/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label51.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:50:40,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:50:40,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:50:40,275 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:50:40,276 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:50:40,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:50:40,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:50:40,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:50:40,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:50:40,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:50:40,283 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:50:40,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:50:40,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:50:40,285 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:50:40,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:50:40,287 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:50:40,288 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:50:40,289 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:50:40,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:50:40,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:50:40,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:50:40,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:50:40,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:50:40,296 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:50:40,299 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:50:40,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:50:40,299 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:50:40,300 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:50:40,300 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:50:40,301 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:50:40,302 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:50:40,302 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:50:40,303 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:50:40,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:50:40,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:50:40,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:50:40,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:50:40,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:50:40,306 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:50:40,307 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:50:40,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:50:40,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 03:50:40,331 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:50:40,331 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:50:40,332 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:50:40,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:50:40,333 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:50:40,333 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:50:40,333 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:50:40,333 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:50:40,334 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:50:40,334 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:50:40,334 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:50:40,334 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:50:40,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:50:40,334 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:50:40,335 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:50:40,335 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:50:40,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:50:40,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:50:40,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:50:40,336 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:50:40,336 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:50:40,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:50:40,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:50:40,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:50:40,337 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:50:40,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:50:40,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:50:40,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:50:40,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:50:40,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 03:50:40,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:50:40,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:50:40,657 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:50:40,658 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:50:40,658 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:50:40,659 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label51.c [2020-10-14 03:50:40,723 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42d652ae3/dd57fcdaf3e5435daf53f3a5d479f464/FLAG15ac5867d [2020-10-14 03:50:41,329 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:50:41,330 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label51.c [2020-10-14 03:50:41,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42d652ae3/dd57fcdaf3e5435daf53f3a5d479f464/FLAG15ac5867d [2020-10-14 03:50:41,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/42d652ae3/dd57fcdaf3e5435daf53f3a5d479f464 [2020-10-14 03:50:41,519 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:50:41,521 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:50:41,522 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:50:41,522 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:50:41,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:50:41,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:50:41" (1/1) ... [2020-10-14 03:50:41,530 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56344ce7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:41, skipping insertion in model container [2020-10-14 03:50:41,530 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:50:41" (1/1) ... [2020-10-14 03:50:41,539 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:50:41,621 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:50:42,531 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:50:42,537 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:50:42,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:50:42,848 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:50:42,849 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:42 WrapperNode [2020-10-14 03:50:42,849 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:50:42,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:50:42,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:50:42,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:50:42,864 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:42" (1/1) ... [2020-10-14 03:50:42,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:42" (1/1) ... [2020-10-14 03:50:42,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:42" (1/1) ... [2020-10-14 03:50:42,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:42" (1/1) ... [2020-10-14 03:50:42,977 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:42" (1/1) ... [2020-10-14 03:50:43,002 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:42" (1/1) ... [2020-10-14 03:50:43,016 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:42" (1/1) ... [2020-10-14 03:50:43,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:50:43,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:50:43,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:50:43,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:50:43,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:50:43,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:50:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:50:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:50:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:50:43,101 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:50:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:50:43,101 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:50:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:50:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:50:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:50:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:50:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:50:43,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:50:45,375 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:50:45,376 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:50:45,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:50:45 BoogieIcfgContainer [2020-10-14 03:50:45,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:50:45,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:50:45,386 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:50:45,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:50:45,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:50:41" (1/3) ... [2020-10-14 03:50:45,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b8227a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:50:45, skipping insertion in model container [2020-10-14 03:50:45,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:50:42" (2/3) ... [2020-10-14 03:50:45,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b8227a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:50:45, skipping insertion in model container [2020-10-14 03:50:45,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:50:45" (3/3) ... [2020-10-14 03:50:45,392 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label51.c [2020-10-14 03:50:45,403 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:50:45,411 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:50:45,424 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:50:45,450 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:50:45,450 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:50:45,451 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:50:45,451 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:50:45,451 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:50:45,451 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:50:45,451 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:50:45,451 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:50:45,476 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:50:45,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-14 03:50:45,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:45,484 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] [2020-10-14 03:50:45,484 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:45,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:45,491 INFO L82 PathProgramCache]: Analyzing trace with hash 848957365, now seen corresponding path program 1 times [2020-10-14 03:50:45,500 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:45,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170870034] [2020-10-14 03:50:45,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:45,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:45,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:45,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 03:50:45,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:45,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 318 [2020-10-14 03:50:45,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:45,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:50:45,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:50:45,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 03:50:45,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 03:50:46,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:46,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:46,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:46,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:46,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:46,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:50:46,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:46,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:46,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:46,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:46,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:50:46,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:50:46,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:50:46,140 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170870034] [2020-10-14 03:50:46,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:50:46,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 03:50:46,144 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172436414] [2020-10-14 03:50:46,149 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 03:50:46,149 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:46,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 03:50:46,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 03:50:46,166 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 4 states. [2020-10-14 03:50:49,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:49,522 INFO L93 Difference]: Finished difference Result 1169 states and 2164 transitions. [2020-10-14 03:50:49,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:50:49,524 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 20 [2020-10-14 03:50:49,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:49,543 INFO L225 Difference]: With dead ends: 1169 [2020-10-14 03:50:49,543 INFO L226 Difference]: Without dead ends: 696 [2020-10-14 03:50:49,552 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 [2020-10-14 03:50:49,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-10-14 03:50:49,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 692. [2020-10-14 03:50:49,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 692 states. [2020-10-14 03:50:49,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1014 transitions. [2020-10-14 03:50:49,656 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1014 transitions. Word has length 20 [2020-10-14 03:50:49,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:49,657 INFO L479 AbstractCegarLoop]: Abstraction has 692 states and 1014 transitions. [2020-10-14 03:50:49,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 03:50:49,657 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1014 transitions. [2020-10-14 03:50:49,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 03:50:49,666 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:49,670 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-14 03:50:49,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:50:49,671 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:49,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:49,671 INFO L82 PathProgramCache]: Analyzing trace with hash 1953526824, now seen corresponding path program 1 times [2020-10-14 03:50:49,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:49,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1024139473] [2020-10-14 03:50:49,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:49,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:50,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:50,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:50,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 03:50:50,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:50:50,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 976 [2020-10-14 03:50:50,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:50,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:50,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:50,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 03:50:50,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 03:50:50,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:50:50,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:50,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:50,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:50,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:50,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:50,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:50,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:50:50,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:50,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:50,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:50,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:50,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:50,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:50,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:50,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:50,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:50,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:50,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-14 03:50:50,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:50,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 03:50:50,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:50,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:50,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:50:50,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-14 03:50:51,025 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 03:50:51,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1024139473] [2020-10-14 03:50:51,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:51,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:50:51,027 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300248943] [2020-10-14 03:50:51,028 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:50:51,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:51,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:50:51,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:50:51,029 INFO L87 Difference]: Start difference. First operand 692 states and 1014 transitions. Second operand 5 states. [2020-10-14 03:50:56,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:56,350 INFO L93 Difference]: Finished difference Result 2063 states and 3056 transitions. [2020-10-14 03:50:56,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:50:56,356 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-14 03:50:56,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:56,364 INFO L225 Difference]: With dead ends: 2063 [2020-10-14 03:50:56,364 INFO L226 Difference]: Without dead ends: 1377 [2020-10-14 03:50:56,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 03:50:56,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2020-10-14 03:50:56,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1373. [2020-10-14 03:50:56,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1373 states. [2020-10-14 03:50:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1373 states to 1373 states and 1805 transitions. [2020-10-14 03:50:56,419 INFO L78 Accepts]: Start accepts. Automaton has 1373 states and 1805 transitions. Word has length 96 [2020-10-14 03:50:56,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:56,420 INFO L479 AbstractCegarLoop]: Abstraction has 1373 states and 1805 transitions. [2020-10-14 03:50:56,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:50:56,420 INFO L276 IsEmpty]: Start isEmpty. Operand 1373 states and 1805 transitions. [2020-10-14 03:50:56,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-14 03:50:56,428 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:56,428 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:56,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:50:56,428 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:56,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:56,429 INFO L82 PathProgramCache]: Analyzing trace with hash 2034977208, now seen corresponding path program 1 times [2020-10-14 03:50:56,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:56,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857850838] [2020-10-14 03:50:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:56,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:56,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:56,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:56,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:57,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:57,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:57,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:59,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:59,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-14 03:50:59,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:50:59,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2914 [2020-10-14 03:50:59,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:59,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:50:59,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-14 03:50:59,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:59,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:59,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:59,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:59,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:59,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:59,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:59,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:50:59,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:59,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:59,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:59,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:59,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:59,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:59,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:50:59,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:59,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:50:59,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:59,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:50:59,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:59,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:50:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:59,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:59,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:59,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-14 03:50:59,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:59,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 