9 .cse2) (and .cse0 .cse1 .cse21 .cse20 .cse22 .cse6) (and .cse10 .cse12 .cse19 .cse13 .cse14 .cse16 .cse17 .cse18) (and .cse0 .cse9 .cse21 (= ~a21~0 ~a20~0) .cse27 .cse26) (and (<= 1 ~a7~0) .cse29 .cse30 .cse31 .cse32 .cse33 (<= ~a7~0 1) (or (< 1 ~a21~0) (<= ~a21~0 0)) .cse34 .cse23) (not (<= |old(~a7~0)| 0)) (and .cse0 .cse3 .cse9 .cse5 .cse2 .cse26) (and .cse29 .cse11 .cse30 .cse31 .cse32 .cse25 .cse14 .cse15 .cse33 .cse16 .cse34) (and .cse3 .cse24 .cse35 .cse4 .cse5 .cse26) (and .cse0 .cse1 .cse20 .cse2 .cse22 .cse6) (and .cse7 .cse8 .cse0 .cse1 .cse21) (not (= |old(~a17~0)| 1)) (and .cse0 .cse1 .cse5 .cse21 .cse20 .cse26) (and .cse3 .cse35 .cse4 .cse5 .cse21 .cse26) (and .cse0 .cse24 .cse20 .cse17 .cse18 .cse6 .cse23) (and .cse0 .cse9 .cse5 .cse21 .cse28 .cse6) (and .cse0 .cse9 .cse19 .cse25 .cse21 .cse23)))) [2020-10-13 06:01:24,171 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-10-13 06:01:24,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:01:24 BoogieIcfgContainer [2020-10-13 06:01:24,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:01:24,228 INFO L168 Benchmark]: Toolchain (without parser) took 158710.66 ms. Allocated memory was 138.9 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 100.0 MB in the beginning and 782.0 MB in the end (delta: -682.1 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-10-13 06:01:24,229 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-10-13 06:01:24,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.51 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 170.1 MB in the end (delta: -70.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:01:24,231 INFO L168 Benchmark]: Boogie Preprocessor took 115.29 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 165.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-13 06:01:24,231 INFO L168 Benchmark]: RCFGBuilder took 1315.84 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 164.4 MB in the beginning and 180.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:01:24,232 INFO L168 Benchmark]: TraceAbstraction took 156530.18 ms. Allocated memory was 236.5 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 178.5 MB in the beginning and 782.0 MB in the end (delta: -603.5 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2020-10-13 06:01:24,234 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.51 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 99.8 MB in the beginning and 170.1 MB in the end (delta: -70.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.29 ms. Allocated memory is still 203.9 MB. Free memory was 170.1 MB in the beginning and 165.1 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1315.84 ms. Allocated memory was 203.9 MB in the beginning and 236.5 MB in the end (delta: 32.5 MB). Free memory was 164.4 MB in the beginning and 180.0 MB in the end (delta: -15.6 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 156530.18 ms. Allocated memory was 236.5 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 178.5 MB in the beginning and 782.0 MB in the end (delta: -603.5 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 563]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((a7 == \old(a7) && a17 == \old(a17)) && a21 == 1) && a8 == 15) && 5 == a16) || (((((a7 == 1 && a8 == 13) && a21 == 0) && a20 == 1) && 5 == a16) && a17 == 1)) || (((((a20 == 0 && a20 == a17) && a21 == 1) && 14 == a8) && 5 == a16) && a20 == a7)) || (((((((((a16 <= 6 && 1 <= a20) && 6 <= a16) && (1 < a7 || a7 <= 0)) && a21 <= 1) && a20 <= 1) && 1 <= a21) && a8 <= 15) && 1 < a17) && 15 <= a8)) || ((((a21 == 1 && a17 <= 0) && a8 == 15) && 5 == a16) && !