/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_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 03:48:41,132 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 03:48:41,135 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 03:48:41,163 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 03:48:41,164 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 03:48:41,172 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 03:48:41,173 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 03:48:41,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 03:48:41,179 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 03:48:41,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 03:48:41,182 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 03:48:41,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 03:48:41,184 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 03:48:41,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 03:48:41,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 03:48:41,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 03:48:41,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 03:48:41,194 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 03:48:41,196 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 03:48:41,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 03:48:41,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 03:48:41,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 03:48:41,206 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 03:48:41,207 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 03:48:41,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 03:48:41,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 03:48:41,219 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 03:48:41,221 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 03:48:41,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 03:48:41,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 03:48:41,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 03:48:41,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 03:48:41,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 03:48:41,225 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 03:48:41,226 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 03:48:41,226 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 03:48:41,227 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 03:48:41,227 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 03:48:41,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 03:48:41,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 03:48:41,230 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 03:48:41,231 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 03:48:41,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 03:48:41,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 03:48:41,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 03:48:41,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 03:48:41,274 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 03:48:41,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 03:48:41,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 03:48:41,274 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 03:48:41,274 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 03:48:41,274 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 03:48:41,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 03:48:41,275 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 03:48:41,276 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 03:48:41,277 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 03:48:41,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 03:48:41,277 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 03:48:41,277 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 03:48:41,277 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 03:48:41,277 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 03:48:41,278 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 03:48:41,278 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 03:48:41,278 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 03:48:41,278 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 03:48:41,278 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 03:48:41,279 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 03:48:41,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 03:48:41,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 03:48:41,279 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 03:48:41,279 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 03:48:41,279 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 03:48:41,613 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 03:48:41,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 03:48:41,636 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 03:48:41,638 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 03:48:41,640 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 03:48:41,640 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label38.c [2020-10-14 03:48:41,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7834006c8/77e1308a320147e9b9d4bce98f193e5e/FLAG9bd64192f [2020-10-14 03:48:42,302 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 03:48:42,303 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label38.c [2020-10-14 03:48:42,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7834006c8/77e1308a320147e9b9d4bce98f193e5e/FLAG9bd64192f [2020-10-14 03:48:42,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/7834006c8/77e1308a320147e9b9d4bce98f193e5e [2020-10-14 03:48:42,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 03:48:42,487 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 03:48:42,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 03:48:42,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 03:48:42,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 03:48:42,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:48:42" (1/1) ... [2020-10-14 03:48:42,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1604f3be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:42, skipping insertion in model container [2020-10-14 03:48:42,499 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:48:42" (1/1) ... [2020-10-14 03:48:42,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 03:48:42,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 03:48:43,388 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:48:43,397 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 03:48:43,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 03:48:43,742 INFO L208 MainTranslator]: Completed translation [2020-10-14 03:48:43,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:43 WrapperNode [2020-10-14 03:48:43,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 03:48:43,745 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 03:48:43,745 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 03:48:43,745 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 03:48:43,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:43" (1/1) ... [2020-10-14 03:48:43,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:43" (1/1) ... [2020-10-14 03:48:43,788 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:43" (1/1) ... [2020-10-14 03:48:43,789 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:43" (1/1) ... [2020-10-14 03:48:43,847 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:43" (1/1) ... [2020-10-14 03:48:43,865 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:43" (1/1) ... [2020-10-14 03:48:43,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:43" (1/1) ... [2020-10-14 03:48:43,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 03:48:43,899 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 03:48:43,899 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 03:48:43,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 03:48:43,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:43" (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 03:48:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 03:48:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 03:48:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 03:48:43,980 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-14 03:48:43,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 03:48:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 03:48:43,981 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-14 03:48:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 03:48:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 03:48:43,982 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 03:48:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 03:48:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 03:48:43,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 03:48:46,289 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 03:48:46,290 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 03:48:46,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:48:46 BoogieIcfgContainer [2020-10-14 03:48:46,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 03:48:46,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 03:48:46,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 03:48:46,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 03:48:46,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:48:42" (1/3) ... [2020-10-14 03:48:46,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37dd8bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:48:46, skipping insertion in model container [2020-10-14 03:48:46,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:48:43" (2/3) ... [2020-10-14 03:48:46,305 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37dd8bd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:48:46, skipping insertion in model container [2020-10-14 03:48:46,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:48:46" (3/3) ... [2020-10-14 03:48:46,307 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label38.c [2020-10-14 03:48:46,318 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 03:48:46,327 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 03:48:46,342 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 03:48:46,370 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 03:48:46,370 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 03:48:46,370 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 03:48:46,371 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 03:48:46,371 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 03:48:46,371 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 03:48:46,371 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 03:48:46,371 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 03:48:46,398 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-14 03:48:46,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-14 03:48:46,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:46,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:46,407 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:46,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:46,414 INFO L82 PathProgramCache]: Analyzing trace with hash 47604442, now seen corresponding path program 1 times [2020-10-14 03:48:46,424 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:46,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410783996] [2020-10-14 03:48:46,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:46,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:46,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:46,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:46,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-14 03:48:46,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:46,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-14 03:48:46,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:46,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:46,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:48:46,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 03:48:46,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 03:48:46,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 03:48:46,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:46,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:46,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:46,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:46,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:46,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 03:48:46,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:46,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:46,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:46,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:46,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 03:48:46,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:46,999 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 03:48:47,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410783996] [2020-10-14 03:48:47,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 03:48:47,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-14 03:48:47,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945820067] [2020-10-14 03:48:47,011 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:48:47,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:47,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:48:47,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:48:47,032 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 5 states. [2020-10-14 03:48:52,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:48:52,207 INFO L93 Difference]: Finished difference Result 1515 states and 2848 transitions. [2020-10-14 03:48:52,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 03:48:52,209 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-10-14 03:48:52,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:48:52,237 INFO L225 Difference]: With dead ends: 1515 [2020-10-14 03:48:52,238 INFO L226 Difference]: Without dead ends: 1038 [2020-10-14 03:48:52,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:48:52,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-14 03:48:52,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1031. [2020-10-14 03:48:52,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1031 states. [2020-10-14 03:48:52,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1031 states to 1031 states and 1642 transitions. [2020-10-14 03:48:52,383 INFO L78 Accepts]: Start accepts. Automaton has 1031 states and 1642 transitions. Word has length 17 [2020-10-14 03:48:52,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:48:52,384 INFO L479 AbstractCegarLoop]: Abstraction has 1031 states and 1642 transitions. [2020-10-14 03:48:52,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:48:52,384 INFO L276 IsEmpty]: Start isEmpty. Operand 1031 states and 1642 transitions. [2020-10-14 03:48:52,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-14 03:48:52,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:48:52,406 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:48:52,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 03:48:52,408 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:48:52,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:48:52,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1828903046, now seen corresponding path program 1 times [2020-10-14 03:48:52,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:48:52,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844411151] [2020-10-14 