03:50:59,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:59,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:59,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:59,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:59,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:50:59,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:59,791 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:50:59,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857850838] [2020-10-14 03:50:59,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:59,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:59,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870316896] [2020-10-14 03:50:59,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:59,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:59,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:59,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:59,798 INFO L87 Difference]: Start difference. First operand 1373 states and 1805 transitions. Second operand 7 states. [2020-10-14 03:51:03,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:03,913 INFO L93 Difference]: Finished difference Result 3457 states and 4726 transitions. [2020-10-14 03:51:03,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:51:03,916 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-10-14 03:51:03,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:03,929 INFO L225 Difference]: With dead ends: 3457 [2020-10-14 03:51:03,929 INFO L226 Difference]: Without dead ends: 2090 [2020-10-14 03:51:03,934 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:51:03,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2020-10-14 03:51:03,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 2068. [2020-10-14 03:51:03,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2068 states. [2020-10-14 03:51:04,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2669 transitions. [2020-10-14 03:51:04,002 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2669 transitions. Word has length 183 [2020-10-14 03:51:04,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:04,004 INFO L479 AbstractCegarLoop]: Abstraction has 2068 states and 2669 transitions. [2020-10-14 03:51:04,004 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:04,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2669 transitions. [2020-10-14 03:51:04,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-10-14 03:51:04,009 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:04,010 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:04,010 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:51:04,010 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:04,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:04,011 INFO L82 PathProgramCache]: Analyzing trace with hash -431308899, now seen corresponding path program 1 times [2020-10-14 03:51:04,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:04,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [598211872] [2020-10-14 03:51:04,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:04,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:04,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:04,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:04,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:04,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:06,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:06,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-14 03:51:06,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:51:06,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2238 [2020-10-14 03:51:06,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:06,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-14 03:51:06,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 03:51:06,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:06,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:06,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:06,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:06,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:06,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:06,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:06,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:06,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:06,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:06,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:06,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:06,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:06,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:06,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:06,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:06,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:06,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:06,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-14 03:51:06,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:06,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 03:51:06,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:06,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:06,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 03:51:06,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:06,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-14 03:51:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:06,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:06,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:06,697 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:51:06,697 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:06,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 154 [2020-10-14 03:51:06,697 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:06,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:06,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 03:51:06,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:06,855 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 114 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:51:06,856 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [598211872] [2020-10-14 03:51:06,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:06,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:06,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593443619] [2020-10-14 03:51:06,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:06,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:06,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:06,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:06,859 INFO L87 Difference]: Start difference. First operand 2068 states and 2669 transitions. Second operand 7 states. [2020-10-14 03:51:11,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:11,440 INFO L93 Difference]: Finished difference Result 5545 states and 7348 transitions. [2020-10-14 03:51:11,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:51:11,441 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 246 [2020-10-14 03:51:11,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:11,456 INFO L225 Difference]: With dead ends: 5545 [2020-10-14 03:51:11,457 INFO L226 Difference]: Without dead ends: 2782 [2020-10-14 03:51:11,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:51:11,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2782 states. [2020-10-14 03:51:11,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2782 to 2770. [2020-10-14 03:51:11,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2770 states. [2020-10-14 03:51:11,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2770 states to 2770 states and 3045 transitions. [2020-10-14 03:51:11,533 INFO L78 Accepts]: Start accepts. Automaton has 2770 states and 3045 transitions. Word has length 246 [2020-10-14 03:51:11,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:11,534 INFO L479 AbstractCegarLoop]: Abstraction has 2770 states and 3045 transitions. [2020-10-14 03:51:11,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:11,534 INFO L276 IsEmpty]: Start isEmpty. Operand 2770 states and 3045 transitions. [2020-10-14 03:51:11,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-10-14 03:51:11,558 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:11,559 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:11,559 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:51:11,559 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:11,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:11,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1169038738, now seen corresponding path program 1 times [2020-10-14 03:51:11,560 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:11,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801574468] [2020-10-14 03:51:11,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:11,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:11,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:11,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:11,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:15,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-14 03:51:15,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:51:15,147 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3549 [2020-10-14 03:51:15,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:15,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:15,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:51:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 03:51:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:15,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:15,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:15,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:15,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:15,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:15,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:15,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:15,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:15,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:15,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:15,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:15,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:15,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:15,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:15,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:51:15,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:15,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:51:15,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:15,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:15,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:51:15,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:15,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:51:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:15,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:15,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:51:15,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:15,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-10-14 03:51:15,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:15,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:15,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:15,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:51:15,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:15,650 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:51:15,651 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801574468] [2020-10-14 03:51:15,651 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:15,652 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:15,652 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888143672] [2020-10-14 03:51:15,653 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:15,653 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:15,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:15,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:15,654 INFO L87 Difference]: Start difference. First operand 2770 states and 3045 transitions. Second operand 7 states. [2020-10-14 03:51:18,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:18,274 INFO L93 Difference]: Finished difference Result 6925 states and 7736 transitions. [2020-10-14 03:51:18,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:51:18,274 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 249 [2020-10-14 03:51:18,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:18,294 INFO L225 Difference]: With dead ends: 6925 [2020-10-14 03:51:18,295 INFO L226 Difference]: Without dead ends: 4161 [2020-10-14 03:51:18,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:51:18,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4161 states. [2020-10-14 03:51:18,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4161 to 4143. [2020-10-14 03:51:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4143 states. [2020-10-14 03:51:18,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4143 states to 4143 states and 4604 transitions. [2020-10-14 03:51:18,413 INFO L78 Accepts]: Start accepts. Automaton has 4143 states and 4604 transitions. Word has length 249 [2020-10-14 03:51:18,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:18,413 INFO L479 AbstractCegarLoop]: Abstraction has 4143 states and 4604 transitions. [2020-10-14 03:51:18,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:18,414 INFO L276 IsEmpty]: Start isEmpty. Operand 4143 states and 4604 transitions. [2020-10-14 03:51:18,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-10-14 03:51:18,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:18,420 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:18,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:51:18,421 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:18,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:18,421 INFO L82 PathProgramCache]: Analyzing trace with hash -1866343459, now seen corresponding path program 1 times [2020-10-14 03:51:18,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:18,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [759971890] [2020-10-14 03:51:18,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:18,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:18,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:18,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:18,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:22,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:23,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:23,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:23,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 350 [2020-10-14 03:51:23,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:51:23,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 03:51:23,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:23,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:23,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:23,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:51:23,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-14 03:51:23,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:23,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:23,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:23,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:23,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:23,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:23,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:23,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 03:51:23,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:23,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:23,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:23,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:23,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:23,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:23,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:23,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:24,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:24,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:51:24,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:24,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-14 03:51:24,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:24,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:24,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:24,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:24,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:51:24,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:24,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:51:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:24,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:24,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:24,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:51:24,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:24,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-14 03:51:24,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:24,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:24,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:24,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:24,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:51:24,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:24,555 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 92 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:51:24,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [759971890] [2020-10-14 03:51:24,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:24,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:24,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999508257] [2020-10-14 03:51:24,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:24,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:24,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:24,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:24,559 INFO L87 Difference]: Start difference. First operand 4143 states and 4604 transitions. Second operand 7 states. [2020-10-14 03:51:27,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:27,613 INFO L93 Difference]: Finished difference Result 9669 states and 10815 transitions. [2020-10-14 03:51:27,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:51:27,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 338 [2020-10-14 03:51:27,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:27,642 INFO L225 Difference]: With dead ends: 9669 [2020-10-14 03:51:27,642 INFO L226 Difference]: Without dead ends: 5532 [2020-10-14 03:51:27,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-14 03:51:27,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5532 states. [2020-10-14 03:51:27,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5532 to 5514. [2020-10-14 03:51:27,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5514 states. [2020-10-14 03:51:27,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 6050 transitions. [2020-10-14 03:51:27,761 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 6050 transitions. Word has length 338 [2020-10-14 03:51:27,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:27,762 INFO L479 AbstractCegarLoop]: Abstraction has 5514 states and 6050 transitions. [2020-10-14 03:51:27,762 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:27,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 6050 transitions. [2020-10-14 03:51:27,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-10-14 03:51:27,770 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:27,770 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:27,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:51:27,771 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:27,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:27,771 INFO L82 PathProgramCache]: Analyzing trace with hash -820373248, now seen corresponding path program 1 times [2020-10-14 03:51:27,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:27,772 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544501236] [2020-10-14 03:51:27,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:27,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:27,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:28,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:29,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:31,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:32,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:32,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 351 [2020-10-14 03:51:32,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:51:32,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:51:32,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:32,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:51:32,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-14 03:51:32,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:32,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:32,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:32,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:32,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:32,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:32,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:32,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:32,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:32,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:32,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:32,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:32,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:32,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:33,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:33,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:33,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:33,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:51:33,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:33,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-14 03:51:33,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:33,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:33,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:33,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:33,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:51:33,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:33,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:51:33,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:33,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:33,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:33,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:51:33,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:33,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:51:33,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:33,640 