/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/Problem14_label32.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:51:13,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:51:13,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:51:13,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:51:13,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:51:13,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:51:13,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:51:13,234 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:51:13,236 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:51:13,236 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:51:13,237 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:51:13,238 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:51:13,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:51:13,240 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:51:13,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:51:13,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:51:13,243 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:51:13,244 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:51:13,245 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:51:13,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:51:13,249 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:51:13,250 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:51:13,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:51:13,252 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:51:13,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:51:13,255 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:51:13,255 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:51:13,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:51:13,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:51:13,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:51:13,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:51:13,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:51:13,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:51:13,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:51:13,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:51:13,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:51:13,262 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:51:13,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:51:13,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:51:13,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:51:13,264 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:51:13,265 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 08:51:13,289 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:51:13,289 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:51:13,290 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:51:13,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:51:13,291 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:51:13,291 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:51:13,291 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:51:13,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:51:13,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:51:13,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:51:13,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:51:13,292 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:51:13,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:51:13,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:51:13,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:51:13,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:51:13,293 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:51:13,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:51:13,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:51:13,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:51:13,297 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:51:13,297 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:51:13,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:51:13,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:51:13,298 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:51:13,298 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:51:13,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:51:13,298 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:51:13,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:51:13,299 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 08:51:13,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:51:13,597 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:51:13,600 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:51:13,602 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:51:13,602 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:51:13,603 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label32.c [2020-10-13 08:51:13,666 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/588b0a6bb/1af8ae92e1854d15adebf6e65facaa73/FLAG0311f5a95 [2020-10-13 08:51:14,264 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:51:14,268 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label32.c [2020-10-13 08:51:14,281 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/588b0a6bb/1af8ae92e1854d15adebf6e65facaa73/FLAG0311f5a95 [2020-10-13 08:51:14,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/588b0a6bb/1af8ae92e1854d15adebf6e65facaa73 [2020-10-13 08:51:14,541 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:51:14,543 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:51:14,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:51:14,544 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:51:14,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:51:14,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:51:14" (1/1) ... [2020-10-13 08:51:14,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff1ef1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:51:14, skipping insertion in model container [2020-10-13 08:51:14,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:51:14" (1/1) ... [2020-10-13 08:51:14,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:51:14,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:51:15,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:51:15,224 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:51:15,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:51:15,384 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:51:15,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:51:15 WrapperNode [2020-10-13 08:51:15,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:51:15,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:51:15,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:51:15,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:51:15,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:51:15" (1/1) ... [2020-10-13 08:51:15,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:51:15" (1/1) ... [2020-10-13 08:51:15,426 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:51:15" (1/1) ... [2020-10-13 08:51:15,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:51:15" (1/1) ... [2020-10-13 08:51:15,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:51:15" (1/1) ... [2020-10-13 08:51:15,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:51:15" (1/1) ... [2020-10-13 08:51:15,502 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:51:15" (1/1) ... [2020-10-13 08:51:15,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:51:15,513 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:51:15,513 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:51:15,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:51:15,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:51:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:51:15,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:51:15,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:51:15,594 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:51:15,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:51:15,595 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:51:15,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:51:15,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:51:15,596 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:51:15,596 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:51:15,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:51:15,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:51:17,087 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:51:17,088 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:51:17,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:51:17 BoogieIcfgContainer [2020-10-13 08:51:17,095 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:51:17,097 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:51:17,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:51:17,101 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:51:17,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:51:14" (1/3) ... [2020-10-13 08:51:17,102 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a2a6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:51:17, skipping insertion in model container [2020-10-13 08:51:17,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:51:15" (2/3) ... [2020-10-13 08:51:17,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40a2a6e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:51:17, skipping insertion in model container [2020-10-13 08:51:17,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:51:17" (3/3) ... [2020-10-13 08:51:17,105 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label32.c [2020-10-13 08:51:17,119 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:51:17,128 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:51:17,146 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:51:17,176 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:51:17,177 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:51:17,177 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:51:17,177 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:51:17,177 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:51:17,178 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:51:17,178 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:51:17,178 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:51:17,205 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:51:17,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-13 08:51:17,216 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:17,218 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] [2020-10-13 08:51:17,218 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:17,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:17,227 INFO L82 PathProgramCache]: Analyzing trace with hash -1416126934, now seen corresponding path program 1 times [2020-10-13 08:51:17,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:17,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2108711278] [2020-10-13 08:51:17,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:17,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:17,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:17,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:17,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-13 08:51:17,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:17,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-13 08:51:17,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:17,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:51:17,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:51:17,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-13 08:51:17,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:51:17,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:18,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:18,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:18,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:18,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:18,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 08:51:18,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:18,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:18,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:51:18,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:51:18,068 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 08:51:18,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2108711278] [2020-10-13 08:51:18,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:51:18,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 08:51:18,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507120661] [2020-10-13 08:51:18,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 08:51:18,078 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:18,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 08:51:18,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 08:51:18,096 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-13 08:51:19,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:19,914 INFO L93 Difference]: Finished difference Result 698 states and 1240 transitions. [2020-10-13 08:51:19,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:51:19,916 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2020-10-13 08:51:19,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:19,948 INFO L225 Difference]: With dead ends: 698 [2020-10-13 08:51:19,948 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:51:19,960 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:51:19,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:51:20,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-13 08:51:20,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 08:51:20,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 552 transitions. [2020-10-13 08:51:20,043 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 552 transitions. Word has length 61 [2020-10-13 08:51:20,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:20,044 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 552 transitions. [2020-10-13 08:51:20,044 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 08:51:20,044 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 552 transitions. [2020-10-13 08:51:20,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-10-13 08:51:20,050 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:20,051 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, 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 08:51:20,051 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:51:20,051 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:20,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:20,052 INFO L82 PathProgramCache]: Analyzing trace with hash 1565672769, now seen corresponding path program 1 times [2020-10-13 08:51:20,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:20,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2145348016] [2020-10-13 08:51:20,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:20,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:20,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:20,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:20,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:21,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:21,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-13 08:51:21,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:51:21,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1106 [2020-10-13 08:51:21,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:51:21,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:51:21,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:51:21,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:21,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:21,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:21,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:21,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:21,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:21,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:51:21,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:21,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:21,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:21,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:21,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:21,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:21,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:51:21,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:21,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 08:51:21,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:21,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:21,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:51:21,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:21,452 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:51:21,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2145348016] [2020-10-13 08:51:21,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:21,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:51:21,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973901884] [2020-10-13 08:51:21,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:51:21,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:21,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:51:21,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:51:21,456 INFO L87 Difference]: Start difference. First operand 376 states and 552 transitions. Second operand 5 states. [2020-10-13 08:51:22,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:22,631 INFO L93 Difference]: Finished difference Result 783 states and 1143 transitions. [2020-10-13 08:51:22,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:51:22,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2020-10-13 08:51:22,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:22,635 INFO L225 Difference]: With dead ends: 783 [2020-10-13 08:51:22,636 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:51:22,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:51:22,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:51:22,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-13 08:51:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 08:51:22,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 506 transitions. [2020-10-13 08:51:22,663 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 506 transitions. Word has length 130 [2020-10-13 08:51:22,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:22,664 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 506 transitions. [2020-10-13 08:51:22,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:51:22,664 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 506 transitions. [2020-10-13 08:51:22,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 08:51:22,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:22,667 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, 1, 1, 1, 1, 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 08:51:22,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:51:22,667 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:22,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:22,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1114233993, now seen corresponding path program 1 times [2020-10-13 08:51:22,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:22,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [454004675] [2020-10-13 08:51:22,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:22,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:22,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:23,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:24,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:24,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 144 [2020-10-13 08:51:24,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:51:24,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1471 [2020-10-13 