03:48:52,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:48:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:52,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:52,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:53,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:54,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:57,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:57,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 03:48:57,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:48:57,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4746 [2020-10-14 03:48:57,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:57,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:57,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:57,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-14 03:48:57,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:48:57,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:48:57,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:48:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:57,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:57,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:57,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:48:57,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:57,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:48:57,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:57,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:48:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:57,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:48:57,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:57,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:48:57,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:57,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:57,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:57,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-10-14 03:48:57,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:57,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 03:48:57,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:57,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:57,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:48:57,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:48:57,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 03:48:57,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:57,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-14 03:48:57,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:48:57,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:48:57,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:48:57,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:48:57,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:48:57,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 171 [2020-10-14 03:48:57,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:48:57,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:48:57,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:48:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:48:57,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 03:48:57,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:48:57,804 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 03:48:57,805 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844411151] [2020-10-14 03:48:57,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:48:57,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:48:57,806 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009725548] [2020-10-14 03:48:57,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:48:57,809 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:48:57,809 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:48:57,809 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:48:57,810 INFO L87 Difference]: Start difference. First operand 1031 states and 1642 transitions. Second operand 8 states. [2020-10-14 03:49:02,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:02,038 INFO L93 Difference]: Finished difference Result 2769 states and 4527 transitions. [2020-10-14 03:49:02,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 03:49:02,039 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2020-10-14 03:49:02,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:02,058 INFO L225 Difference]: With dead ends: 2769 [2020-10-14 03:49:02,059 INFO L226 Difference]: Without dead ends: 1744 [2020-10-14 03:49:02,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:49:02,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2020-10-14 03:49:02,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1727. [2020-10-14 03:49:02,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1727 states. [2020-10-14 03:49:02,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1727 states to 1727 states and 2598 transitions. [2020-10-14 03:49:02,152 INFO L78 Accepts]: Start accepts. Automaton has 1727 states and 2598 transitions. Word has length 199 [2020-10-14 03:49:02,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:02,157 INFO L479 AbstractCegarLoop]: Abstraction has 1727 states and 2598 transitions. [2020-10-14 03:49:02,157 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:49:02,158 INFO L276 IsEmpty]: Start isEmpty. Operand 1727 states and 2598 transitions. [2020-10-14 03:49:02,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-10-14 03:49:02,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:02,165 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:02,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 03:49:02,165 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:02,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:02,166 INFO L82 PathProgramCache]: Analyzing trace with hash 419209642, now seen corresponding path program 1 times [2020-10-14 03:49:02,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:02,166 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1574391018] [2020-10-14 03:49:02,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:02,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:02,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:02,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:02,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:04,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:04,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:49:04,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:49:04,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2390 [2020-10-14 03:49:04,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:04,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:04,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:04,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 03:49:04,604 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:49:04,604 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:04,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:04,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:04,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:04,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:04,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:04,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 03:49:04,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:04,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:04,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:04,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:04,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:04,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:04,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:04,769 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:04,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:04,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:49:04,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:04,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-14 03:49:04,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:04,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:04,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:04,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:04,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:49:04,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:04,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 03:49:04,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:04,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:05,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:05,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-14 03:49:05,050 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:05,050 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-14 03:49:05,050 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:05,050 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:05,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:05,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:05,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-10-14 03:49:05,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:05,217 INFO L134 CoverageAnalysis]: Checked inductivity of 127 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:49:05,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1574391018] [2020-10-14 03:49:05,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:05,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:05,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482228153] [2020-10-14 03:49:05,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:05,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:05,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:05,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:05,221 INFO L87 Difference]: Start difference. First operand 1727 states and 2598 transitions. Second operand 7 states. [2020-10-14 03:49:10,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:10,907 INFO L93 Difference]: Finished difference Result 4524 states and 6798 transitions. [2020-10-14 03:49:10,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:49:10,908 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-10-14 03:49:10,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:10,925 INFO L225 Difference]: With dead ends: 4524 [2020-10-14 03:49:10,925 INFO L226 Difference]: Without dead ends: 2446 [2020-10-14 03:49:10,939 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 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 03:49:10,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2446 states. [2020-10-14 03:49:11,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2446 to 2423. [2020-10-14 03:49:11,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-10-14 03:49:11,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 2799 transitions. [2020-10-14 03:49:11,030 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 2799 transitions. Word has length 239 [2020-10-14 03:49:11,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:11,032 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 2799 transitions. [2020-10-14 03:49:11,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:11,032 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 2799 transitions. [2020-10-14 03:49:11,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-14 03:49:11,037 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:11,037 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:49:11,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 03:49:11,038 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:11,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:11,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1131626995, now seen corresponding path program 1 times [2020-10-14 03:49:11,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:11,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132616522] [2020-10-14 03:49:11,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:11,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:11,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:11,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:13,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:14,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:14,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-14 03:49:14,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:14,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2936 [2020-10-14 03:49:14,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:14,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 125 [2020-10-14 03:49:14,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:49:14,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:14,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:14,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:14,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:14,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:14,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:14,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:49:14,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:14,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:14,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:14,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:14,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:14,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 03:49:14,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:14,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:14,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:14,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:14,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:49:14,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:14,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-14 03:49:14,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:14,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:14,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:49:14,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:14,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-10-14 03:49:14,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:14,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:14,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:14,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:14,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:14,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-10-14 03:49:14,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:14,412 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:14,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:14,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:49:14,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:49:14,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132616522] [2020-10-14 03:49:14,544 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:14,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:14,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16245282] [2020-10-14 03:49:14,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:14,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:14,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:14,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:14,546 INFO L87 Difference]: Start difference. First operand 2423 states and 2799 transitions. Second operand 7 states. [2020-10-14 03:49:18,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:18,808 INFO L93 Difference]: Finished difference Result 6978 states and 8327 transitions. [2020-10-14 03:49:18,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:49:18,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-10-14 03:49:18,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:18,840 INFO L225 Difference]: With dead ends: 6978 [2020-10-14 03:49:18,841 INFO L226 Difference]: Without dead ends: 4565 [2020-10-14 03:49:18,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:18,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4565 