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:33,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:33,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:33,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-14 03:51:33,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:33,854 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 93 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:51:33,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544501236] [2020-10-14 03:51:33,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:33,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:33,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065666192] [2020-10-14 03:51:33,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:33,858 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:33,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:33,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:33,859 INFO L87 Difference]: Start difference. First operand 5514 states and 6050 transitions. Second operand 7 states. [2020-10-14 03:51:38,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:38,376 INFO L93 Difference]: Finished difference Result 16273 states and 18691 transitions. [2020-10-14 03:51:38,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:51:38,377 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 339 [2020-10-14 03:51:38,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:38,423 INFO L225 Difference]: With dead ends: 16273 [2020-10-14 03:51:38,423 INFO L226 Difference]: Without dead ends: 10765 [2020-10-14 03:51:38,439 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:51:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10765 states. [2020-10-14 03:51:38,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10765 to 10647. [2020-10-14 03:51:38,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10647 states. [2020-10-14 03:51:38,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10647 states to 10647 states and 11775 transitions. [2020-10-14 03:51:38,685 INFO L78 Accepts]: Start accepts. Automaton has 10647 states and 11775 transitions. Word has length 339 [2020-10-14 03:51:38,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:38,686 INFO L479 AbstractCegarLoop]: Abstraction has 10647 states and 11775 transitions. [2020-10-14 03:51:38,686 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:38,686 INFO L276 IsEmpty]: Start isEmpty. Operand 10647 states and 11775 transitions. [2020-10-14 03:51:38,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2020-10-14 03:51:38,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:38,701 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:38,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:51:38,702 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:38,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:38,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1543154784, now seen corresponding path program 1 times [2020-10-14 03:51:38,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:38,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2011191199] [2020-10-14 03:51:38,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:38,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:38,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:38,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:40,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:40,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:40,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:43,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:43,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 488 [2020-10-14 03:51:43,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:51:43,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 03:51:43,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:43,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:43,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:51:43,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 03:51:43,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:43,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:43,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:43,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:43,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:43,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:43,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:43,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:43,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:43,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:43,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:43,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:43,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:43,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:43,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:43,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:43,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:43,963 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:51:43,963 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:43,963 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 03:51:43,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:43,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:43,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:43,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:43,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:51:43,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:43,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:51:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:44,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:44,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:44,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:51:44,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:44,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-10-14 03:51:44,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:44,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:44,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:44,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:44,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 03:51:44,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:44,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:51:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:44,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:44,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:44,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:51:44,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:44,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:51:44,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:44,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:44,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:44,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-14 03:51:44,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:44,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:44,661 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 140 proven. 134 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 03:51:44,661 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2011191199] [2020-10-14 03:51:44,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:44,662 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:44,662 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369915039] [2020-10-14 03:51:44,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:44,663 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:44,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:44,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:44,664 INFO L87 Difference]: Start difference. First operand 10647 states and 11775 transitions. Second operand 7 states. [2020-10-14 03:51:47,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:47,678 INFO L93 Difference]: Finished difference Result 22982 states and 25602 transitions. [2020-10-14 03:51:47,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:51:47,679 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 474 [2020-10-14 03:51:47,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:47,719 INFO L225 Difference]: With dead ends: 22982 [2020-10-14 03:51:47,720 INFO L226 Difference]: Without dead ends: 13029 [2020-10-14 03:51:47,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:51:47,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13029 states. [2020-10-14 03:51:47,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13029 to 12688. [2020-10-14 03:51:47,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12688 states. [2020-10-14 03:51:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12688 states to 12688 states and 14027 transitions. [2020-10-14 03:51:47,964 INFO L78 Accepts]: Start accepts. Automaton has 12688 states and 14027 transitions. Word has length 474 [2020-10-14 03:51:47,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:47,965 INFO L479 AbstractCegarLoop]: Abstraction has 12688 states and 14027 transitions. [2020-10-14 03:51:47,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand 12688 states and 14027 transitions. [2020-10-14 03:51:47,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2020-10-14 03:51:47,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:47,974 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-10-14 03:51:47,974 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:51:47,975 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:47,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:47,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1329085143, now seen corresponding path program 1 times [2020-10-14 03:51:47,976 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:47,976 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210174162] [2020-10-14 03:51:47,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:48,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:48,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:48,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:50,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:50,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 553 [2020-10-14 03:51:53,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:51:53,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 03:51:53,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:53,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:51:53,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 204 [2020-10-14 03:51:53,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:53,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:53,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:53,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:53,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:53,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:51:53,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:53,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:53,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:53,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:53,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:53,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:51:53,348 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:53,348 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-10-14 03:51:53,348 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,348 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:53,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:53,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:51:53,349 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:53,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:51:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:53,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:51:53,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:53,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-14 03:51:53,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,577 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:53,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 202 [2020-10-14 03:51:53,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:53,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-14 03:51:53,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:53,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:53,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:53,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:51:53,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:53,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:51:53,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:53,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:53,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:53,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-10-14 03:51:53,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:53,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:53,813 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 241 proven. 68 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2020-10-14 03:51:53,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1210174162] [2020-10-14 03:51:53,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:53,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:53,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664021994] [2020-10-14 03:51:53,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:53,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:53,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:53,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:53,816 INFO L87 Difference]: Start difference. First operand 12688 states and 14027 transitions. Second operand 7 states. [2020-10-14 03:51:57,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:57,518 INFO L93 Difference]: Finished difference Result 26716 states and 29647 transitions. [2020-10-14 03:51:57,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:51:57,526 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 539 [2020-10-14 03:51:57,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:57,581 INFO L225 Difference]: With dead ends: 26716 [2020-10-14 03:51:57,581 INFO L226 Difference]: Without dead ends: 14722 [2020-10-14 03:51:57,607 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:51:57,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14722 states. [2020-10-14 03:51:57,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14722 to 14720. [2020-10-14 03:51:57,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14720 states. [2020-10-14 03:51:57,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14720 states to 14720 states and 16256 transitions. [2020-10-14 03:51:57,854 INFO L78 Accepts]: Start accepts. Automaton has 14720 states and 16256 transitions. Word has length 539 [2020-10-14 03:51:57,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:57,856 INFO L479 AbstractCegarLoop]: Abstraction has 14720 states and 16256 transitions. [2020-10-14 03:51:57,856 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 14720 states and 16256 transitions. [2020-10-14 03:51:57,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2020-10-14 03:51:57,869 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:57,870 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:57,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:51:57,870 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:57,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:57,871 INFO L82 PathProgramCache]: Analyzing trace with hash -966476983, now seen corresponding path program 1 times [2020-10-14 03:51:57,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:57,871 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926135849] [2020-10-14 03:51:57,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:57,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:58,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:58,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:58,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:01,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:02,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:02,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,017 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 637 [2020-10-14 03:52:03,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:52:03,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-14 03:52:03,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,018 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 259 [2020-10-14 03:52:03,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 222 [2020-10-14 03:52:03,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:03,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:03,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:03,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:52:03,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:03,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:03,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:03,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:52:03,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 03:52:03,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:03,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:03,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 244 [2020-10-14 03:52:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:52:03,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:03,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-14 03:52:03,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:03,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-14 03:52:03,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:03,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:03,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 03:52:03,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 476 [2020-10-14 03:52:03,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:03,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:52:03,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:03,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:52:03,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 133 [2020-10-14 03:52:03,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:03,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,890 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 259 proven. 134 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2020-10-14 03:52:03,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926135849] [2020-10-14 03:52:03,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:03,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:03,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632916032] [2020-10-14 03:52:03,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:03,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:03,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:03,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:03,893 INFO L87 Difference]: Start difference. First operand 14720 states and 16256 transitions. Second operand 7 states. [2020-10-14 03:52:07,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:07,021 INFO L93 Difference]: Finished difference Result 31670 states and 35888 transitions. [2020-10-14 03:52:07,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:52:07,022 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 623 [2020-10-14 03:52:07,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:07,078 INFO L225 Difference]: With dead ends: 31670 [2020-10-14 03:52:07,078 INFO L226 Difference]: Without dead ends: 17644 [2020-10-14 03:52:07,107 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:52:07,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17644 states. [2020-10-14 03:52:07,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17644 to 17083. [2020-10-14 03:52:07,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17083 states. [2020-10-14 03:52:07,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17083 states to 17083 states and 18737 transitions. [2020-10-14 03:52:07,437 INFO L78 Accepts]: Start accepts. Automaton has 17083 states and 18737 transitions. Word has length 623 [2020-10-14 03:52:07,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:07,438 INFO L479 AbstractCegarLoop]: Abstraction has 17083 states and 18737 transitions. [2020-10-14 03:52:07,439 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:07,439 INFO L276 IsEmpty]: Start isEmpty. Operand 17083 states and 18737 transitions. [2020-10-14 03:52:07,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2020-10-14 03:52:07,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:07,478 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-10-14 03:52:07,478 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:52:07,478 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:07,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:07,479 INFO L82 PathProgramCache]: Analyzing trace with hash 520394353, now seen corresponding path program 1 times [2020-10-14 03:52:07,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:07,479 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1682848322] [2020-10-14 03:52:07,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:07,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:07,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:08,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:08,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:12,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:12,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1088 [2020-10-14 03:52:12,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:12,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-14 03:52:12,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:12,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:52:12,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:52:12,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:12,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:12,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:12,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:12,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:12,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:12,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:52:12,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:12,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:12,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:12,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:12,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:12,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:12,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:12,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:12,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:12,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:12,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:52:12,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:12,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 03:52:12,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:12,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:12,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:12,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:12,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:12,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:52:12,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:52:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:12,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:13,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:13,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:52:13,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:13,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-14 03:52:13,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:13,103 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:13,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:13,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:13,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:52:13,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:13,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:52:13,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:13,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:13,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:13,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:13,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-14 03:52:13,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:13,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:13,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:52:13,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:13,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2020-10-14 03:52:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:13,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:13,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:13,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:52:13,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:13,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-14 03:52:13,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:13,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:13,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:13,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:52:13,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:13,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:14,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1580 backedges. 