08:51:24,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:51:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:51:24,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 08:51:24,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:24,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:24,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:24,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:24,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:24,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:24,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:24,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:51:24,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:24,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:24,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:24,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:24,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:24,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:24,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:24,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:24,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:24,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:51:24,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:24,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 08:51:24,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:24,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:51:24,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:24,773 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:51:24,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [454004675] [2020-10-13 08:51:24,774 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:24,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:51:24,775 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415243061] [2020-10-13 08:51:24,775 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:51:24,776 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:24,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:51:24,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:51:24,776 INFO L87 Difference]: Start difference. First operand 376 states and 506 transitions. Second operand 8 states. [2020-10-13 08:51:26,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:26,256 INFO L93 Difference]: Finished difference Result 832 states and 1105 transitions. [2020-10-13 08:51:26,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:51:26,257 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 134 [2020-10-13 08:51:26,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:26,268 INFO L225 Difference]: With dead ends: 832 [2020-10-13 08:51:26,268 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:51:26,272 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:51:26,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:51:26,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 376. [2020-10-13 08:51:26,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-13 08:51:26,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 438 transitions. [2020-10-13 08:51:26,330 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 438 transitions. Word has length 134 [2020-10-13 08:51:26,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:26,331 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 438 transitions. [2020-10-13 08:51:26,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:51:26,331 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 438 transitions. [2020-10-13 08:51:26,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-10-13 08:51:26,343 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:26,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:26,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:51:26,347 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:26,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:26,347 INFO L82 PathProgramCache]: Analyzing trace with hash -2095799939, now seen corresponding path program 1 times [2020-10-13 08:51:26,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:26,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1407937678] [2020-10-13 08:51:26,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:26,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:26,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:27,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:28,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:28,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-13 08:51:28,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:51:28,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2289 [2020-10-13 08:51:28,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 189 [2020-10-13 08:51:28,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-13 08:51:28,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:28,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:28,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:28,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:28,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:28,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:28,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:51:28,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:28,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:28,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:28,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:28,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:28,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:28,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:28,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:28,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-13 08:51:28,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:28,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-13 08:51:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:29,129 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:51:29,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1407937678] [2020-10-13 08:51:29,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:29,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:51:29,133 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516694972] [2020-10-13 08:51:29,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:51:29,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:29,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:51:29,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:51:29,135 INFO L87 Difference]: Start difference. First operand 376 states and 438 transitions. Second operand 5 states. [2020-10-13 08:51:30,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:30,168 INFO L93 Difference]: Finished difference Result 934 states and 1117 transitions. [2020-10-13 08:51:30,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:51:30,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 240 [2020-10-13 08:51:30,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:30,173 INFO L225 Difference]: With dead ends: 934 [2020-10-13 08:51:30,174 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:51:30,175 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:51:30,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:51:30,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:51:30,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:51:30,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 665 transitions. [2020-10-13 08:51:30,202 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 665 transitions. Word has length 240 [2020-10-13 08:51:30,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:30,203 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 665 transitions. [2020-10-13 08:51:30,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:51:30,203 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 665 transitions. [2020-10-13 08:51:30,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2020-10-13 08:51:30,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:30,208 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:30,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:51:30,209 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:30,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:30,209 INFO L82 PathProgramCache]: Analyzing trace with hash 124621249, now seen corresponding path program 1 times [2020-10-13 08:51:30,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:30,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1992611141] [2020-10-13 08:51:30,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:30,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:30,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:30,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:31,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:35,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:35,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 326 [2020-10-13 08:51:35,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:51:35,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 08:51:35,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:35,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:35,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 265 [2020-10-13 08:51:35,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 08:51:35,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:35,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:35,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:35,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:35,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:35,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:35,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:51:35,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:35,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:35,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:35,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:35,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:35,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:35,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:35,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:35,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:35,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:35,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:35,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:51:35,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:35,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:35,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:35,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:35,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:35,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:51:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:35,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:35,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:35,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 08:51:35,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:35,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-13 08:51:35,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:35,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:35,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 08:51:35,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:35,810 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 08:51:35,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1992611141] [2020-10-13 08:51:35,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:35,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:51:35,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851287119] [2020-10-13 08:51:35,814 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:51:35,814 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:35,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:51:35,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:51:35,816 INFO L87 Difference]: Start difference. First operand 560 states and 665 transitions. Second operand 5 states. [2020-10-13 08:51:36,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:36,697 INFO L93 Difference]: Finished difference Result 1136 states and 1355 transitions. [2020-10-13 08:51:36,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:51:36,698 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 314 [2020-10-13 08:51:36,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:36,703 INFO L225 Difference]: With dead ends: 1136 [2020-10-13 08:51:36,704 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:51:36,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:51:36,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:51:36,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:51:36,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:51:36,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 663 transitions. [2020-10-13 08:51:36,734 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 663 transitions. Word has length 314 [2020-10-13 08:51:36,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:36,735 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 663 transitions. [2020-10-13 08:51:36,735 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:51:36,736 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 663 transitions. [2020-10-13 08:51:36,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-10-13 08:51:36,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:36,742 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:36,742 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:51:36,743 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:36,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:36,743 INFO L82 PathProgramCache]: Analyzing trace with hash -922781651, now seen corresponding path program 1 times [2020-10-13 08:51:36,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:36,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567660074] [2020-10-13 08:51:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:36,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:36,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:37,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:39,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:40,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:41,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:41,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 332 [2020-10-13 08:51:41,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:51:41,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-13 08:51:41,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-13 08:51:41,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 08:51:41,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:41,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:41,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:41,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:41,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:41,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:41,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:41,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:51:41,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:41,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:41,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:41,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:41,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:41,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:42,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:42,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:42,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:42,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:51:42,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:42,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:42,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:42,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:42,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:42,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:51:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:42,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:42,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:42,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 08:51:42,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:42,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-13 08:51:42,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:42,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 08:51:42,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:42,281 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-13 08:51:42,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567660074] [2020-10-13 08:51:42,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:42,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:51:42,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209014597] [2020-10-13 08:51:42,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:51:42,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:42,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:51:42,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:51:42,285 INFO L87 Difference]: Start difference. First operand 560 states and 663 transitions. Second operand 5 states. [2020-10-13 08:51:43,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:43,377 INFO L93 Difference]: Finished difference Result 1149 states and 1364 transitions. [2020-10-13 08:51:43,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:51:43,378 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 320 [2020-10-13 08:51:43,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:43,383 INFO L225 Difference]: With dead ends: 1149 [2020-10-13 08:51:43,384 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:51:43,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 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 08:51:43,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:51:43,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:51:43,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:51:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 661 transitions. [2020-10-13 08:51:43,411 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 661 transitions. Word has length 320 [2020-10-13 08:51:43,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:43,412 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 661 transitions. [2020-10-13 08:51:43,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:51:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 661 transitions. [2020-10-13 08:51:43,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2020-10-13 08:51:43,423 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:43,424 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:43,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:51:43,425 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:43,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:43,425 INFO L82 PathProgramCache]: Analyzing trace with hash 2142185610, now seen corresponding path program 1 times [2020-10-13 08:51:43,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:43,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1973004187] [2020-10-13 08:51:43,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:43,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:43,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:43,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:43,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:44,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:47,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:48,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:48,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-10-13 08:51:48,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:51:48,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-13 08:51:48,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:48,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:48,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-13 08:51:48,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 