states. [2020-10-14 03:49:18,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4565 to 3467. [2020-10-14 03:49:18,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3467 states. [2020-10-14 03:49:18,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 3900 transitions. [2020-10-14 03:49:18,996 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 3900 transitions. Word has length 242 [2020-10-14 03:49:18,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:18,996 INFO L479 AbstractCegarLoop]: Abstraction has 3467 states and 3900 transitions. [2020-10-14 03:49:18,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:18,997 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 3900 transitions. [2020-10-14 03:49:19,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2020-10-14 03:49:19,005 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:19,006 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:19,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 03:49:19,006 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:19,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:19,007 INFO L82 PathProgramCache]: Analyzing trace with hash 819298270, now seen corresponding path program 1 times [2020-10-14 03:49:19,007 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:19,007 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260628210] [2020-10-14 03:49:19,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:19,088 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:19,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:19,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:20,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 283 [2020-10-14 03:49:22,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:22,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3392 [2020-10-14 03:49:22,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-14 03:49:22,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:49:22,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:22,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,536 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,536 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:22,536 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:22,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:22,537 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,537 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:22,537 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:22,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:22,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:22,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:49:22,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:22,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-14 03:49:22,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:22,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:22,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:49:22,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-14 03:49:22,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:22,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:22,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:22,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:22,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:22,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-14 03:49:22,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:22,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:22,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:22,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:22,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:49:22,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:23,299 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:49:23,300 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260628210] [2020-10-14 03:49:23,300 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:23,300 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:49:23,301 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902606934] [2020-10-14 03:49:23,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:49:23,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:23,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:49:23,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:49:23,302 INFO L87 Difference]: Start difference. First operand 3467 states and 3900 transitions. Second operand 8 states. [2020-10-14 03:49:29,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:29,564 INFO L93 Difference]: Finished difference Result 8721 states and 10175 transitions. [2020-10-14 03:49:29,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:49:29,564 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 271 [2020-10-14 03:49:29,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:29,593 INFO L225 Difference]: With dead ends: 8721 [2020-10-14 03:49:29,593 INFO L226 Difference]: Without dead ends: 5601 [2020-10-14 03:49:29,604 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-14 03:49:29,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5601 states. [2020-10-14 03:49:29,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5601 to 5194. [2020-10-14 03:49:29,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5194 states. [2020-10-14 03:49:29,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5194 states to 5194 states and 5772 transitions. [2020-10-14 03:49:29,735 INFO L78 Accepts]: Start accepts. Automaton has 5194 states and 5772 transitions. Word has length 271 [2020-10-14 03:49:29,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:29,736 INFO L479 AbstractCegarLoop]: Abstraction has 5194 states and 5772 transitions. [2020-10-14 03:49:29,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:49:29,736 INFO L276 IsEmpty]: Start isEmpty. Operand 5194 states and 5772 transitions. [2020-10-14 03:49:29,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-14 03:49:29,744 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:29,744 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:29,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 03:49:29,745 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:29,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:29,745 INFO L82 PathProgramCache]: Analyzing trace with hash -31067757, now seen corresponding path program 1 times [2020-10-14 03:49:29,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:29,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560935644] [2020-10-14 03:49:29,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:29,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:30,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:30,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:32,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:33,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:33,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-10-14 03:49:33,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:49:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3279 [2020-10-14 03:49:33,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:33,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 205 [2020-10-14 03:49:33,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-14 03:49:33,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:33,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:33,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:33,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:33,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:33,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:33,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:49:33,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:33,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:33,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:33,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:33,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:33,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:33,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:33,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:33,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:33,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:49:33,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:33,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-14 03:49:33,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:33,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:33,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:49:33,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:33,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-10-14 03:49:33,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:33,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:33,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:33,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:49:33,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:33,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-14 03:49:33,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:33,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:33,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:33,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:33,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-14 03:49:33,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:33,766 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 03:49:33,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560935644] [2020-10-14 03:49:33,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:33,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:33,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467914410] [2020-10-14 03:49:33,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:33,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:33,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:33,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:33,770 INFO L87 Difference]: Start difference. First operand 5194 states and 5772 transitions. Second operand 7 states. [2020-10-14 03:49:36,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:36,774 INFO L93 Difference]: Finished difference Result 12439 states and 14081 transitions. [2020-10-14 03:49:36,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:49:36,775 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 322 [2020-10-14 03:49:36,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:36,802 INFO L225 Difference]: With dead ends: 12439 [2020-10-14 03:49:36,802 INFO L226 Difference]: Without dead ends: 7259 [2020-10-14 03:49:36,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:49:36,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7259 states. [2020-10-14 03:49:36,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7259 to 6222. [2020-10-14 03:49:36,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6222 states. [2020-10-14 03:49:36,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6222 states to 6222 states and 6888 transitions. [2020-10-14 03:49:36,953 INFO L78 Accepts]: Start accepts. Automaton has 6222 states and 6888 transitions. Word has length 322 [2020-10-14 03:49:36,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:36,954 INFO L479 AbstractCegarLoop]: Abstraction has 6222 states and 6888 transitions. [2020-10-14 03:49:36,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:36,954 INFO L276 IsEmpty]: Start isEmpty. Operand 6222 states and 6888 transitions. [2020-10-14 03:49:36,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 570 [2020-10-14 03:49:36,975 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:36,976 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:36,976 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 03:49:36,976 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:36,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:36,977 INFO L82 PathProgramCache]: Analyzing trace with hash -1270867782, now seen corresponding path program 1 times [2020-10-14 03:49:36,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:36,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [47276849] [2020-10-14 03:49:36,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:37,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:37,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:37,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:38,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:38,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:39,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:39,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:42,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:42,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 583 [2020-10-14 03:49:42,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:49:42,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-14 03:49:42,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:42,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:42,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:42,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 291 [2020-10-14 03:49:42,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:49:42,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:42,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:42,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:42,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:42,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:42,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:42,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:42,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:49:42,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:42,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:42,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:42,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:42,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:42,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:42,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 03:49:42,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:42,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:49:42,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:42,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:42,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:42,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:42,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 03:49:42,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:42,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:42,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:42,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-14 03:49:42,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:42,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:49:42,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:42,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:42,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:42,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:42,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-14 03:49:42,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:42,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2020-10-14 03:49:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:42,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:42,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:42,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:42,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:42,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 03:49:42,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:42,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:42,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:42,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:42,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:49:42,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:43,384 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 308 proven. 