581 proven. 253 refuted. 0 times theorem prover too weak. 746 trivial. 0 not checked. [2020-10-14 03:52:14,694 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1682848322] [2020-10-14 03:52:14,694 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:14,694 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:14,694 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583661653] [2020-10-14 03:52:14,695 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:14,695 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:14,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:14,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:14,695 INFO L87 Difference]: Start difference. First operand 17083 states and 18737 transitions. Second operand 7 states. [2020-10-14 03:52:18,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:18,968 INFO L93 Difference]: Finished difference Result 33815 states and 37122 transitions. [2020-10-14 03:52:18,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:52:18,969 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1072 [2020-10-14 03:52:18,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:19,030 INFO L225 Difference]: With dead ends: 33815 [2020-10-14 03:52:19,031 INFO L226 Difference]: Without dead ends: 17426 [2020-10-14 03:52:19,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:52:19,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17426 states. [2020-10-14 03:52:19,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17426 to 17089. [2020-10-14 03:52:19,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17089 states. [2020-10-14 03:52:19,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17089 states to 17089 states and 18744 transitions. [2020-10-14 03:52:19,299 INFO L78 Accepts]: Start accepts. Automaton has 17089 states and 18744 transitions. Word has length 1072 [2020-10-14 03:52:19,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:19,301 INFO L479 AbstractCegarLoop]: Abstraction has 17089 states and 18744 transitions. [2020-10-14 03:52:19,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:19,301 INFO L276 IsEmpty]: Start isEmpty. Operand 17089 states and 18744 transitions. [2020-10-14 03:52:19,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1156 [2020-10-14 03:52:19,338 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:19,339 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:52:19,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:52:19,339 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:19,340 INFO L82 PathProgramCache]: Analyzing trace with hash -2122654121, now seen corresponding path program 1 times [2020-10-14 03:52:19,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:19,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1019974778] [2020-10-14 03:52:19,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:19,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:19,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:19,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:20,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:24,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:24,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1173 [2020-10-14 03:52:24,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:24,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 03:52:24,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:24,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 622 [2020-10-14 03:52:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:52:24,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:24,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:24,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:24,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:24,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:24,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:24,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:24,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:24,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:24,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:24,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:24,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:24,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:24,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:24,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:24,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:24,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:24,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:52:24,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:24,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:52:24,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:24,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:24,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:24,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:24,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:24,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:24,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:52:24,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:24,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:24,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:24,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:52:24,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:24,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:52:24,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:24,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:24,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:24,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:24,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:52:24,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:24,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:24,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:24,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:52:24,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:24,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:52:24,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:24,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:24,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:24,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:24,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:52:24,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:24,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:52:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:24,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:25,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:25,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:25,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:25,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-14 03:52:25,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:25,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:25,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:52:25,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:25,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 889 [2020-10-14 03:52:25,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:25,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:25,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:25,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:52:25,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:25,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:52:25,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:25,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:52:25,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:25,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:26,427 INFO L134 CoverageAnalysis]: Checked inductivity of 1925 backedges. 683 proven. 253 refuted. 0 times theorem prover too weak. 989 trivial. 0 not checked. [2020-10-14 03:52:26,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1019974778] [2020-10-14 03:52:26,428 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:26,428 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:26,428 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28354578] [2020-10-14 03:52:26,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:26,429 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:26,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:26,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:26,430 INFO L87 Difference]: Start difference. First operand 17089 states and 18744 transitions. Second operand 7 states. [2020-10-14 03:52:29,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:29,516 INFO L93 Difference]: Finished difference Result 34497 states and 37839 transitions. [2020-10-14 03:52:29,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:52:29,517 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1155 [2020-10-14 03:52:29,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:29,554 INFO L225 Difference]: With dead ends: 34497 [2020-10-14 03:52:29,554 INFO L226 Difference]: Without dead ends: 18102 [2020-10-14 03:52:29,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:52:29,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18102 states. [2020-10-14 03:52:29,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18102 to 17763. [2020-10-14 03:52:29,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17763 states. [2020-10-14 03:52:29,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17763 states to 17763 states and 19439 transitions. [2020-10-14 03:52:29,815 INFO L78 Accepts]: Start accepts. Automaton has 17763 states and 19439 transitions. Word has length 1155 [2020-10-14 03:52:29,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:29,817 INFO L479 AbstractCegarLoop]: Abstraction has 17763 states and 19439 transitions. [2020-10-14 03:52:29,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:29,817 INFO L276 IsEmpty]: Start isEmpty. Operand 17763 states and 19439 transitions. [2020-10-14 03:52:29,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1222 [2020-10-14 03:52:29,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:29,856 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:52:29,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:52:29,857 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:29,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:29,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1809063802, now seen corresponding path program 1 times [2020-10-14 03:52:29,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:29,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [174084779] [2020-10-14 03:52:29,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:30,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:30,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:35,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:35,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1243 [2020-10-14 03:52:35,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:52:35,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5036 [2020-10-14 03:52:35,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:35,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:52:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:52:35,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-14 03:52:35,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:35,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:35,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:35,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:35,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:35,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:35,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:35,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:35,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:35,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:35,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:52:35,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:35,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:35,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:35,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:35,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:35,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:52:35,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:35,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 03:52:35,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:35,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:35,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:35,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:35,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 03:52:35,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:35,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:52:35,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:35,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:35,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:35,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:52:35,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:35,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-14 03:52:35,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:35,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-14 03:52:35,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:35,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:35,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:52:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:35,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:35,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:35,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:52:35,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:35,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:52:35,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:35,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:35,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:35,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 03:52:35,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:35,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:35,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:52:35,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:35,657 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:35,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:35,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:52:35,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:35,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:52:35,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:35,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:35,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:35,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:52:35,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:35,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:35,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:52:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:35,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:35,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:35,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:52:35,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:35,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:52:35,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:35,770 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:35,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:35,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:52:35,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:35,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:35,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:52:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:35,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:35,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:35,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:52:35,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:35,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 03:52:35,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:35,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:35,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:35,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:52:35,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:35,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:35,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:52:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:35,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:35,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:35,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:52:35,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:35,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:35,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:35,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:35,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:35,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:36,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2271 backedges. 78 proven. 854 refuted. 0 times theorem prover too weak. 1339 trivial. 