08:51:48,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:48,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:48,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:48,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:48,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:48,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:48,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:51:48,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:48,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:48,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:48,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:51:48,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:48,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:48,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:48,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:48,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:48,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:48,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:51:48,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:48,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:48,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:51:48,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:51:48,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:48,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:48,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:48,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:51:48,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:48,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 08:51:48,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:48,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:48,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:48,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:51:48,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:48,908 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-13 08:51:48,909 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1973004187] [2020-10-13 08:51:48,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:48,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:51:48,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080086718] [2020-10-13 08:51:48,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:51:48,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:48,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:51:48,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:51:48,912 INFO L87 Difference]: Start difference. First operand 560 states and 661 transitions. Second operand 5 states. [2020-10-13 08:51:49,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:49,671 INFO L93 Difference]: Finished difference Result 1130 states and 1341 transitions. [2020-10-13 08:51:49,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:51:49,672 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 323 [2020-10-13 08:51:49,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:49,676 INFO L225 Difference]: With dead ends: 1130 [2020-10-13 08:51:49,676 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:51:49,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:51:49,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:51:49,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:51:49,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:51:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 659 transitions. [2020-10-13 08:51:49,700 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 659 transitions. Word has length 323 [2020-10-13 08:51:49,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:49,700 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 659 transitions. [2020-10-13 08:51:49,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:51:49,701 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 659 transitions. [2020-10-13 08:51:49,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2020-10-13 08:51:49,705 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:49,706 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:49,706 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:51:49,706 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:49,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:49,707 INFO L82 PathProgramCache]: Analyzing trace with hash -1258133863, now seen corresponding path program 1 times [2020-10-13 08:51:49,707 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:49,707 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1840599792] [2020-10-13 08:51:49,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:49,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:50,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:50,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:51,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:54,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:54,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 338 [2020-10-13 08:51:54,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:51:54,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4875 [2020-10-13 08:51:54,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:51:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 277 [2020-10-13 08:51:54,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 08:51:54,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:54,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:55,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:55,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:55,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:55,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:55,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:51:55,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:55,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:55,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:55,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:55,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:55,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:55,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:55,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:55,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:55,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:55,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-13 08:51:55,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:55,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:55,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:55,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:51:55,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:55,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:55,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:55,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:51:55,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:55,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:51:55,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:55,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:55,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:55,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 08:51:55,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:55,316 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-10-13 08:51:55,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1840599792] [2020-10-13 08:51:55,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:51:55,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:51:55,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161479221] [2020-10-13 08:51:55,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:51:55,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:51:55,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:51:55,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:51:55,318 INFO L87 Difference]: Start difference. First operand 560 states and 659 transitions. Second operand 8 states. [2020-10-13 08:51:56,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:51:56,317 INFO L93 Difference]: Finished difference Result 1169 states and 1376 transitions. [2020-10-13 08:51:56,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:51:56,318 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 326 [2020-10-13 08:51:56,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:51:56,322 INFO L225 Difference]: With dead ends: 1169 [2020-10-13 08:51:56,322 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:51:56,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:51:56,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:51:56,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:51:56,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:51:56,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 655 transitions. [2020-10-13 08:51:56,341 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 655 transitions. Word has length 326 [2020-10-13 08:51:56,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:51:56,342 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 655 transitions. [2020-10-13 08:51:56,342 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:51:56,342 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 655 transitions. [2020-10-13 08:51:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-10-13 08:51:56,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:51:56,345 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:51:56,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:51:56,345 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:51:56,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:51:56,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1534042875, now seen corresponding path program 1 times [2020-10-13 08:51:56,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:51:56,346 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881348376] [2020-10-13 08:51:56,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:51:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:56,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:56,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:56,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:58,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:59,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:59,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 344 [2020-10-13 08:51:59,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:51:59,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3371 [2020-10-13 08:51:59,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:59,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:51:59,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 283 [2020-10-13 08:51:59,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 08:51:59,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:59,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:51:59,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:59,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:59,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:59,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:51:59,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:59,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:51:59,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:59,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:59,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:59,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:59,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:51:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:59,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:59,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:59,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:51:59,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:59,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-13 08:51:59,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:59,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:51:59,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:59,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:51:59,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:51:59,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:51:59,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:51:59,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:51:59,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:51:59,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 08:51:59,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:51:59,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 08:51:59,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:51:59,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:51:59,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:51:59,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:51:59,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:00,057 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-10-13 08:52:00,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881348376] [2020-10-13 08:52:00,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:00,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:52:00,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442775395] [2020-10-13 08:52:00,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:52:00,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:00,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:52:00,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:52:00,060 INFO L87 Difference]: Start difference. First operand 560 states and 655 transitions. Second operand 5 states. [2020-10-13 08:52:00,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:00,839 INFO L93 Difference]: Finished difference Result 1133 states and 1332 transitions. [2020-10-13 08:52:00,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:52:00,841 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 332 [2020-10-13 08:52:00,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:00,845 INFO L225 Difference]: With dead ends: 1133 [2020-10-13 08:52:00,845 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:52:00,847 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:52:00,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:52:00,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:52:00,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:52:00,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 653 transitions. [2020-10-13 08:52:00,865 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 653 transitions. Word has length 332 [2020-10-13 08:52:00,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:00,866 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 653 transitions. [2020-10-13 08:52:00,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:52:00,866 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 653 transitions. [2020-10-13 08:52:00,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-10-13 08:52:00,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:00,869 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:52:00,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:52:00,870 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:00,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:00,870 INFO L82 PathProgramCache]: Analyzing trace with hash -256557271, now seen corresponding path program 1 times [2020-10-13 08:52:00,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:00,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1846553913] [2020-10-13 08:52:00,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:00,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:00,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:01,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:01,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:02,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:03,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:03,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 346 [2020-10-13 08:52:03,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:52:03,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2234 [2020-10-13 08:52:03,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:03,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:52:03,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 285 [2020-10-13 08:52:03,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 08:52:03,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:03,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:52:03,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:03,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:03,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:03,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:52:03,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:03,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:52:03,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:03,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:03,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:03,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:03,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:03,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:52:03,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:03,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:03,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:03,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:52:03,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:03,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:52:03,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:03,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:03,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:03,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:03,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:52:03,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:03,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:03,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:03,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:52:03,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:03,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-13 08:52:03,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:03,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:52:03,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:03,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:52:03,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-10-13 08:52:03,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1846553913] [2020-10-13 08:52:03,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:03,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:52:03,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153745891] [2020-10-13 08:52:03,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:52:03,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:03,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:52:03,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:52:03,439 INFO L87 Difference]: Start difference. First operand 560 states and 653 transitions. Second operand 5 states. [2020-10-13 08:52:04,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:04,153 INFO L93 Difference]: Finished difference Result 1143 states and 1338 transitions. [2020-10-13 08:52:04,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:52:04,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 334 [2020-10-13 08:52:04,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:04,164 INFO L225 Difference]: With dead ends: 1143 [2020-10-13 08:52:04,164 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:52:04,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:52:04,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:52:04,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:52:04,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:52:04,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 651 transitions. [2020-10-13 08:52:04,181 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 651 transitions. Word has length 334 [2020-10-13 08:52:04,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:04,182 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 651 