(a7 == 1))) || !(\old(a20) == 1)) || ((((a7 == 1 && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 1)) || !(\old(a21) == 1)) || (((((a21 == 1 && !(a17 == 1)) && a8 == 13) && a16 == 4) && !(a7 == 1)) && !(a20 == 1))) || ((((a21 == 1 && a17 <= 0) && a8 == 15) && 5 == a16) && a20 <= 0)) || (((((a21 == 1 && a16 == 6) && a7 <= 0) && a8 == 13) && a20 == 1) && a17 == 1)) || (((((a21 == a7 && a20 == a17) && a7 == 1) && 14 == a8) && a16 == 4) && a17 == 0)) || !(5 == \old(a16))) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a17 == a7) && a7 == 0)) || !(15 == \old(a8))) || !(a12 == 8)) || (((((a20 == 0 && a20 == a17) && a21 == 1) && a7 == 1) && 14 == a8) && 5 == a16)) || (((((a21 == 1 && a8 == 15) && a16 == 4) && !(a7 == 1)) && !(a20 == 1)) && a17 == 1)) || (((((((a16 <= 6 && 6 <= a16) && a17 <= 0) && (1 < a7 || a7 <= 0)) && a21 <= 1) && 1 <= a21) && a8 <= 15) && 15 <= a8)) || (((((a21 == 1 && 14 == a8) && a16 == 4) && a21 == a20) && a17 == a7) && a17 == 0)) || (((((((((1 <= a7 && 13 <= a8) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a17 <= 1) && a7 <= 1) && (1 < a21 || a21 <= 0)) && a8 <= 13) && a20 <= 0)) || !(\old(a7) <= 0)) || (((((a21 == 1 && a7 == 1) && 14 == a8) && a20 == 1) && 5 == a16) && a17 == 0)) || ((((((((((13 <= a8 && 1 <= a20) && 1 <= a17) && a16 <= 4) && 4 <= a16) && a7 <= 0) && a21 <= 1) && a20 <= 1) && a17 <= 1) && 1 <= a21) && a8 <= 13)) || (((((a7 == 1 && a16 == 6) && !(a21 == 1)) && a8 == 13) && a20 == 1) && a17 == 0)) || (((((a21 == 1 && a8 == 15) && !(a7 == 1)) && 5 == a16) && !(a20 == 1)) && a17 == 1)) || ((((a20 == 0 && a20 == a17) && a21 == 1) && a8 == 15) && a16 == 4)) || !(\old(a17) == 1)) || (((((a21 == 1 && a8 == 15) && a20 == 1) && a16 == 4) && !(a7 == 1)) && a17 == 0)) || (((((a7 == 1 && !(a21 == 1)) && a8 == 13) && a20 == 1) && a16 == 4) && a17 == 0)) || ((((((a21 == 1 && a16 == 6) && !(a7 == 1)) && a8 <= 15) && 15 <= a8) && a17 == 1) && a20 <= 0)) || (((((a21 == 1 && 14 == a8) && a20 == 1) && a16 == 4) && a7 == 0) && a17 == 1)) || (((((a21 == 1 && 14 == a8) && a17 <= 0) && a7 <= 0) && a16 == 4) && a20 <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 146.1s, OverallIterations: 31, TraceHistogramMax: 7, AutomataDifference: 59.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 10.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 798 SDtfs, 9116 SDslu, 1197 SDs, 0 SdLazy, 22858 SolverSat, 1265 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 785 GetRequests, 351 SyntacticMatches, 25 SemanticMatches, 409 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1101 ImplicationChecksByTransitivity, 40.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=608occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 31 MinimizatonAttempts, 228 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 206 PreInvPairs, 262 NumberOfFragments, 3572 HoareAnnotationTreeSize, 206 FomulaSimplifications, 1108 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3638 FormulaSimplificationTreeSizeReductionInter, 9.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 77.8s InterpolantComputationTime, 8317 NumberOfCodeBlocks, 8317 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 8286 ConstructedInterpolants, 0 QuantifiedInterpolants, 21299529 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 31 InterpolantComputations, 1 PerfectInterpolantSequences, 8207/8317 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...