0 not checked. [2020-10-14 03:52:36,673 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [174084779] [2020-10-14 03:52:36,673 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:36,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:36,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269740039] [2020-10-14 03:52:36,674 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:36,674 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:36,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:36,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:36,675 INFO L87 Difference]: Start difference. First operand 17763 states and 19439 transitions. Second operand 7 states. [2020-10-14 03:52:39,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:39,335 INFO L93 Difference]: Finished difference Result 34838 states and 38181 transitions. [2020-10-14 03:52:39,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:52:39,335 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1221 [2020-10-14 03:52:39,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:39,367 INFO L225 Difference]: With dead ends: 34838 [2020-10-14 03:52:39,368 INFO L226 Difference]: Without dead ends: 17767 [2020-10-14 03:52:39,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:52:39,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17767 states. [2020-10-14 03:52:39,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17767 to 17763. [2020-10-14 03:52:39,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17763 states. [2020-10-14 03:52:39,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17763 states to 17763 states and 19435 transitions. [2020-10-14 03:52:39,662 INFO L78 Accepts]: Start accepts. Automaton has 17763 states and 19435 transitions. Word has length 1221 [2020-10-14 03:52:39,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:39,662 INFO L479 AbstractCegarLoop]: Abstraction has 17763 states and 19435 transitions. [2020-10-14 03:52:39,662 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:39,663 INFO L276 IsEmpty]: Start isEmpty. Operand 17763 states and 19435 transitions. [2020-10-14 03:52:39,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1312 [2020-10-14 03:52:39,702 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:39,703 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:52:39,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:52:39,703 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:39,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:39,704 INFO L82 PathProgramCache]: Analyzing trace with hash 884273000, now seen corresponding path program 1 times [2020-10-14 03:52:39,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:39,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14586480] [2020-10-14 03:52:39,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:39,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:39,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:40,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:40,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:44,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:44,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1337 [2020-10-14 03:52:44,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:52:44,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 03:52:44,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:44,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-14 03:52:44,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-14 03:52:44,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:45,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:45,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:45,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:45,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:45,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:45,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:45,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:45,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:45,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:45,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:45,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:45,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:45,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:45,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:45,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:45,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:45,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:52:45,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:45,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 03:52:45,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:45,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:45,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-14 03:52:45,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:45,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:52:45,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:45,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:45,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:45,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:52:45,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:45,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-10-14 03:52:45,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:45,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:45,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:45,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 163 [2020-10-14 03:52:45,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:45,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:52:45,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:45,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:45,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:45,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:52:45,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:45,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:52:45,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:45,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:45,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-14 03:52:45,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:45,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:45,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-14 03:52:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:45,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:45,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:45,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:52:45,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:45,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-14 03:52:45,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:45,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:45,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:52:45,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:45,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:45,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-14 03:52:45,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:45,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:45,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:45,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:52:45,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:45,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:52:45,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:45,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:45,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:45,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-14 03:52:45,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:45,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:45,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-14 03:52:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:45,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:45,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:45,966 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:52:45,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:45,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:52:45,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:45,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:52:45,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:45,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:45,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-14 03:52:46,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:46,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:46,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:46,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:52:46,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:46,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:52:46,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:46,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:46,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:52:46,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:46,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:46,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-14 03:52:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:46,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:46,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:46,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:52:46,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:46,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:52:46,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:46,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:52:46,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:46,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:46,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:52:46,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:46,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:46,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:46,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:52:46,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:46,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:52:46,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:46,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:46,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:46,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:46,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:46,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:47,520 INFO L134 CoverageAnalysis]: Checked inductivity of 3462 backedges. 287 proven. 741 refuted. 0 times theorem prover too weak. 2434 trivial. 0 not checked. [2020-10-14 03:52:47,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14586480] [2020-10-14 03:52:47,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:47,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:52:47,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137343914] [2020-10-14 03:52:47,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:52:47,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:47,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:52:47,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:52:47,523 INFO L87 Difference]: Start difference. First operand 17763 states and 19435 transitions. Second operand 8 states. [2020-10-14 03:52:52,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:52,423 INFO L93 Difference]: Finished difference Result 37548 states and 41396 transitions. [2020-10-14 03:52:52,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 03:52:52,424 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1311 [2020-10-14 03:52:52,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:52,465 INFO L225 Difference]: With dead ends: 37548 [2020-10-14 03:52:52,466 INFO L226 Difference]: Without dead ends: 20467 [2020-10-14 03:52:52,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2020-10-14 03:52:52,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20467 states. [2020-10-14 03:52:52,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20467 to 20467. [2020-10-14 03:52:52,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20467 states. [2020-10-14 03:52:52,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20467 states to 20467 states and 22344 transitions. [2020-10-14 03:52:52,802 INFO L78 Accepts]: Start accepts. Automaton has 20467 states and 22344 transitions. Word has length 1311 [2020-10-14 03:52:52,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:52,803 INFO L479 AbstractCegarLoop]: Abstraction has 20467 states and 22344 transitions. [2020-10-14 03:52:52,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:52:52,803 INFO L276 IsEmpty]: Start isEmpty. Operand 20467 states and 22344 transitions. [2020-10-14 03:52:52,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1511 [2020-10-14 03:52:52,850 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:52,851 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:52:52,851 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:52:52,851 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:52,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:52,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1810564618, now seen corresponding path program 1 times [2020-10-14 03:52:52,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:52,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518137220] [2020-10-14 03:52:52,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:53,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:53,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:53,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:53,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:53,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:58,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:58,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1538 [2020-10-14 03:52:58,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:58,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5144 [2020-10-14 03:52:58,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:58,229 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:58,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 677 [2020-10-14 03:52:58,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-10-14 03:52:58,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:52:58,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:58,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:58,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:58,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:58,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:58,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:58,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:58,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:58,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:58,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:58,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:58,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:58,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:58,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:58,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:52:58,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:58,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:52:58,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:58,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:58,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:58,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:58,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:52:58,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:58,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:58,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:58,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:52:58,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:58,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:52:58,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:58,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:58,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:58,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:58,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:52:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:58,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:58,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:58,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:52:58,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:58,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:52:58,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:58,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:58,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:58,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:58,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 03:52:58,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:58,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:58,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:58,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:52:58,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:58,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:52:58,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:58,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:58,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:52:58,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:58,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 03:52:58,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:58,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:58,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:58,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:52:58,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:58,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 03:52:58,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:58,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:58,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:58,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:58,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 145 [2020-10-14 03:52:58,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:58,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 813 [2020-10-14 03:52:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:58,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:58,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:58,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-14 03:52:58,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:58,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 03:52:58,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:58,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:58,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:58,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-14 03:52:58,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:58,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:58,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 955 [2020-10-14 03:52:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:58,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:58,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:58,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:52:58,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:58,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:52:58,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:58,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:52:58,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:58,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:58,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-14 03:52:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:58,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:59,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:59,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 03:52:59,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:59,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-14 03:52:59,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:59,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:59,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:59,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 03:52:59,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:59,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:59,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1203 [2020-10-14 03:52:59,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:59,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:59,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:59,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:52:59,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:59,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:52:59,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:59,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:59,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:59,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:52:59,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:59,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:59,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:52:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:59,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:59,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:59,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:52:59,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:59,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:52:59,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:59,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:59,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:59,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:00,221 INFO L134 CoverageAnalysis]: Checked inductivity of 4596 backedges. 671 proven. 524 refuted. 0 times theorem prover too weak. 3401 trivial. 