transitions. [2020-10-13 08:52:04,182 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:52:04,182 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 651 transitions. [2020-10-13 08:52:04,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-10-13 08:52:04,184 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:04,185 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:52:04,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:52:04,185 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:04,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:04,186 INFO L82 PathProgramCache]: Analyzing trace with hash -620719390, now seen corresponding path program 1 times [2020-10-13 08:52:04,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:04,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1508973681] [2020-10-13 08:52:04,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:04,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:04,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:04,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:04,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:05,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:08,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:09,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:09,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 347 [2020-10-13 08:52:09,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:52:09,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-13 08:52:09,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:52:09,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 286 [2020-10-13 08:52:09,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 08:52:09,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:09,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:52:09,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:09,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:09,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:09,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:52:09,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:09,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:52:09,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:09,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:09,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:09,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:52:09,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:09,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:09,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:09,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:52:09,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:09,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:52:09,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:09,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:09,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:09,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:09,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:09,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:52:09,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:09,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:09,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:09,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 08:52:09,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:09,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:52:09,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:52:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:09,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 08:52:09,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:09,521 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-10-13 08:52:09,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1508973681] [2020-10-13 08:52:09,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:09,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:52:09,523 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89377517] [2020-10-13 08:52:09,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:52:09,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:09,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:52:09,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:52:09,524 INFO L87 Difference]: Start difference. First operand 560 states and 651 transitions. Second operand 5 states. [2020-10-13 08:52:10,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:10,264 INFO L93 Difference]: Finished difference Result 1131 states and 1322 transitions. [2020-10-13 08:52:10,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:52:10,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 335 [2020-10-13 08:52:10,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:10,273 INFO L225 Difference]: With dead ends: 1131 [2020-10-13 08:52:10,273 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:52:10,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:52:10,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:52:10,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:52:10,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:52:10,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 649 transitions. [2020-10-13 08:52:10,292 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 649 transitions. Word has length 335 [2020-10-13 08:52:10,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:10,293 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 649 transitions. [2020-10-13 08:52:10,293 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:52:10,293 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 649 transitions. [2020-10-13 08:52:10,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-10-13 08:52:10,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:10,296 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:52:10,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:52:10,296 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:10,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:10,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1282225238, now seen corresponding path program 1 times [2020-10-13 08:52:10,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:10,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185680633] [2020-10-13 08:52:10,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:10,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:10,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:10,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:12,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:13,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:13,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-10-13 08:52:13,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:52:13,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2988 [2020-10-13 08:52:13,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:13,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:52:13,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 290 [2020-10-13 08:52:13,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:52:13,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:13,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:52:13,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:13,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:13,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:13,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:52:13,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:13,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:52:13,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:13,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:13,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:13,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:52:13,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:13,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:13,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:13,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:52:13,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:13,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 08:52:13,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:13,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:13,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:13,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:13,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:13,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:52:13,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:13,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:13,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:13,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:52:13,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:13,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 08:52:13,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:52:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:13,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 08:52:13,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:13,650 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2020-10-13 08:52:13,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185680633] [2020-10-13 08:52:13,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:13,651 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:52:13,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241015741] [2020-10-13 08:52:13,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:52:13,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:13,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:52:13,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:52:13,652 INFO L87 Difference]: Start difference. First operand 560 states and 649 transitions. Second operand 5 states. [2020-10-13 08:52:14,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:14,354 INFO L93 Difference]: Finished difference Result 1141 states and 1328 transitions. [2020-10-13 08:52:14,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:52:14,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 339 [2020-10-13 08:52:14,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:14,358 INFO L225 Difference]: With dead ends: 1141 [2020-10-13 08:52:14,359 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:52:14,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:52:14,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:52:14,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:52:14,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:52:14,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 647 transitions. [2020-10-13 08:52:14,376 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 647 transitions. Word has length 339 [2020-10-13 08:52:14,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:14,377 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 647 transitions. [2020-10-13 08:52:14,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:52:14,377 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 647 transitions. [2020-10-13 08:52:14,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-10-13 08:52:14,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:14,380 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:52:14,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:52:14,380 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:14,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:14,381 INFO L82 PathProgramCache]: Analyzing trace with hash -987546610, now seen corresponding path program 1 times [2020-10-13 08:52:14,381 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:14,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1598569496] [2020-10-13 08:52:14,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:14,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:14,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:15,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:15,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:17,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:17,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-10-13 08:52:17,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:52:17,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2643 [2020-10-13 08:52:17,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:17,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:52:17,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 292 [2020-10-13 08:52:17,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 08:52:17,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:17,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:52:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:17,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:17,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:17,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:52:17,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:17,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:52:17,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:17,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:17,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:17,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:17,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:17,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:52:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:17,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:17,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:17,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:52:17,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:17,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 08:52:17,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:17,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:17,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:17,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:17,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:17,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:52:17,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:17,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:17,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:17,348 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 08:52:17,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:17,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-13 08:52:17,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:17,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:52:17,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:17,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 08:52:17,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:17,451 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-13 08:52:17,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1598569496] [2020-10-13 08:52:17,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:17,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:52:17,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149087903] [2020-10-13 08:52:17,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:52:17,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:17,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:52:17,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:52:17,453 INFO L87 Difference]: Start difference. First operand 560 states and 647 transitions. Second operand 5 states. [2020-10-13 08:52:18,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:18,238 INFO L93 Difference]: Finished difference Result 1145 states and 1328 transitions. [2020-10-13 08:52:18,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:52:18,239 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 341 [2020-10-13 08:52:18,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:18,242 INFO L225 Difference]: With dead ends: 1145 [2020-10-13 08:52:18,242 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:52:18,244 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:52:18,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:52:18,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:52:18,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:52:18,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 645 transitions. [2020-10-13 08:52:18,258 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 645 transitions. Word has length 341 [2020-10-13 08:52:18,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:18,259 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 645 transitions. [2020-10-13 08:52:18,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:52:18,259 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 645 transitions. [2020-10-13 08:52:18,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-10-13 08:52:18,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:18,262 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:52:18,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:52:18,262 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:18,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:18,263 INFO L82 PathProgramCache]: Analyzing trace with hash -382377507, now seen corresponding path program 1 times [2020-10-13 08:52:18,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:18,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1997517996] [2020-10-13 08:52:18,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:18,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:18,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:18,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:19,130 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:19,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:20,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:20,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 356 [2020-10-13 08:52:20,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:52:20,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2247 [2020-10-13 08:52:20,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:52:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-13 08:52:20,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 08:52:20,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:20,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:52:20,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:20,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:20,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:20,648 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:52:20,648 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:20,648 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:52:20,648 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:20,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:20,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:20,649 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:20,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:52:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:20,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:20,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:20,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:52:20,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:20,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:52:20,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:20,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:20,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:20,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:20,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:20,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:52:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:20,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:20,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:20,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 08:52:20,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:20,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:52:20,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:52:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:20,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 08:52:20,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:20,873 