2 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2020-10-14 03:49:43,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [47276849] [2020-10-14 03:49:43,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:43,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:49:43,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123097862] [2020-10-14 03:49:43,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:49:43,386 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:43,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:49:43,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:49:43,386 INFO L87 Difference]: Start difference. First operand 6222 states and 6888 transitions. Second operand 7 states. [2020-10-14 03:49:46,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:46,777 INFO L93 Difference]: Finished difference Result 12807 states and 14186 transitions. [2020-10-14 03:49:46,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:49:46,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 569 [2020-10-14 03:49:46,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:46,819 INFO L225 Difference]: With dead ends: 12807 [2020-10-14 03:49:46,820 INFO L226 Difference]: Without dead ends: 6591 [2020-10-14 03:49:46,843 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 03:49:46,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6591 states. [2020-10-14 03:49:47,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6591 to 6569. [2020-10-14 03:49:47,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6569 states. [2020-10-14 03:49:47,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6569 states to 6569 states and 7218 transitions. [2020-10-14 03:49:47,047 INFO L78 Accepts]: Start accepts. Automaton has 6569 states and 7218 transitions. Word has length 569 [2020-10-14 03:49:47,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:47,048 INFO L479 AbstractCegarLoop]: Abstraction has 6569 states and 7218 transitions. [2020-10-14 03:49:47,049 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:49:47,049 INFO L276 IsEmpty]: Start isEmpty. Operand 6569 states and 7218 transitions. [2020-10-14 03:49:47,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2020-10-14 03:49:47,083 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:47,084 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:49:47,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 03:49:47,084 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:47,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:47,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1209970642, now seen corresponding path program 1 times [2020-10-14 03:49:47,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:47,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [874722994] [2020-10-14 03:49:47,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:47,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:47,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:48,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:49,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:49,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:51,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:52,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:52,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 599 [2020-10-14 03:49:52,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:49:52,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 03:49:52,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:52,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 307 [2020-10-14 03:49:52,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:49:52,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:52,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:49:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:52,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:52,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:52,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:49:52,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:52,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:49:52,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:52,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:52,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:52,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:52,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:52,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:49:52,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:49:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:52,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:52,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:52,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:49:52,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:52,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 03:49:52,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:52,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:52,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:49:52,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:52,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:49:52,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:52,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:49:52,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:52,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:52,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:52,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 03:49:52,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:52,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-14 03:49:52,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:52,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:49:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:49:52,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-14 03:49:52,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:52,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-14 03:49:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:52,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:52,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:49:52,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:49:52,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:49:52,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-14 03:49:52,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:49:52,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:49:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:49:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:49:52,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:49:52,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:49:53,743 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 324 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2020-10-14 03:49:53,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [874722994] [2020-10-14 03:49:53,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:49:53,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:49:53,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586647411] [2020-10-14 03:49:53,745 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:49:53,745 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:49:53,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:49:53,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:49:53,746 INFO L87 Difference]: Start difference. First operand 6569 states and 7218 transitions. Second operand 8 states. [2020-10-14 03:49:58,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:49:58,673 INFO L93 Difference]: Finished difference Result 16005 states and 18124 transitions. [2020-10-14 03:49:58,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-14 03:49:58,675 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 585 [2020-10-14 03:49:58,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:49:58,710 INFO L225 Difference]: With dead ends: 16005 [2020-10-14 03:49:58,710 INFO L226 Difference]: Without dead ends: 9442 [2020-10-14 03:49:58,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2020-10-14 03:49:58,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9442 states. [2020-10-14 03:49:58,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9442 to 9296. [2020-10-14 03:49:58,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9296 states. [2020-10-14 03:49:58,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9296 states to 9296 states and 10120 transitions. [2020-10-14 03:49:58,951 INFO L78 Accepts]: Start accepts. Automaton has 9296 states and 10120 transitions. Word has length 585 [2020-10-14 03:49:58,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:49:58,953 INFO L479 AbstractCegarLoop]: Abstraction has 9296 states and 10120 transitions. [2020-10-14 03:49:58,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:49:58,953 INFO L276 IsEmpty]: Start isEmpty. Operand 9296 states and 10120 transitions. [2020-10-14 03:49:58,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 667 [2020-10-14 03:49:58,989 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:49:58,990 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:49:58,991 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 03:49:58,991 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:49:58,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:49:58,992 INFO L82 PathProgramCache]: Analyzing trace with hash -803012697, now seen corresponding path program 1 times [2020-10-14 03:49:58,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:49:58,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1949222102] [2020-10-14 03:49:58,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:49:59,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:49:59,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:49:59,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:00,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:01,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:02,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:02,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:04,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:04,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 680 [2020-10-14 03:50:04,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:50:04,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 03:50:04,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:04,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:04,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:04,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-14 03:50:04,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 279 [2020-10-14 03:50:04,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:04,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:04,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:04,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:04,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:04,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:04,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:50:04,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:04,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:04,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:04,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:04,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:04,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:04,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:04,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 03:50:04,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:04,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:50:04,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:04,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:04,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 95 [2020-10-14 03:50:04,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:04,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 03:50:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:04,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:04,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:04,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:50:04,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:04,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-14 03:50:04,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:04,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:04,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 277 [2020-10-14 03:50:04,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:04,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 384 [2020-10-14 03:50:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:04,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:04,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:04,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:50:04,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:04,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-14 03:50:04,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:04,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:04,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:04,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:50:04,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:04,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:05,038 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 131 proven. 