0 not checked. [2020-10-14 03:53:00,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518137220] [2020-10-14 03:53:00,221 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:00,221 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:00,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937669412] [2020-10-14 03:53:00,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:00,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:00,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:00,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:00,223 INFO L87 Difference]: Start difference. First operand 20467 states and 22344 transitions. Second operand 7 states. [2020-10-14 03:53:03,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:03,532 INFO L93 Difference]: Finished difference Result 42968 states and 47064 transitions. [2020-10-14 03:53:03,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:53:03,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1510 [2020-10-14 03:53:03,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:03,580 INFO L225 Difference]: With dead ends: 42968 [2020-10-14 03:53:03,581 INFO L226 Difference]: Without dead ends: 23187 [2020-10-14 03:53:03,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:53:03,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23187 states. [2020-10-14 03:53:03,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23187 to 22487. [2020-10-14 03:53:03,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22487 states. [2020-10-14 03:53:03,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22487 states to 22487 states and 24218 transitions. [2020-10-14 03:53:03,897 INFO L78 Accepts]: Start accepts. Automaton has 22487 states and 24218 transitions. Word has length 1510 [2020-10-14 03:53:03,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:03,898 INFO L479 AbstractCegarLoop]: Abstraction has 22487 states and 24218 transitions. [2020-10-14 03:53:03,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:03,898 INFO L276 IsEmpty]: Start isEmpty. Operand 22487 states and 24218 transitions. [2020-10-14 03:53:03,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1607 [2020-10-14 03:53:03,939 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:03,942 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:03,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:53:03,943 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:03,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:03,943 INFO L82 PathProgramCache]: Analyzing trace with hash -5070285, now seen corresponding path program 1 times [2020-10-14 03:53:03,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:03,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1404318459] [2020-10-14 03:53:03,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:04,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:04,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:04,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:05,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:09,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:09,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1632 [2020-10-14 03:53:09,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:53:09,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5240 [2020-10-14 03:53:09,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:09,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:09,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:09,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 257 [2020-10-14 03:53:09,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 252 [2020-10-14 03:53:09,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:09,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:09,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:09,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:09,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:09,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:09,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:09,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:53:09,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:09,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:09,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:09,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:09,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:09,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:09,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:09,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:09,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:09,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:09,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:53:09,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:09,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-14 03:53:09,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:09,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:09,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 242 [2020-10-14 03:53:09,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:09,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:53:09,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:09,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:09,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:09,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:53:09,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:09,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-14 03:53:09,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:09,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:09,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:09,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:09,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-14 03:53:09,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:10,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-14 03:53:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:10,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:10,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:10,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:53:10,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:10,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-14 03:53:10,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:10,589 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:10,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:10,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 274 [2020-10-14 03:53:10,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:10,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:10,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 780 [2020-10-14 03:53:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:10,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:10,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:10,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:53:10,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:10,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:53:10,723 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:10,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 03:53:10,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:10,724 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:10,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 863 [2020-10-14 03:53:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:10,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:10,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:10,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:53:10,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:10,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-14 03:53:10,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:10,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-14 03:53:10,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:10,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:10,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1051 [2020-10-14 03:53:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:10,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:10,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:10,958 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:10,958 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:10,958 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:53:10,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:10,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:10,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:10,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:53:10,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:10,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:10,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1161 [2020-10-14 03:53:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:11,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:11,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:11,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 03:53:11,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:11,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 03:53:11,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:11,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-10-14 03:53:11,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:11,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:11,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1299 [2020-10-14 03:53:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:11,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:11,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:11,308 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:53:11,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:11,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 03:53:11,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:11,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:53:11,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:11,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:11,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:11,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:11,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:11,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:11,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:53:11,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:11,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:53:11,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:11,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:11,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:11,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:11,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:11,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4302 backedges. 372 proven. 1001 refuted. 0 times theorem prover too weak. 2929 trivial. 0 not checked. [2020-10-14 03:53:13,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1404318459] [2020-10-14 03:53:13,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:13,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:13,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724082886] [2020-10-14 03:53:13,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:13,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:13,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:13,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:13,028 INFO L87 Difference]: Start difference. First operand 22487 states and 24218 transitions. Second operand 7 states. [2020-10-14 03:53:16,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:16,223 INFO L93 Difference]: Finished difference Result 44288 states and 47741 transitions. [2020-10-14 03:53:16,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:53:16,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1606 [2020-10-14 03:53:16,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:16,259 INFO L225 Difference]: With dead ends: 44288 [2020-10-14 03:53:16,259 INFO L226 Difference]: Without dead ends: 22487 [2020-10-14 03:53:16,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:53:16,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22487 states. [2020-10-14 03:53:16,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22487 to 22487. [2020-10-14 03:53:16,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22487 states. [2020-10-14 03:53:16,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22487 states to 22487 states and 24216 transitions. [2020-10-14 03:53:16,581 INFO L78 Accepts]: Start accepts. Automaton has 22487 states and 24216 transitions. Word has length 1606 [2020-10-14 03:53:16,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:16,581 INFO L479 AbstractCegarLoop]: Abstraction has 22487 states and 24216 transitions. [2020-10-14 03:53:16,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:16,582 INFO L276 IsEmpty]: Start isEmpty. Operand 22487 states and 24216 transitions. [2020-10-14 03:53:16,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1621 [2020-10-14 03:53:16,628 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:16,629 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:53:16,629 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:53:16,629 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:16,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:16,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1905739056, now seen corresponding path program 1 times [2020-10-14 03:53:16,630 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:16,630 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518603218] [2020-10-14 03:53:16,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:16,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:17,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:17,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:22,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1648 [2020-10-14 03:53:22,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:53:22,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5280 [2020-10-14 03:53:22,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:22,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:22,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:22,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1189 [2020-10-14 03:53:22,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 03:53:22,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:22,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:22,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:22,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:22,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:22,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:22,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:53:22,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:22,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:22,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:22,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:22,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:22,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:22,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:22,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:53:22,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:22,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:53:22,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:22,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:22,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:22,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:22,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:53:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:22,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:22,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:53:22,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:22,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:53:22,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:22,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:22,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:22,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:22,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:22,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:22,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:53:22,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:22,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:22,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:53:22,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:22,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 03:53:22,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:22,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:22,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:22,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:22,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 03:53:22,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:22,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:22,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:53:22,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:22,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 03:53:22,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:22,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:22,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:22,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:22,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:22,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:22,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 794 [2020-10-14 03:53:22,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:22,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:22,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:53:22,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:22,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 03:53:22,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:22,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:22,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:22,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:22,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:22,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:22,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-14 03:53:22,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:22,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:22,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:53:22,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:22,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:53:22,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:22,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:22,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:22,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:22,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1065 [2020-10-14 03:53:22,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:22,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:22,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:53:22,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:22,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:53:22,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:22,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:22,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:22,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:22,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:53:22,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:22,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1175 [2020-10-14 03:53:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:22,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:22,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:22,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 03:53:22,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:22,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-14 03:53:22,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:22,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:22,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:53:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:53:22,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1313 [2020-10-14 03:53:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:23,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:23,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:23,134 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:53:23,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:23,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 03:53:23,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:23,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:23,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:23,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:53:23,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:23,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:23,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:23,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:23,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:23,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:23,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:53:23,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:23,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:53:23,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:23,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:23,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:23,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:24,415 INFO L134 CoverageAnalysis]: Checked inductivity of 5037 backedges. 1028 proven. 137 refuted. 0 times theorem prover too weak. 3872 trivial. 0 not checked. [2020-10-14 03:53:24,416 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518603218] [2020-10-14 03:53:24,416 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:24,416 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:53:24,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013188096] [2020-10-14 03:53:24,417 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:53:24,417 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:24,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:53:24,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:53:24,418 INFO L87 Difference]: Start difference. First operand 22487 states and 24216 transitions. Second operand 8 states. [2020-10-14 03:53:28,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:28,867 INFO L93 Difference]: Finished difference Result 46310 states and 50153 transitions. [2020-10-14 03:53:28,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:53:28,868 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1620 [2020-10-14 03:53:28,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:28,903 INFO L225 Difference]: With dead ends: 46310 [2020-10-14 03:53:28,903 INFO L226 Difference]: Without dead ends: 21791 [2020-10-14 03:53:28,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:53:28,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21791 states. [2020-10-14 03:53:29,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21791 to 21791. [2020-10-14 03:53:29,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21791 states. [2020-10-14 03:53:29,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21791 states to 21791 states and 23215 transitions. [2020-10-14 03:53:29,177 INFO L78 Accepts]: Start accepts. Automaton has 21791 states and 23215 transitions. Word has length 1620 [2020-10-14 03:53:29,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:29,179 INFO L479 AbstractCegarLoop]: Abstraction has 21791 states and 23215 transitions. [2020-10-14 03:53:29,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:53:29,179 INFO L276 IsEmpty]: Start isEmpty. Operand 21791 states and 23215 transitions. [2020-10-14 03:53:29,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1720 [2020-10-14 03:53:29,218 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:29,219 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:53:29,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:53:29,220 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:29,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:29,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1657057436, now seen corresponding path program 1 times [2020-10-14 03:53:29,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:29,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979858486] [2020-10-14 03:53:29,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:29,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:29,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:29,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:29,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:33,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:34,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1749 [2020-10-14 03:53:34,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:53:34,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 03:53:34,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:34,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:34,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:34,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 474 [2020-10-14 03:53:34,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 