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-13 08:52:20,874 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1997517996] [2020-10-13 08:52:20,874 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:20,874 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:52:20,874 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146316732] [2020-10-13 08:52:20,875 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:52:20,875 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:20,875 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:52:20,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:52:20,875 INFO L87 Difference]: Start difference. First operand 560 states and 645 transitions. Second operand 5 states. [2020-10-13 08:52:21,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:21,650 INFO L93 Difference]: Finished difference Result 1144 states and 1323 transitions. [2020-10-13 08:52:21,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:52:21,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 344 [2020-10-13 08:52:21,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:21,654 INFO L225 Difference]: With dead ends: 1144 [2020-10-13 08:52:21,654 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:52:21,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:52:21,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:52:21,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:52:21,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:52:21,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 643 transitions. [2020-10-13 08:52:21,671 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 643 transitions. Word has length 344 [2020-10-13 08:52:21,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:21,671 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 643 transitions. [2020-10-13 08:52:21,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:52:21,672 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 643 transitions. [2020-10-13 08:52:21,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2020-10-13 08:52:21,674 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:21,674 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:52:21,675 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:52:21,675 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:21,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:21,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1897085738, now seen corresponding path program 1 times [2020-10-13 08:52:21,675 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:21,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318651445] [2020-10-13 08:52:21,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:21,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:21,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:22,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:23,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:23,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:26,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:26,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 357 [2020-10-13 08:52:26,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:52:26,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 08:52:26,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:52:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 296 [2020-10-13 08:52:26,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 08:52:26,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:26,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:52:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:26,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:26,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:26,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:52:26,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:26,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:52:26,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:26,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:26,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:26,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:26,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:26,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:52:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:26,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:26,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:26,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:52:26,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:26,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-13 08:52:26,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:26,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:26,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:26,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:52:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:26,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:26,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:26,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:52:26,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:26,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-13 08:52:26,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:52:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:26,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:52:26,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:27,077 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-10-13 08:52:27,077 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318651445] [2020-10-13 08:52:27,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:27,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:52:27,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43898435] [2020-10-13 08:52:27,078 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:52:27,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:27,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:52:27,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:52:27,079 INFO L87 Difference]: Start difference. First operand 560 states and 643 transitions. Second operand 8 states. [2020-10-13 08:52:27,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:27,985 INFO L93 Difference]: Finished difference Result 1168 states and 1349 transitions. [2020-10-13 08:52:27,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:52:27,986 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 345 [2020-10-13 08:52:27,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:27,988 INFO L225 Difference]: With dead ends: 1168 [2020-10-13 08:52:27,989 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:52:27,991 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:52:27,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:52:28,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:52:28,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:52:28,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 639 transitions. [2020-10-13 08:52:28,005 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 639 transitions. Word has length 345 [2020-10-13 08:52:28,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:28,005 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 639 transitions. [2020-10-13 08:52:28,005 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:52:28,005 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 639 transitions. [2020-10-13 08:52:28,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2020-10-13 08:52:28,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:28,009 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 08:52:28,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:52:28,009 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:28,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:28,009 INFO L82 PathProgramCache]: Analyzing trace with hash -74533374, now seen corresponding path program 1 times [2020-10-13 08:52:28,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:28,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094113442] [2020-10-13 08:52:28,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:28,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:28,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:28,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:28,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:29,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:30,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:32,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:32,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 363 [2020-10-13 08:52:32,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:52:32,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4741 [2020-10-13 08:52:32,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:32,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:52:32,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 302 [2020-10-13 08:52:32,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 08:52:32,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:32,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:52:32,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:32,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:32,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:32,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:52:32,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:32,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:52:32,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:32,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:32,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:32,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:52:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:32,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:32,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:32,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:52:32,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:32,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:52:32,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:32,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:32,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:32,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:32,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:32,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:52:32,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:33,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:33,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:33,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 08:52:33,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:33,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-13 08:52:33,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:33,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:52:33,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:33,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 08:52:33,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:33,177 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-10-13 08:52:33,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094113442] [2020-10-13 08:52:33,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:33,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:52:33,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165059306] [2020-10-13 08:52:33,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:52:33,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:33,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:52:33,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:52:33,180 INFO L87 Difference]: Start difference. First operand 560 states and 639 transitions. Second operand 5 states. [2020-10-13 08:52:33,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:33,884 INFO L93 Difference]: Finished difference Result 1150 states and 1317 transitions. [2020-10-13 08:52:33,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:52:33,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 351 [2020-10-13 08:52:33,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:33,889 INFO L225 Difference]: With dead ends: 1150 [2020-10-13 08:52:33,889 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:52:33,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:52:33,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:52:33,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:52:33,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:52:33,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 637 transitions. [2020-10-13 08:52:33,908 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 637 transitions. Word has length 351 [2020-10-13 08:52:33,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:33,909 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 637 transitions. [2020-10-13 08:52:33,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:52:33,909 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 637 transitions. [2020-10-13 08:52:33,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 360 [2020-10-13 08:52:33,911 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:33,912 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:52:33,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:52:33,912 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:33,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:33,913 INFO L82 PathProgramCache]: Analyzing trace with hash -742717550, now seen corresponding path program 1 times [2020-10-13 08:52:33,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:33,913 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560765357] [2020-10-13 08:52:33,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:33,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:34,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:34,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:35,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:38,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:38,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 371 [2020-10-13 08:52:38,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:52:38,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-13 08:52:38,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:38,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:52:38,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 310 [2020-10-13 08:52:38,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-13 08:52:38,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:39,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:52:39,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:39,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:39,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:39,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:52:39,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:39,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:52:39,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:39,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:39,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:39,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:39,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:39,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:52:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:39,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:39,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:39,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:52:39,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:39,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:52:39,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:39,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:39,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:39,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:39,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:39,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:52:39,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:39,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:39,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:39,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:52:39,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:39,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 08:52:39,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:39,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:52:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:39,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 08:52:39,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:39,252 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-13 08:52:39,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560765357] [2020-10-13 08:52:39,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:39,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:52:39,253 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252526049] [2020-10-13 08:52:39,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:52:39,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:39,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:52:39,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:52:39,255 INFO L87 Difference]: Start difference. First operand 560 states and 637 transitions. Second operand 5 states. [2020-10-13 08:52:40,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:40,202 INFO L93 Difference]: Finished difference Result 750 states and 871 transitions. [2020-10-13 08:52:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:52:40,203 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 359 [2020-10-13 08:52:40,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:40,207 INFO L225 Difference]: With dead ends: 750 [2020-10-13 08:52:40,207 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:52:40,209 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:52:40,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:52:40,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:52:40,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:52:40,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 862 transitions. [2020-10-13 08:52:40,253 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 862 transitions. Word has length 359 [2020-10-13 08:52:40,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:40,253 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 862 transitions. [2020-10-13 08:52:40,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:52:40,254 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 862 transitions. [2020-10-13 08:52:40,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-13 08:52:40,260 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:40,261 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:52:40,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:52:40,261 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:40,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:40,262 INFO L82 PathProgramCache]: Analyzing trace with hash 874535302, now seen corresponding path program 1 times [2020-10-13 08:52:40,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:40,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1360444789] [2020-10-13 08:52:40,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:40,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:40,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:40,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:42,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:43,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:43,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 381 [2020-10-13 08:52:43,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:52:43,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3456 [2020-10-13 08:52:43,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:52:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 320 [2020-10-13 08:52:43,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 