272 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-14 03:50:05,038 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1949222102] [2020-10-14 03:50:05,038 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:05,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:05,039 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209729400] [2020-10-14 03:50:05,042 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:05,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:05,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:05,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:05,043 INFO L87 Difference]: Start difference. First operand 9296 states and 10120 transitions. Second operand 7 states. [2020-10-14 03:50:07,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:07,657 INFO L93 Difference]: Finished difference Result 19976 states and 21872 transitions. [2020-10-14 03:50:07,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:50:07,658 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 666 [2020-10-14 03:50:07,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:07,686 INFO L225 Difference]: With dead ends: 19976 [2020-10-14 03:50:07,687 INFO L226 Difference]: Without dead ends: 10686 [2020-10-14 03:50:07,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:50:07,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10686 states. [2020-10-14 03:50:07,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10686 to 10656. [2020-10-14 03:50:07,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10656 states. [2020-10-14 03:50:07,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10656 states to 10656 states and 11573 transitions. [2020-10-14 03:50:07,889 INFO L78 Accepts]: Start accepts. Automaton has 10656 states and 11573 transitions. Word has length 666 [2020-10-14 03:50:07,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:07,890 INFO L479 AbstractCegarLoop]: Abstraction has 10656 states and 11573 transitions. [2020-10-14 03:50:07,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:07,891 INFO L276 IsEmpty]: Start isEmpty. Operand 10656 states and 11573 transitions. [2020-10-14 03:50:07,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 816 [2020-10-14 03:50:07,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:07,908 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:50:07,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 03:50:07,909 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:07,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:07,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1077288914, now seen corresponding path program 1 times [2020-10-14 03:50:07,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:07,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194794172] [2020-10-14 03:50:07,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:08,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:08,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:08,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:13,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:13,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 829 [2020-10-14 03:50:13,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:50:13,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5043 [2020-10-14 03:50:13,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:13,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:13,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 03:50:13,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:50:13,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 291 [2020-10-14 03:50:13,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:13,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:13,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:13,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:13,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:13,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:13,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:13,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:50:13,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:13,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:13,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:13,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:13,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:13,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:13,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:13,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:13,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:13,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:50:13,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:13,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:50:13,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:13,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:13,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:13,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:13,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:13,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:13,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:50:13,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:13,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:13,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:13,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:50:13,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:13,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 03:50:13,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:13,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:13,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:50:13,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:13,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:50:13,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:13,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:13,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:13,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:13,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:50:13,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 03:50:13,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-14 03:50:14,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:14,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:14,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:14,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:14,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-14 03:50:14,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 36 proven. 3 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2020-10-14 03:50:14,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194794172] [2020-10-14 03:50:14,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:14,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 03:50:14,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607218050] [2020-10-14 03:50:14,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 03:50:14,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:14,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 03:50:14,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 03:50:14,375 INFO L87 Difference]: Start difference. First operand 10656 states and 11573 transitions. Second operand 5 states. [2020-10-14 03:50:16,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:16,709 INFO L93 Difference]: Finished difference Result 20977 states and 22805 transitions. [2020-10-14 03:50:16,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 03:50:16,712 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 815 [2020-10-14 03:50:16,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:16,749 INFO L225 Difference]: With dead ends: 20977 [2020-10-14 03:50:16,749 INFO L226 Difference]: Without dead ends: 10327 [2020-10-14 03:50:16,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 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 03:50:16,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10327 states. [2020-10-14 03:50:16,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10327 to 10317. [2020-10-14 03:50:16,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10317 states. [2020-10-14 03:50:16,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10317 states to 10317 states and 11006 transitions. [2020-10-14 03:50:16,942 INFO L78 Accepts]: Start accepts. Automaton has 10317 states and 11006 transitions. Word has length 815 [2020-10-14 03:50:16,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:16,943 INFO L479 AbstractCegarLoop]: Abstraction has 10317 states and 11006 transitions. [2020-10-14 03:50:16,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 03:50:16,944 INFO L276 IsEmpty]: Start isEmpty. Operand 10317 states and 11006 transitions. [2020-10-14 03:50:16,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 883 [2020-10-14 03:50:16,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:16,966 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:50:16,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 03:50:16,966 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:16,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:16,967 INFO L82 PathProgramCache]: Analyzing trace with hash -508316205, now seen corresponding path program 1 times [2020-10-14 03:50:16,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:16,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2015151032] [2020-10-14 03:50:16,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:17,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:17,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:17,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:17,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:17,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:21,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:22,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:22,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 900 [2020-10-14 03:50:22,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:50:22,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-14 03:50:22,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:22,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:22,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:22,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 330 [2020-10-14 03:50:22,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:50:22,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:22,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:22,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:22,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:22,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:22,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:22,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:22,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:50:22,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:22,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:22,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:22,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:22,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:22,334 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:22,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:50:22,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:22,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-14 03:50:22,335 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:22,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:22,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:22,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:22,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:22,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:22,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:50:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:22,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:22,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:22,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-14 03:50:22,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:22,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:50:22,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:22,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:22,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:22,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-14 03:50:22,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:22,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 03:50:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:22,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:22,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:22,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:50:22,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:22,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-14 03:50:22,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:22,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:22,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:22,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:22,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:50:22,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:22,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 588 [2020-10-14 03:50:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:22,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:22,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:22,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:50:22,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:22,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:50:22,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:22,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:22,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:22,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:50:22,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:22,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:22,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 698 [2020-10-14 03:50:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:22,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:22,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:22,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:50:22,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:22,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:50:22,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:22,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:22,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:22,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:50:22,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:22,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:23,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1255 backedges. 383 proven. 281 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2020-10-14 03:50:23,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2015151032] [2020-10-14 03:50:23,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:23,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 03:50:23,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024599136] [2020-10-14 03:50:23,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 03:50:23,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:23,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 03:50:23,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 03:50:23,543 INFO L87 Difference]: Start difference. First operand 10317 states and 11006 transitions. Second operand 8 states. [2020-10-14 03:50:27,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:27,098 INFO L93 Difference]: Finished difference Result 23686 states and 25365 transitions. [2020-10-14 03:50:27,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:50:27,100 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 882 [2020-10-14 03:50:27,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:27,134 INFO L225 Difference]: With dead ends: 23686 [2020-10-14 03:50:27,134 INFO L226 Difference]: Without dead ends: 13375 [2020-10-14 03:50:27,154 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:50:27,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13375 states. [2020-10-14 03:50:27,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13375 to 13028. [2020-10-14 03:50:27,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13028 states. [2020-10-14 03:50:27,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13028 states to 13028 states and 13858 transitions. [2020-10-14 03:50:27,369 INFO L78 Accepts]: Start accepts. Automaton has 13028 states and 13858 transitions. Word has length 882 [2020-10-14 03:50:27,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:27,371 INFO L479 AbstractCegarLoop]: Abstraction has 13028 states and 13858 transitions. [2020-10-14 03:50:27,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 03:50:27,371 INFO L276 IsEmpty]: Start isEmpty. Operand 13028 states and 13858 transitions. [2020-10-14 03:50:27,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 884 [2020-10-14 03:50:27,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:27,395 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:50:27,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 03:50:27,395 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:27,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:27,396 INFO L82 PathProgramCache]: Analyzing trace with hash -1220337354, now seen corresponding path program 1 times [2020-10-14 03:50:27,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:27,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [723606384] [2020-10-14 03:50:27,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:27,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:27,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:28,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:28,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:28,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:31,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:32,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:32,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 