03:53:34,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:34,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:34,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:34,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:34,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:34,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:53:34,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:34,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:34,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:34,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:34,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:34,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:34,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:34,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:53:34,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:34,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:53:34,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:34,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:34,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:34,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:34,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:34,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:34,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:53:34,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:34,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:34,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-14 03:53:34,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:34,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-14 03:53:34,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:34,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:34,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:53:34,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:34,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 470 [2020-10-14 03:53:34,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:34,923 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:34,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:34,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:53:34,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:34,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:53:34,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:34,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:34,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:53:34,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:35,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 599 [2020-10-14 03:53:35,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:35,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:35,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:35,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:53:35,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:35,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:53:35,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:35,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:35,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:53:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:35,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:35,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 669 [2020-10-14 03:53:35,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:35,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:35,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:35,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:53:35,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:53:35,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:35,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:35,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:35,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:53:35,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:35,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:35,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 784 [2020-10-14 03:53:35,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:35,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:35,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:35,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:53:35,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:35,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-14 03:53:35,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:35,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:53:35,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:35,321 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:35,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:35,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:35,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:35,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:35,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:53:35,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:35,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:53:35,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:35,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:35,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:35,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:35,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:53:35,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1111 [2020-10-14 03:53:35,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:35,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:35,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:35,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:53:35,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:35,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:53:35,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:35,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:53:35,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:35,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:35,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:35,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:35,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:35,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:35,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:53:35,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:35,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:53:35,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:35,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:35,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:35,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:35,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:35,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:35,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1412 [2020-10-14 03:53:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:35,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:35,731 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:35,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:53:35,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:35,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:53:35,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:35,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:35,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:35,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:53:35,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:35,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:35,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:35,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:35,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:35,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:53:35,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:35,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:53:35,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:35,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:35,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:35,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:35,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:35,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:37,397 INFO L134 CoverageAnalysis]: Checked inductivity of 4429 backedges. 401 proven. 559 refuted. 0 times theorem prover too weak. 3469 trivial. 0 not checked. [2020-10-14 03:53:37,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979858486] [2020-10-14 03:53:37,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:37,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:53:37,398 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385248927] [2020-10-14 03:53:37,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:53:37,399 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:37,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:53:37,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:53:37,400 INFO L87 Difference]: Start difference. First operand 21791 states and 23215 transitions. Second operand 8 states. [2020-10-14 03:53:41,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:41,348 INFO L93 Difference]: Finished difference Result 44598 states and 47554 transitions. [2020-10-14 03:53:41,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:53:41,350 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1719 [2020-10-14 03:53:41,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:41,390 INFO L225 Difference]: With dead ends: 44598 [2020-10-14 03:53:41,390 INFO L226 Difference]: Without dead ends: 23493 [2020-10-14 03:53:41,415 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:53:41,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23493 states. [2020-10-14 03:53:41,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23493 to 22817. [2020-10-14 03:53:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22817 states. [2020-10-14 03:53:41,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22817 states to 22817 states and 24214 transitions. [2020-10-14 03:53:41,664 INFO L78 Accepts]: Start accepts. Automaton has 22817 states and 24214 transitions. Word has length 1719 [2020-10-14 03:53:41,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:41,665 INFO L479 AbstractCegarLoop]: Abstraction has 22817 states and 24214 transitions. [2020-10-14 03:53:41,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:53:41,665 INFO L276 IsEmpty]: Start isEmpty. Operand 22817 states and 24214 transitions. [2020-10-14 03:53:41,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1722 [2020-10-14 03:53:41,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:41,702 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:53:41,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:53:41,702 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:41,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:41,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1462226880, now seen corresponding path program 1 times [2020-10-14 03:53:41,703 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:41,703 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888487544] [2020-10-14 03:53:41,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:41,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:42,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:42,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:42,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:46,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:47,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:47,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1751 [2020-10-14 03:53:47,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:53:47,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5090 [2020-10-14 03:53:47,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:47,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 476 [2020-10-14 03:53:47,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-10-14 03:53:47,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:47,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:53:47,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:47,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:47,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:47,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:53:47,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:47,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:53:47,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:47,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:47,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:47,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:47,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:47,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:47,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:53:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:47,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:47,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:47,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:53:47,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:47,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:53:47,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:47,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:47,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:47,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:47,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:47,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:53:47,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:47,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:47,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:47,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 03:53:47,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:47,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-14 03:53:47,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:47,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:53:47,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:47,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 220 [2020-10-14 03:53:47,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:47,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 03:53:47,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:47,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:47,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:47,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:53:47,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:47,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:53:47,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:47,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:47,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:47,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:53:47,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 03:53:47,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:47,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-14 03:53:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:47,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:47,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:47,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:53:47,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:47,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 03:53:47,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:47,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 03:53:47,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:47,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:47,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-10-14 03:53:47,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:47,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:47,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:47,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:53:47,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:47,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 03:53:47,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:47,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-14 03:53:47,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:47,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:47,634 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2020-10-14 03:53:47,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:47,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:47,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:47,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:53:47,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:47,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 03:53:47,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:47,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:53:47,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:47,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:47,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:47,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:47,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:47,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:53:47,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:47,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:53:47,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:47,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:47,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:47,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:47,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:47,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:47,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1113 [2020-10-14 03:53:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:47,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:48,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:48,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:53:48,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:48,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 03:53:48,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:48,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:48,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:48,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:53:48,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:48,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:48,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:48,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:48,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:48,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:48,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:53:48,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:48,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:53:48,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:48,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:48,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:48,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:48,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1414 [2020-10-14 03:53:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:48,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:48,228 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:48,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:53:48,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:48,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:53:48,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:48,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:48,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:48,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:53:48,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:48,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:48,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:53:48,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:48,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:48,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:48,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:53:48,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:53:48,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:53:48,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:48,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:48,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:53:48,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:53:48,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:53:48,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:53:49,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4437 backedges. 401 proven. 559 refuted. 0 times theorem prover too weak. 3477 trivial. 