08:52:43,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:43,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:52:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:43,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:43,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:43,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:52:43,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:43,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:52:43,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:43,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:43,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:43,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:43,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:43,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:52:43,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:43,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:43,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:43,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:52:43,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:43,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-13 08:52:43,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:43,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:43,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:43,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:52:43,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:43,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:44,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:44,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 08:52:44,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:44,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-13 08:52:44,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:44,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:52:44,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:44,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 08:52:44,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:44,170 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-13 08:52:44,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1360444789] [2020-10-13 08:52:44,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:44,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:52:44,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668915942] [2020-10-13 08:52:44,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:52:44,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:44,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:52:44,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:52:44,172 INFO L87 Difference]: Start difference. First operand 744 states and 862 transitions. Second operand 5 states. [2020-10-13 08:52:44,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:44,925 INFO L93 Difference]: Finished difference Result 1500 states and 1747 transitions. [2020-10-13 08:52:44,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:52:44,926 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 369 [2020-10-13 08:52:44,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:44,929 INFO L225 Difference]: With dead ends: 1500 [2020-10-13 08:52:44,929 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:52:44,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:52:44,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:52:44,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:52:44,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:52:44,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 859 transitions. [2020-10-13 08:52:44,947 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 859 transitions. Word has length 369 [2020-10-13 08:52:44,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:44,947 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 859 transitions. [2020-10-13 08:52:44,947 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:52:44,947 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 859 transitions. [2020-10-13 08:52:44,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-10-13 08:52:44,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:44,951 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:52:44,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:52:44,951 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:44,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:44,952 INFO L82 PathProgramCache]: Analyzing trace with hash 825021065, now seen corresponding path program 1 times [2020-10-13 08:52:44,952 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:44,952 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2124935058] [2020-10-13 08:52:44,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:44,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:45,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:45,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:45,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:46,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:47,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:50,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:50,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 394 [2020-10-13 08:52:50,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:52:50,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-13 08:52:50,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:50,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:52:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 333 [2020-10-13 08:52:50,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 08:52:50,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:50,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:52:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:50,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:50,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:50,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:52:50,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:50,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:52:50,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:50,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:50,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:50,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:50,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:50,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:52:50,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:50,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:50,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:50,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:52:50,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:50,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:52:50,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:50,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:50,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:52:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:50,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:50,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:50,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:52:50,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:50,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 08:52:50,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:50,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:52:50,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:50,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-13 08:52:50,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:50,324 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2020-10-13 08:52:50,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2124935058] [2020-10-13 08:52:50,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:50,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:52:50,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667210725] [2020-10-13 08:52:50,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:52:50,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:50,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:52:50,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:52:50,327 INFO L87 Difference]: Start difference. First operand 744 states and 859 transitions. Second operand 5 states. [2020-10-13 08:52:51,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:51,071 INFO L93 Difference]: Finished difference Result 1506 states and 1747 transitions. [2020-10-13 08:52:51,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:52:51,072 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 382 [2020-10-13 08:52:51,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:51,075 INFO L225 Difference]: With dead ends: 1506 [2020-10-13 08:52:51,075 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:52:51,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:52:51,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:52:51,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:52:51,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:52:51,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 856 transitions. [2020-10-13 08:52:51,093 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 856 transitions. Word has length 382 [2020-10-13 08:52:51,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:51,094 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 856 transitions. [2020-10-13 08:52:51,094 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:52:51,094 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 856 transitions. [2020-10-13 08:52:51,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-10-13 08:52:51,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:51,097 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:52:51,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:52:51,098 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:51,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:51,098 INFO L82 PathProgramCache]: Analyzing trace with hash -770748974, now seen corresponding path program 1 times [2020-10-13 08:52:51,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:51,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [247543819] [2020-10-13 08:52:51,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:51,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:51,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:51,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:51,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:55,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:56,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:56,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 403 [2020-10-13 08:52:56,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:52:56,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-13 08:52:56,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:56,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:52:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 342 [2020-10-13 08:52:56,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:52:56,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:56,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:52:56,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:56,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:56,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:56,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:52:56,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:56,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:52:56,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:56,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:56,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:56,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:52:56,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:56,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:56,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:56,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:52:56,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:56,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-13 08:52:56,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:56,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:52:56,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:56,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:52:56,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:56,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:52:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:56,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:56,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:52:56,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:52:56,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:52:56,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 08:52:56,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:52:56,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:52:56,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:52:56,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-13 08:52:56,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:52:56,579 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-10-13 08:52:56,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [247543819] [2020-10-13 08:52:56,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:52:56,581 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:52:56,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743977961] [2020-10-13 08:52:56,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:52:56,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:52:56,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:52:56,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:52:56,583 INFO L87 Difference]: Start difference. First operand 744 states and 856 transitions. Second operand 5 states. [2020-10-13 08:52:57,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:52:57,454 INFO L93 Difference]: Finished difference Result 1496 states and 1731 transitions. [2020-10-13 08:52:57,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:52:57,455 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 391 [2020-10-13 08:52:57,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:52:57,457 INFO L225 Difference]: With dead ends: 1496 [2020-10-13 08:52:57,458 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:52:57,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:52:57,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:52:57,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:52:57,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:52:57,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 853 transitions. [2020-10-13 08:52:57,480 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 853 transitions. Word has length 391 [2020-10-13 08:52:57,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:52:57,481 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 853 transitions. [2020-10-13 08:52:57,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:52:57,481 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 853 transitions. [2020-10-13 08:52:57,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-10-13 08:52:57,484 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:52:57,485 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:52:57,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:52:57,485 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:52:57,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:52:57,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1387041226, now seen corresponding path program 1 times [2020-10-13 08:52:57,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:52:57,486 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283496305] [2020-10-13 08:52:57,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:52:57,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:52:57,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:57,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:52:57,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:00,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:00,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:02,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:02,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 405 [2020-10-13 08:53:02,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:53:02,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-13 08:53:02,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:02,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:53:02,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 344 [2020-10-13 08:53:02,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 08:53:02,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:02,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:53:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:02,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:02,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:02,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:53:02,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:02,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:53:02,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:02,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:02,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:02,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:02,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:02,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:53:02,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:02,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:02,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:02,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:53:02,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:02,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-13 08:53:02,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:02,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:02,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:02,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:02,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:02,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:53:02,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:02,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:02,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:02,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:53:02,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:02,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 08:53:02,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:53:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:02,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-13 08:53:02,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:03,187 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2020-10-13 08:53:03,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283496305] [2020-10-13 08:53:03,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:53:03,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:53:03,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485529562] [2020-10-13 08:53:03,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:53:03,190 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:53:03,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:53:03,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:53:03,190 INFO L87 Difference]: Start difference. First operand 744 states and 853 transitions. Second operand 5 states. [2020-10-13 08:53:03,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:53:03,977 INFO L93 Difference]: Finished difference Result 1516 states and 1745 transitions. [2020-10-13 08:53:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:53:03,977 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 393 [2020-10-13 08:53:03,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:53:03,981 INFO L225 Difference]: With dead ends: 1516 [2020-10-13 08:53:03,981 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:53:03,982 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:53:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:53:03,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:53:03,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:53:03,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 