901 [2020-10-14 03:50:32,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:50:32,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5080 [2020-10-14 03:50:32,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:32,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 331 [2020-10-14 03:50:32,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:50:32,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:32,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:32,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:32,760 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:32,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:32,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:32,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 03:50:32,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:32,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:32,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:32,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:32,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:32,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:32,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:32,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:32,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:50:32,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:32,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 03:50:32,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:32,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:32,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:32,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:32,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:33,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:50:33,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:33,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:33,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:33,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-14 03:50:33,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:33,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 03:50:33,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:33,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:33,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:33,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-14 03:50:33,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:33,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2020-10-14 03:50:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:33,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:33,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:33,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:50:33,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:33,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 449 [2020-10-14 03:50:33,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:33,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:33,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:33,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:33,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:50:33,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:50:33,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2020-10-14 03:50:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:33,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:34,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:34,001 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:50:34,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:34,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:50:34,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:34,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:34,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:34,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:50:34,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:34,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:34,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 699 [2020-10-14 03:50:34,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:34,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:34,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:34,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:50:34,086 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:34,086 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:50:34,086 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:34,086 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:50:34,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:34,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:34,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1259 backedges. 384 proven. 281 refuted. 0 times theorem prover too weak. 594 trivial. 0 not checked. [2020-10-14 03:50:34,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [723606384] [2020-10-14 03:50:34,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:34,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:34,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130337789] [2020-10-14 03:50:34,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:34,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:34,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:34,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:34,826 INFO L87 Difference]: Start difference. First operand 13028 states and 13858 transitions. Second operand 7 states. [2020-10-14 03:50:38,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:38,071 INFO L93 Difference]: Finished difference Result 27255 states and 29593 transitions. [2020-10-14 03:50:38,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:50:38,072 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 883 [2020-10-14 03:50:38,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:38,109 INFO L225 Difference]: With dead ends: 27255 [2020-10-14 03:50:38,109 INFO L226 Difference]: Without dead ends: 14233 [2020-10-14 03:50:38,127 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-14 03:50:38,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14233 states. [2020-10-14 03:50:38,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14233 to 14049. [2020-10-14 03:50:38,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14049 states. [2020-10-14 03:50:38,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14049 states to 14049 states and 14906 transitions. [2020-10-14 03:50:38,368 INFO L78 Accepts]: Start accepts. Automaton has 14049 states and 14906 transitions. Word has length 883 [2020-10-14 03:50:38,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:38,369 INFO L479 AbstractCegarLoop]: Abstraction has 14049 states and 14906 transitions. [2020-10-14 03:50:38,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:38,369 INFO L276 IsEmpty]: Start isEmpty. Operand 14049 states and 14906 transitions. [2020-10-14 03:50:38,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 909 [2020-10-14 03:50:38,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:38,396 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 03:50:38,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 03:50:38,397 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:38,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:38,397 INFO L82 PathProgramCache]: Analyzing trace with hash -708066049, now seen corresponding path program 1 times [2020-10-14 03:50:38,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:38,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989923509] [2020-10-14 03:50:38,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:38,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:38,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:38,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:39,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:39,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:40,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:43,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:43,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 926 [2020-10-14 03:50:43,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 03:50:43,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 03:50:43,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:43,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:43,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:43,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 356 [2020-10-14 03:50:43,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:50:43,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:43,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:43,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:43,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:43,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:43,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:43,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:43,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:50:43,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:43,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:43,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:43,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:43,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:43,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:43,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:43,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:43,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:43,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:50:43,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:43,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-14 03:50:43,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:43,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:43,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:43,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:50:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:43,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:43,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:43,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-14 03:50:43,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:43,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-14 03:50:43,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:43,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:43,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-14 03:50:43,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:43,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 03:50:43,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:43,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:44,097 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:44,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:50:44,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:44,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-10-14 03:50:44,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:44,098 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:44,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:44,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:44,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:50:44,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:44,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 614 [2020-10-14 03:50:44,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:44,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:44,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:44,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:50:44,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:44,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 03:50:44,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:44,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:50:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:44,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:44,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 724 [2020-10-14 03:50:44,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:44,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:44,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:44,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:50:44,575 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:44,575 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:50:44,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:44,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:50:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:45,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1359 backedges. 409 proven. 281 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2020-10-14 03:50:45,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989923509] [2020-10-14 03:50:45,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:45,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:45,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687044883] [2020-10-14 03:50:45,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:45,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:45,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:45,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:45,325 INFO L87 Difference]: Start difference. First operand 14049 states and 14906 transitions. Second operand 7 states. [2020-10-14 03:50:49,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:49,101 INFO L93 Difference]: Finished difference Result 29466 states and 31435 transitions. [2020-10-14 03:50:49,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:50:49,102 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 908 [2020-10-14 03:50:49,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:49,134 INFO L225 Difference]: With dead ends: 29466 [2020-10-14 03:50:49,134 INFO L226 Difference]: Without dead ends: 15423 [2020-10-14 03:50:49,147 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 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 03:50:49,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15423 states. [2020-10-14 03:50:49,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15423 to 14063. [2020-10-14 03:50:49,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14063 states. [2020-10-14 03:50:49,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14063 states to 14063 states and 14899 transitions. [2020-10-14 03:50:49,385 INFO L78 Accepts]: Start accepts. Automaton has 14063 states and 14899 transitions. Word has length 908 [2020-10-14 03:50:49,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:49,386 INFO L479 AbstractCegarLoop]: Abstraction has 14063 states and 14899 transitions. [2020-10-14 03:50:49,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:49,386 INFO L276 IsEmpty]: Start isEmpty. Operand 14063 states and 14899 transitions. [2020-10-14 03:50:49,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 967 [2020-10-14 03:50:49,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:49,416 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:49,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 03:50:49,418 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:49,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:49,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1389294525, now seen corresponding path program 1 times [2020-10-14 03:50:49,419 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:49,419 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [221003991] [2020-10-14 03:50:49,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:49,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:49,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:49,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:49,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:53,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:54,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:54,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 