0 not checked. [2020-10-14 03:53:49,465 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888487544] [2020-10-14 03:53:49,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:53:49,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:53:49,466 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712582135] [2020-10-14 03:53:49,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:53:49,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:53:49,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:53:49,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:53:49,468 INFO L87 Difference]: Start difference. First operand 22817 states and 24214 transitions. Second operand 7 states. [2020-10-14 03:53:54,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:53:54,250 INFO L93 Difference]: Finished difference Result 45283 states and 48084 transitions. [2020-10-14 03:53:54,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:53:54,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1721 [2020-10-14 03:53:54,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:53:54,283 INFO L225 Difference]: With dead ends: 45283 [2020-10-14 03:53:54,284 INFO L226 Difference]: Without dead ends: 23152 [2020-10-14 03:53:54,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:53:54,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23152 states. [2020-10-14 03:53:54,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23152 to 23152. [2020-10-14 03:53:54,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23152 states. [2020-10-14 03:53:54,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23152 states to 23152 states and 24522 transitions. [2020-10-14 03:53:54,555 INFO L78 Accepts]: Start accepts. Automaton has 23152 states and 24522 transitions. Word has length 1721 [2020-10-14 03:53:54,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:53:54,556 INFO L479 AbstractCegarLoop]: Abstraction has 23152 states and 24522 transitions. [2020-10-14 03:53:54,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:53:54,556 INFO L276 IsEmpty]: Start isEmpty. Operand 23152 states and 24522 transitions. [2020-10-14 03:53:54,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1755 [2020-10-14 03:53:54,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:53:54,598 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 03:53:54,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:53:54,598 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:53:54,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:53:54,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1076360153, now seen corresponding path program 1 times [2020-10-14 03:53:54,599 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:53:54,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [957574963] [2020-10-14 03:53:54,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:53:54,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:53:54,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:55,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:55,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:59,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:53:59,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:53:59,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1784 [2020-10-14 03:53:59,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:53:59,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5198 [2020-10-14 03:53:59,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:53:59,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:53:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:53:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 712 [2020-10-14 03:53:59,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-14 03:53:59,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:00,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:54:00,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:00,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:00,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:00,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:54:00,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:00,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:54:00,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:00,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:00,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:00,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:00,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:00,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:00,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:54:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:00,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:00,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:00,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:54:00,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:00,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 03:54:00,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:00,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:00,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:00,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:00,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:00,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:00,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:54:00,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:00,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:00,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:00,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-14 03:54:00,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:00,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:54:00,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:00,218 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:00,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:00,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:00,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:00,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:00,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 472 [2020-10-14 03:54:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:00,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:00,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:00,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:54:00,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:00,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:54:00,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:00,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:00,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:00,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:00,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:00,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:00,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 635 [2020-10-14 03:54:00,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:00,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:00,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:00,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:54:00,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:00,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 03:54:00,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:00,335 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:54:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:00,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:54:00,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:00,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 704 [2020-10-14 03:54:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:00,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:00,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:00,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:54:00,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:00,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 03:54:00,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:00,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:54:00,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-14 03:54:00,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:00,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 819 [2020-10-14 03:54:00,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:00,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:00,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:00,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 330 [2020-10-14 03:54:00,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:00,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-14 03:54:00,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:00,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-10-14 03:54:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:00,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:00,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:54:00,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:00,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:00,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:00,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-14 03:54:00,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:00,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:54:00,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:00,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:00,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:00,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:00,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:00,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:00,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1146 [2020-10-14 03:54:00,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:01,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:01,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:01,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:54:01,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:01,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1077 [2020-10-14 03:54:01,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:01,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:01,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:01,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:54:01,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:01,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:01,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:54:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:01,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:01,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:01,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:54:01,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:01,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:54:01,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:01,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:01,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:01,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:01,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:01,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:01,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1447 [2020-10-14 03:54:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:01,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:01,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:01,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:54:01,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:01,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 03:54:01,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:01,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:01,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:01,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:54:01,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:01,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:02,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:54:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:02,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:02,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:02,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:54:02,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:02,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:54:02,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:02,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:02,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:02,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4600 backedges. 569 proven. 338 refuted. 0 times theorem prover too weak. 3693 trivial. 0 not checked. [2020-10-14 03:54:03,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [957574963] [2020-10-14 03:54:03,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:54:03,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:54:03,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428741854] [2020-10-14 03:54:03,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:54:03,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:54:03,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:54:03,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:54:03,270 INFO L87 Difference]: Start difference. First operand 23152 states and 24522 transitions. Second operand 7 states. [2020-10-14 03:54:06,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:54:06,543 INFO L93 Difference]: Finished difference Result 45967 states and 48712 transitions. [2020-10-14 03:54:06,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:54:06,549 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1754 [2020-10-14 03:54:06,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:54:06,578 INFO L225 Difference]: With dead ends: 45967 [2020-10-14 03:54:06,579 INFO L226 Difference]: Without dead ends: 23501 [2020-10-14 03:54:06,599 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:54:06,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23501 states. [2020-10-14 03:54:06,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23501 to 23495. [2020-10-14 03:54:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23495 states. [2020-10-14 03:54:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23495 states to 23495 states and 24550 transitions. [2020-10-14 03:54:06,846 INFO L78 Accepts]: Start accepts. Automaton has 23495 states and 24550 transitions. Word has length 1754 [2020-10-14 03:54:06,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:54:06,848 INFO L479 AbstractCegarLoop]: Abstraction has 23495 states and 24550 transitions. [2020-10-14 03:54:06,849 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:54:06,849 INFO L276 IsEmpty]: Start isEmpty. Operand 23495 states and 24550 transitions. [2020-10-14 03:54:06,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1783 [2020-10-14 03:54:06,899 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:54:06,904 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:54:06,904 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:54:06,904 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:54:06,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:54:06,905 INFO L82 PathProgramCache]: Analyzing trace with hash -264453150, now seen corresponding path program 1 times [2020-10-14 03:54:06,905 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:54:06,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1720678098] [2020-10-14 03:54:06,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:54:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:07,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:07,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:10,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:12,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:12,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1812 [2020-10-14 03:54:12,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:54:12,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 03:54:12,356 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:12,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:12,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:12,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 936 [2020-10-14 03:54:12,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:54:12,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:12,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:54:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:12,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:12,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:12,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:54:12,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:12,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:54:12,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:12,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:12,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:12,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:54:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:12,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:12,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:12,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-14 03:54:12,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:12,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:54:12,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:12,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:12,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:12,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:12,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:12,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:12,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-14 03:54:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:12,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:12,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:12,626 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:54:12,626 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:12,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:54:12,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:12,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:12,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:12,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:12,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:12,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:12,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-10-14 03:54:12,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:12,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:12,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:12,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:54:12,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:12,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:54:12,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:12,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:12,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:12,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:12,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:12,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:12,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 517 [2020-10-14 03:54:12,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:12,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:12,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:12,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-14 03:54:12,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:12,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 03:54:12,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:12,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:12,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:12,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:12,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 646 [2020-10-14 03:54:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:12,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:12,769 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:12,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:54:12,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:12,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:54:12,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:12,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:12,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:12,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:12,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 841 [2020-10-14 03:54:12,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:12,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:12,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:12,833 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:54:12,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:12,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 03:54:12,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:12,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:12,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:54:12,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:12,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-14 03:54:12,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:12,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 924 [2020-10-14 03:54:12,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:12,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:13,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:13,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:54:13,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:13,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-10-14 03:54:13,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:13,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:13,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:54:13,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:54:13,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:54:13,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:13,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1174 [2020-10-14 03:54:13,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:13,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:13,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:13,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-10-14 03:54:13,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:13,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 03:54:13,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:13,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 301 [2020-10-14 03:54:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:13,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:13,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:54:13,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:13,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:13,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:13,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 03:54:13,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:13,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:54:13,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:13,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:13,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:13,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:13,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1475 [2020-10-14 03:54:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:13,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:13,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:13,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 298 [2020-10-14 03:54:13,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:13,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-14 03:54:13,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:13,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:13,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:13,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 295 [2020-10-14 03:54:13,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:13,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:54:13,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:54:13,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:54:13,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:54:13,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:54:13,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 03:54:13,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:54:13,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:54:13,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:54:13,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:54:13,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:54:13,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:54:13,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:54:13,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0