850 transitions. [2020-10-13 08:53:03,998 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 850 transitions. Word has length 393 [2020-10-13 08:53:03,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:53:03,998 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 850 transitions. [2020-10-13 08:53:03,998 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:53:03,998 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 850 transitions. [2020-10-13 08:53:04,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2020-10-13 08:53:04,001 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:53:04,002 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:53:04,002 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:53:04,002 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:53:04,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:53:04,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1704671090, now seen corresponding path program 1 times [2020-10-13 08:53:04,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:53:04,003 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315625799] [2020-10-13 08:53:04,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:53:04,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:04,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:04,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:04,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:05,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:09,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:09,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 417 [2020-10-13 08:53:09,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:53:09,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-13 08:53:09,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:09,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:53:09,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-13 08:53:09,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:53:09,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:09,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:53:09,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:09,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:09,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:09,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:53:09,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:09,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:53:09,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:09,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:09,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:09,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:09,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:09,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:53:09,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:09,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:09,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:09,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:53:09,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:09,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-13 08:53:09,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:09,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:09,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:09,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:09,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:09,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:53:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:09,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:09,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:09,473 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 08:53:09,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:09,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-13 08:53:09,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:09,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:53:09,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:09,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:53:09,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:09,653 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2020-10-13 08:53:09,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315625799] [2020-10-13 08:53:09,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:53:09,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:53:09,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661438439] [2020-10-13 08:53:09,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:53:09,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:53:09,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:53:09,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:53:09,656 INFO L87 Difference]: Start difference. First operand 744 states and 850 transitions. Second operand 5 states. [2020-10-13 08:53:10,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:53:10,380 INFO L93 Difference]: Finished difference Result 1497 states and 1720 transitions. [2020-10-13 08:53:10,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:53:10,384 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 405 [2020-10-13 08:53:10,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:53:10,387 INFO L225 Difference]: With dead ends: 1497 [2020-10-13 08:53:10,387 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:53:10,389 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:53:10,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:53:10,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:53:10,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:53:10,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 847 transitions. [2020-10-13 08:53:10,404 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 847 transitions. Word has length 405 [2020-10-13 08:53:10,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:53:10,405 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 847 transitions. [2020-10-13 08:53:10,405 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:53:10,405 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 847 transitions. [2020-10-13 08:53:10,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2020-10-13 08:53:10,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:53:10,408 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:53:10,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:53:10,408 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:53:10,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:53:10,409 INFO L82 PathProgramCache]: Analyzing trace with hash 87839062, now seen corresponding path program 1 times [2020-10-13 08:53:10,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:53:10,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721755361] [2020-10-13 08:53:10,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:53:10,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:10,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:10,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:11,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:15,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:15,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:15,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:15,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 421 [2020-10-13 08:53:15,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:53:15,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 08:53:15,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:15,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:53:15,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 360 [2020-10-13 08:53:15,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 08:53:15,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:15,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:53:15,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:15,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:15,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:15,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:53:15,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:15,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:53:15,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:15,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:15,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:15,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:15,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:15,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:53:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:15,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:15,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:15,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:53:15,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:15,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-13 08:53:15,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:15,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:15,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:15,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:15,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:53:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:15,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:15,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:15,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 08:53:15,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:15,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 08:53:15,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:53:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:15,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-13 08:53:15,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:15,896 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 166 trivial. 0 not checked. [2020-10-13 08:53:15,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [721755361] [2020-10-13 08:53:15,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:53:15,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:53:15,903 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267808386] [2020-10-13 08:53:15,904 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:53:15,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:53:15,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:53:15,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:53:15,904 INFO L87 Difference]: Start difference. First operand 744 states and 847 transitions. Second operand 5 states. [2020-10-13 08:53:16,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:53:16,642 INFO L93 Difference]: Finished difference Result 1508 states and 1725 transitions. [2020-10-13 08:53:16,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:53:16,643 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 409 [2020-10-13 08:53:16,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:53:16,646 INFO L225 Difference]: With dead ends: 1508 [2020-10-13 08:53:16,646 INFO L226 Difference]: Without dead ends: 748 [2020-10-13 08:53:16,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:53:16,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2020-10-13 08:53:16,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 744. [2020-10-13 08:53:16,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2020-10-13 08:53:16,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 844 transitions. [2020-10-13 08:53:16,664 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 844 transitions. Word has length 409 [2020-10-13 08:53:16,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:53:16,664 INFO L479 AbstractCegarLoop]: Abstraction has 744 states and 844 transitions. [2020-10-13 08:53:16,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:53:16,664 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 844 transitions. [2020-10-13 08:53:16,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2020-10-13 08:53:16,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:53:16,668 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:53:16,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 08:53:16,668 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:53:16,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:53:16,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1381307045, now seen corresponding path program 1 times [2020-10-13 08:53:16,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:53:16,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1974347640] [2020-10-13 08:53:16,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:53:16,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:16,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:16,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:17,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:19,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:21,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:21,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 424 [2020-10-13 08:53:21,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:53:21,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 08:53:21,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:21,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:53:21,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 363 [2020-10-13 08:53:21,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-13 08:53:21,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:21,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:53:21,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:21,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:21,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:21,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:53:21,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:21,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:53:21,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:21,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:21,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:21,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:53:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:21,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:21,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:21,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:53:21,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:21,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-13 08:53:21,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:21,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:21,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:21,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:21,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:21,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:53:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:21,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:21,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:21,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 08:53:21,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:21,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 08:53:21,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:21,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:53:21,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:21,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-13 08:53:21,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:22,072 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2020-10-13 08:53:22,072 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1974347640] [2020-10-13 08:53:22,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:53:22,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:53:22,073 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6670828] [2020-10-13 08:53:22,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:53:22,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:53:22,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:53:22,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:53:22,074 INFO L87 Difference]: Start difference. First operand 744 states and 844 transitions. Second operand 5 states. [2020-10-13 08:53:23,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:53:23,143 INFO L93 Difference]: Finished difference Result 1670 states and 1912 transitions. [2020-10-13 08:53:23,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:53:23,147 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 412 [2020-10-13 08:53:23,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:53:23,150 INFO L225 Difference]: With dead ends: 1670 [2020-10-13 08:53:23,151 INFO L226 Difference]: Without dead ends: 932 [2020-10-13 08:53:23,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:53:23,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2020-10-13 08:53:23,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 928. [2020-10-13 08:53:23,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 928 states. [2020-10-13 08:53:23,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 928 states to 928 states and 1035 transitions. [2020-10-13 08:53:23,168 INFO L78 Accepts]: Start accepts. Automaton has 928 states and 1035 transitions. Word has length 412 [2020-10-13 08:53:23,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:53:23,169 INFO L479 AbstractCegarLoop]: Abstraction has 928 states and 1035 transitions. [2020-10-13 08:53:23,169 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:53:23,169 INFO L276 IsEmpty]: Start isEmpty. Operand 928 states and 1035 transitions. [2020-10-13 08:53:23,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2020-10-13 08:53:23,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:53:23,172 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 08:53:23,173 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 08:53:23,173 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:53:23,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:53:23,173 INFO L82 PathProgramCache]: Analyzing trace with hash 227397905, now seen corresponding path program 1 times [2020-10-13 08:53:23,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:53:23,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2056416602] [2020-10-13 08:53:23,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:53:23,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:23,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:23,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:23,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:25,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:25,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:28,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:28,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 430 [2020-10-13 08:53:28,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 08:53:28,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-13 08:53:28,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:28,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:53:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 369 [2020-10-13 08:53:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 08:53:28,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:28,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:53:28,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:28,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:28,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:28,333 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:53:28,333 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:28,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:53:28,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:28,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:28,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:28,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:28,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:28,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:53:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:28,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:28,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:28,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:53:28,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:28,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-13 