984 [2020-10-14 03:50:54,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:50:54,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5051 [2020-10-14 03:50:54,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:54,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 414 [2020-10-14 03:50:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 265 [2020-10-14 03:50:54,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:54,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:50:54,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:54,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:54,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:54,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:50:54,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:54,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:50:54,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:54,690 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:54,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:54,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:54,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:54,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:54,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:50:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:54,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:54,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:54,761 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:50:54,761 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:54,761 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:50:54,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:54,762 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:54,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:54,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:54,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:50:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:54,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:54,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:54,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:50:54,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:54,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 03:50:54,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:54,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:54,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:50:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:50:54,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 158 [2020-10-14 03:50:54,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:54,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-14 03:50:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:54,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:55,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:55,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-14 03:50:55,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:55,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-14 03:50:55,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:55,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:55,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:50:55,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:50:55,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 263 [2020-10-14 03:50:55,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:55,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 672 [2020-10-14 03:50:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:55,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:55,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:55,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:50:55,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:55,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:50:55,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:55,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:55,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:55,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-14 03:50:55,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:55,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:55,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 782 [2020-10-14 03:50:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:55,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:50:55,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:50:55,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:50:55,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:50:55,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:50:55,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:50:55,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:50:55,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:50:55,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:50:55,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:50:55,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:50:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1568 backedges. 467 proven. 281 refuted. 0 times theorem prover too weak. 820 trivial. 0 not checked. [2020-10-14 03:50:55,930 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [221003991] [2020-10-14 03:50:55,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:50:55,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:50:55,931 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880990752] [2020-10-14 03:50:55,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:50:55,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:50:55,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:50:55,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:50:55,933 INFO L87 Difference]: Start difference. First operand 14063 states and 14899 transitions. Second operand 7 states. [2020-10-14 03:50:59,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:50:59,348 INFO L93 Difference]: Finished difference Result 29146 states and 31056 transitions. [2020-10-14 03:50:59,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:50:59,349 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 966 [2020-10-14 03:50:59,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:50:59,383 INFO L225 Difference]: With dead ends: 29146 [2020-10-14 03:50:59,384 INFO L226 Difference]: Without dead ends: 15089 [2020-10-14 03:50:59,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:50:59,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15089 states. [2020-10-14 03:50:59,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15089 to 14732. [2020-10-14 03:50:59,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14732 states. [2020-10-14 03:50:59,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14732 states to 14732 states and 15527 transitions. [2020-10-14 03:50:59,638 INFO L78 Accepts]: Start accepts. Automaton has 14732 states and 15527 transitions. Word has length 966 [2020-10-14 03:50:59,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:50:59,639 INFO L479 AbstractCegarLoop]: Abstraction has 14732 states and 15527 transitions. [2020-10-14 03:50:59,639 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:50:59,639 INFO L276 IsEmpty]: Start isEmpty. Operand 14732 states and 15527 transitions. [2020-10-14 03:50:59,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1099 [2020-10-14 03:50:59,672 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:50:59,673 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:50:59,673 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 03:50:59,673 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:50:59,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:50:59,675 INFO L82 PathProgramCache]: Analyzing trace with hash 867146759, now seen corresponding path program 1 times [2020-10-14 03:50:59,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:50:59,676 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254366230] [2020-10-14 03:50:59,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:50:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:50:59,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:00,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:00,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:04,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:04,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1118 [2020-10-14 03:51:04,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:51:04,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5094 [2020-10-14 03:51:04,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:04,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:04,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:04,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:51:04,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-14 03:51:04,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:05,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:05,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:05,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:05,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:05,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:05,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 03:51:05,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:05,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:05,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:05,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:05,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:05,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:05,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:51:05,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:05,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 03:51:05,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:05,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:05,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:05,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:05,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:05,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:51:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:05,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:05,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:51:05,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:05,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:51:05,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:05,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:05,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:05,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:05,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:51:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:05,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:05,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:51:05,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:05,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 03:51:05,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:05,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:05,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:05,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:05,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:51:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:05,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:05,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:51:05,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:05,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:51:05,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:05,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:05,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:05,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:05,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:05,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:05,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:51:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:05,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:05,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:05,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:05,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-14 03:51:05,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:05,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:05,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:05,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:05,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:51:05,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:05,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:51:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:05,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:05,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:05,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:51:05,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:05,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-14 03:51:05,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:05,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:05,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:05,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:05,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-14 03:51:05,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:06,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2065 backedges. 783 proven. 2 refuted. 0 times theorem prover too weak. 1280 trivial. 