08:53:28,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:28,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:53:28,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:28,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:53:28,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:28,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-13 08:53:28,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:53:28,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:53:28,605 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:53:28,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 08:53:28,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:53:28,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-13 08:53:28,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:53:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:53:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:53:28,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 08:53:28,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:53:28,799 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2020-10-13 08:53:28,799 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2056416602] [2020-10-13 08:53:28,799 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:53:28,800 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:53:28,800 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25037301] [2020-10-13 08:53:28,800 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:53:28,800 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:53:28,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:53:28,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:53:28,801 INFO L87 Difference]: Start difference. First operand 928 states and 1035 transitions. Second operand 5 states. [2020-10-13 08:53:29,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:53:29,538 INFO L93 Difference]: Finished difference Result 1697 states and 1886 transitions. [2020-10-13 08:53:29,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:53:29,538 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 418 [2020-10-13 08:53:29,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:53:29,539 INFO L225 Difference]: With dead ends: 1697 [2020-10-13 08:53:29,539 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 08:53:29,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:53:29,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 08:53:29,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 08:53:29,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 08:53:29,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 08:53:29,543 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 418 [2020-10-13 08:53:29,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:53:29,543 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 08:53:29,543 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:53:29,543 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 08:53:29,543 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 08:53:29,543 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 08:53:29,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 08:53:30,045 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 83 [2020-10-13 08:53:30,354 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 83 [2020-10-13 08:53:31,266 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 271 DAG size of output: 105 [2020-10-13 08:53:31,507 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2020-10-13 08:53:31,721 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2020-10-13 08:53:31,724 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:53:31,724 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-10-13 08:53:31,724 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-10-13 08:53:31,725 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-10-13 08:53:31,726 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,726 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,726 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,726 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-10-13 08:53:31,726 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-10-13 08:53:31,726 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-13 08:53:31,726 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-13 08:53:31,726 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-13 08:53:31,726 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-10-13 08:53:31,726 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-10-13 08:53:31,727 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-10-13 08:53:31,727 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,727 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,727 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,727 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-10-13 08:53:31,727 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-13 08:53:31,727 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-13 08:53:31,727 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-13 08:53:31,727 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-10-13 08:53:31,727 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-10-13 08:53:31,727 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-10-13 08:53:31,728 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-10-13 08:53:31,728 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-10-13 08:53:31,728 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,728 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,728 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,728 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-10-13 08:53:31,728 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-13 08:53:31,728 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-13 08:53:31,728 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-13 08:53:31,729 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-10-13 08:53:31,729 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-10-13 08:53:31,729 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-10-13 08:53:31,729 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,729 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,729 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,729 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-10-13 08:53:31,729 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-13 08:53:31,729 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-13 08:53:31,730 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-13 08:53:31,730 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-10-13 08:53:31,730 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-10-13 08:53:31,730 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-10-13 08:53:31,730 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-10-13 08:53:31,730 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-10-13 08:53:31,730 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,730 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,730 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,731 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-13 08:53:31,732 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-13 08:53:31,733 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-10-13 08:53:31,733 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse6 (= ~a24~0 1)) (.cse4 (= ~a24~0 |old(~a24~0)|)) (.cse8 (= ~a21~0 |old(~a21~0)|)) (.cse5 (= ~a12~0 |old(~a12~0)|)) (.cse7 (= ~a15~0 |old(~a15~0)|))) (let ((.cse3 (and .cse4 .cse8 .cse5 .cse7)) (.cse1 (not (= 9 |old(~a21~0)|))) (.cse2 (and .cse6 (= ~a21~0 9) .cse5 .cse7)) (.cse0 (not (= |old(~a24~0)| 1)))) (and (or .cse0 (not (<= (+ |old(~a12~0)| 45) 0)) .cse1 .cse2) (or .cse3 (not (<= 7 |old(~a15~0)|))) (or .cse0 (not (<= 81 |old(~a12~0)|)) .cse1 .cse2) (or (not (<= 1 |old(~a24~0)|)) (not (<= |old(~a12~0)| 46)) (not (<= |old(~a24~0)| 1)) (not (<= |old(~a15~0)| 6)) (not (<= 6 |old(~a15~0)|)) (not (<= 13 |old(~a12~0)|)) (not (<= 6 |old(~a21~0)|)) (not (<= |old(~a21~0)| 6)) (and (<= 6 ~a15~0) .cse4 (<= 6 ~a21~0) .cse5 (<= ~a21~0 6) (<= ~a15~0 6))) (or .cse0 (and (= ~a21~0 6) .cse6 .cse5 .cse7) (not (<= 12849 |old(~a12~0)|)) (not (= 6 |old(~a21~0)|))) (or .cse3 (not (<= |old(~a15~0)| 5))) (or (not (= 10 |old(~a21~0)|)) .cse0 (and .cse8 .cse6 .cse5 .cse7) (not (<= |old(~a12~0)| 10)) (not (<= 0 (+ |old(~a12~0)| 41)))) (or .cse0 .cse1 (not (<= |old(~a12~0)| 11)) (not (<= 0 (+ |old(~a12~0)| 42))) .cse2) (or .cse0 (not (= 8 |old(~a21~0)|)) (not (<= 12 |old(~a12~0)|)) (not (<= |old(~a12~0)| 80)) (and .cse6 (= ~a21~0 8) .cse5 .cse7))))) [2020-10-13 08:53:31,733 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-10-13 08:53:31,733 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-10-13 08:53:31,733 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,733 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,733 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,733 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-13 08:53:31,734 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,735 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-10-13 08:53:31,736 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,737 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-10-13 08:53:31,738 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-10-13 08:53:31,739 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-10-13 08:53:31,739 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,739 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,739 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,739 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-10-13 08:53:31,739 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-10-13 08:53:31,739 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-13 08:53:31,739 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-13 08:53:31,739 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-10-13 08:53:31,740 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-10-13 08:53:31,740 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,740 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,740 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-13 08:53:31,740 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,740 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-10-13 08:53:31,740 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-10-13 08:53:31,740 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-10-13 08:53:31,740 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-13 08:53:31,740 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-13 08:53:31,740 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-13 08:53:31,741 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-10-13 08:53:31,741 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-10-13 08:53:31,741 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-10-13 08:53:31,741 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-10-13 08:53:31,741 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,741 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,741 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,741 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-10-13 08:53:31,741 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-13 08:53:31,741 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-13 08:53:31,742 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-13 08:53:31,742 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-10-13 08:53:31,742 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-10-13 08:53:31,742 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-10-13 08:53:31,742 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-10-13 08:53:31,742 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,742 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,742 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,742 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-10-13 08:53:31,742 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-10-13 08:53:31,743 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-13 08:53:31,743 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-13 08:53:31,743 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-13 08:53:31,743 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-10-13 08:53:31,743 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-10-13 08:53:31,743 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-10-13 08:53:31,743 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,743 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,743 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,743 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-10-13 08:53:31,744 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-13 08:53:31,744 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-13 08:53:31,744 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-13 08:53:31,744 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-10-13 08:53:31,744 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-10-13 08:53:31,744 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-10-13 08:53:31,744 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-10-13 08:53:31,744 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-10-13 08:53:31,744 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,744 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,745 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:53:31,745 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-10-13 08:53:31,745 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-13 08:53:31,745 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-13 08:53:31,745 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-13 08:53:31,745 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-10-13 08:53:31,745 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:53:31,745 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= ~a15~0 8) [2020-10-13 08:53:31,745 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 08:53:31,745 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:53:31,746 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a15~0 |old(~a15~0)|)) (not (= 8 |old(~a15~0)|))) [2020-10-13 08:53:31,746 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:53:31,746 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse1 (= ~a21~0 9)) (.cse0 (= ~a24~0 1))) (or (<= ~a15~0 5) (and (<= ~a12~0 46) (<= 13 ~a12~0) (<= ~a24~0 1) (<= 1 ~a24~0) (<= 6 ~a21~0) (<= ~a21~0 6)) (<= 7 ~a15~0) (and (<= 12 ~a12~0) .cse0 (<= ~a12~0 80) (= ~a21~0 8)) (and (<= (+ ~a12~0 45) 0) .cse0 .cse1) (and (<= 0 (+ ~a12~0 42)) (<= ~a12~0 11) .cse0 .cse1) (and (<= 81 ~a12~0) .cse0 .cse1) (not (= 8 |old(~a15~0)|)) (and (<= 0 (+ ~a12~0 41)) (<= ~a12~0 10) (= ~a21~0 10) .cse0) (and (<= 12849 ~a12~0) (= ~a21~0 6) .cse0))) [2020-10-13 08:53:31,746 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-10-13 08:53:31,746 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-10-13 08:53:31,747 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse1 (= ~a21~0 9)) (.cse0 (= ~a24~0 1))) (or (<= ~a15~0 5) (and (<= ~a12~0 46) (<= 13 ~a12~0) (<= ~a24~0 1) (<= 1 ~a24~0) (<= 6 ~a21~0) (<= ~a21~0 6)) (<= 7 ~a15~0) (and (<= 12 ~a12~0) .cse0 (<= ~a12~0 80) (= ~a21~0 8)) (and (<= (+ ~a12~0 45) 0) .cse0 .cse1) (and (<= 0 (+ ~a12~0 42)) (<= ~a12~0 11) .cse0 .cse1) (and (<= 81 ~a12~0) .cse0 .cse1) (not (= 8 |old(~a15~0)|)) (and (<= 0 (+ ~a12~0 41)) (<= ~a12~0 10) (= ~a21~0 10) .cse0) (and (<= 12849 ~a12~0) (= ~a21~0 6) .cse0))) [2020-10-13 08:53:31,747 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:53:31,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:53:31 BoogieIcfgContainer [2020-10-13 08:53:31,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 08:53:31,770 INFO L168 Benchmark]: Toolchain (without parser) took 137227.86 ms. Allocated memory was 145.8 MB in the beginning and 1.8 GB in the end (delta: 1.6 GB). Free memory was 100.9 MB in the beginning and 79.2 MB in the end (delta: 21.7 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2020-10-13 08:53:31,771 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 08:53:31,772 INFO L168 Benchmark]: CACSL2BoogieTranslator took 841.14 ms. Allocated memory was 145.8 MB in the beginning and 206.6 MB in the end (delta: 60.8 MB). Free memory was 100.7 MB in the beginning and 169.1 MB in the end (delta: -68.4 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-10-13 08:53:31,772 INFO L168 Benchmark]: Boogie Preprocessor took 127.31 ms. Allocated memory is still 206.6 MB. Free memory was 169.1 MB in the beginning and 163.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-10-13 08:53:31,773 INFO L168 Benchmark]: RCFGBuilder took 1582.36 ms. Allocated memory was 206.6 MB in the beginning and 239.1 MB in the end (delta: 32.5 MB). Free memory was 163.5 MB in the beginning and 155.4 MB in the end (delta: 8.0 MB). Peak memory consumption was 78.2 MB. Max. memory is 7.1 GB. [2020-10-13 08:53:31,774 INFO L168 Benchmark]: TraceAbstraction took 134671.36 ms. Allocated memory was 239.1 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 155.4 MB in the beginning and 79.2 MB in the end (delta: 76.2 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2020-10-13 08:53:31,777 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.8 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 841.14 ms. Allocated memory was 145.8 MB in the beginning and 206.6 MB in the end (delta: 60.8 MB). Free memory was 100.7 MB in the beginning and 169.1 MB in the end (delta: -68.4 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.31 ms. Allocated memory is still 206.6 MB. Free memory was 169.1 MB in the beginning and 163.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1582.36 ms. Allocated memory was 206.6 MB in the beginning and 239.1 MB in the end (delta: 32.5 MB). Free memory was 163.5 MB in the beginning and 155.4 MB in the end (delta: 8.0 MB). Peak memory consumption was 78.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 134671.36 ms. Allocated memory was 239.1 MB in the beginning and 1.8 GB in the end (delta: 1.5 GB). Free memory was 155.4 MB in the beginning and 79.2 MB in the end (delta: 76.2 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 169]: 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: 880]: Loop Invariant Derived loop invariant: ((((((((a15 <= 5 || (((((a12 <= 46 && 13 <= a12) && a24 <= 1) && 1 <= a24) && 6 <= a21) && a21 <= 6)) || 7 <= a15) || (((12 <= a12 && a24 == 1) && a12 <= 80) && a21 == 8)) || ((a12 + 45 <= 0 && a24 == 1) && a21 == 9)) || (((0 <= a12 + 42 && a12 <= 11) && a24 == 1) && a21 == 9)) || ((81 <= a12 && a24 == 1) && a21 == 9)) || !(8 == \old(a15))) || (((0 <= a12 + 41 && a12 <= 10) && a21 == 10) && a24 == 1)) || ((12849 <= a12 && a21 == 6) && a24 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 132.3s, OverallIterations: 25, TraceHistogramMax: 3, AutomataDifference: 22.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 620 SDtfs, 6351 SDslu, 519 SDs, 0 SdLazy, 14727 SolverSat, 475 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 197 SyntacticMatches, 19 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=928occurred in iteration=24, 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, 25 MinimizatonAttempts, 96 StatesRemovedByMinimization, 24 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 110 PreInvPairs, 166 NumberOfFragments, 526 HoareAnnotationTreeSize, 110 FomulaSimplifications, 2315260156 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1893 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 104.9s InterpolantComputationTime, 8107 NumberOfCodeBlocks, 8107 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 8082 ConstructedInterpolants, 0 QuantifiedInterpolants, 6338502 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 25 InterpolantComputations, 1 PerfectInterpolantSequences, 4887/4932 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...