0 not checked. [2020-10-14 03:51:06,897 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254366230] [2020-10-14 03:51:06,897 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:06,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:06,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10108707] [2020-10-14 03:51:06,898 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:06,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:06,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:06,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:06,899 INFO L87 Difference]: Start difference. First operand 14732 states and 15527 transitions. Second operand 7 states. [2020-10-14 03:51:10,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:10,112 INFO L93 Difference]: Finished difference Result 30167 states and 31829 transitions. [2020-10-14 03:51:10,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:51:10,113 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1098 [2020-10-14 03:51:10,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:10,146 INFO L225 Difference]: With dead ends: 30167 [2020-10-14 03:51:10,146 INFO L226 Difference]: Without dead ends: 14067 [2020-10-14 03:51:10,167 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:51:10,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14067 states. [2020-10-14 03:51:10,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14067 to 13355. [2020-10-14 03:51:10,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13355 states. [2020-10-14 03:51:10,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13355 states to 13355 states and 13867 transitions. [2020-10-14 03:51:10,372 INFO L78 Accepts]: Start accepts. Automaton has 13355 states and 13867 transitions. Word has length 1098 [2020-10-14 03:51:10,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:10,374 INFO L479 AbstractCegarLoop]: Abstraction has 13355 states and 13867 transitions. [2020-10-14 03:51:10,374 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:10,374 INFO L276 IsEmpty]: Start isEmpty. Operand 13355 states and 13867 transitions. [2020-10-14 03:51:10,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1479 [2020-10-14 03:51:10,414 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:10,415 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2020-10-14 03:51:10,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 03:51:10,416 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:10,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:10,416 INFO L82 PathProgramCache]: Analyzing trace with hash -305951209, now seen corresponding path program 1 times [2020-10-14 03:51:10,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:10,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147201459] [2020-10-14 03:51:10,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:10,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:10,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:10,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:11,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:11,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:15,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1500 [2020-10-14 03:51:15,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:51:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5020 [2020-10-14 03:51:15,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:15,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 537 [2020-10-14 03:51:15,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:51:15,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:15,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:15,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:15,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:15,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:15,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:51:15,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:15,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:15,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:15,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:15,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:15,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:15,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:15,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:51:15,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:15,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 03:51:15,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:15,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:15,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:15,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:15,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:15,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:51:15,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:15,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:15,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:15,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:51:15,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:15,952 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-10-14 03:51:15,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:15,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:15,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:15,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:15,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 271 [2020-10-14 03:51:15,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:16,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:51:16,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:16,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:16,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:16,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:51:16,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:16,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 220 [2020-10-14 03:51:16,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:16,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:16,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:16,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:16,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:51:16,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:16,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 806 [2020-10-14 03:51:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:16,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:16,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:16,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:51:16,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:16,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:51:16,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:16,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:51:16,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:16,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:16,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2020-10-14 03:51:16,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:16,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:16,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:16,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:51:16,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:16,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-14 03:51:16,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:16,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:51:16,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:16,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:16,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1131 [2020-10-14 03:51:16,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:16,866 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:16,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:16,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 03:51:16,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:16,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:51:16,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:16,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:16,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:16,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 03:51:16,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:16,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:16,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1296 [2020-10-14 03:51:16,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:16,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:16,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:16,991 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:51:16,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:16,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 03:51:16,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:16,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:16,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:16,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:51:16,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:16,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:18,868 INFO L134 CoverageAnalysis]: Checked inductivity of 3541 backedges. 623 proven. 653 refuted. 0 times theorem prover too weak. 2265 trivial. 0 not checked. [2020-10-14 03:51:18,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147201459] [2020-10-14 03:51:18,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:18,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:18,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840696421] [2020-10-14 03:51:18,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:18,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:18,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:18,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:18,871 INFO L87 Difference]: Start difference. First operand 13355 states and 13867 transitions. Second operand 7 states. [2020-10-14 03:51:21,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:21,898 INFO L93 Difference]: Finished difference Result 26728 states and 27762 transitions. [2020-10-14 03:51:21,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:51:21,899 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1478 [2020-10-14 03:51:21,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:21,927 INFO L225 Difference]: With dead ends: 26728 [2020-10-14 03:51:21,927 INFO L226 Difference]: Without dead ends: 13379 [2020-10-14 03:51:21,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:51:21,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13379 states. [2020-10-14 03:51:22,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13379 to 13355. [2020-10-14 03:51:22,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13355 states. [2020-10-14 03:51:22,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13355 states to 13355 states and 13859 transitions. [2020-10-14 03:51:22,149 INFO L78 Accepts]: Start accepts. Automaton has 13355 states and 13859 transitions. Word has length 1478 [2020-10-14 03:51:22,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:22,150 INFO L479 AbstractCegarLoop]: Abstraction has 13355 states and 13859 transitions. [2020-10-14 03:51:22,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:22,150 INFO L276 IsEmpty]: Start isEmpty. Operand 13355 states and 13859 transitions. [2020-10-14 03:51:22,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1564 [2020-10-14 03:51:22,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:22,195 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:22,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 03:51:22,196 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:22,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:22,197 INFO L82 PathProgramCache]: Analyzing trace with hash -1428743794, now seen corresponding path program 1 times [2020-10-14 03:51:22,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:22,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1099480507] [2020-10-14 03:51:22,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:22,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:22,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:22,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:27,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:27,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1587 [2020-10-14 03:51:27,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:51:27,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-14 03:51:27,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:27,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:51:27,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-14 03:51:27,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:27,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:27,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:27,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:27,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:27,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:27,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:27,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:51:27,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:27,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:27,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:27,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:27,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:27,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:27,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:27,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:51:27,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:27,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 03:51:27,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:27,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:27,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:27,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:27,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:27,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:27,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:51:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:27,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:27,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:27,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:51:27,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:27,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 03:51:27,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:27,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:27,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:27,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:27,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:51:27,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:27,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:27,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:27,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:51:27,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:27,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:51:27,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:27,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:27,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:27,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:27,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:27,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:27,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:51:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:27,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:27,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:27,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:51:27,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:27,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 03:51:27,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:27,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:27,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:27,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:27,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:27,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:51:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:27,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:27,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:27,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:51:27,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:27,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:51:27,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:27,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:51:27,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:27,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:51:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:28,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:28,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:28,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-14 03:51:28,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:28,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-14 03:51:28,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:28,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:28,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:28,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:28,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-14 03:51:28,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:28,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1129 [2020-10-14 03:51:28,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:28,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:28,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:28,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 253 [2020-10-14 03:51:28,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:28,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-14 03:51:28,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:28,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:28,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:28,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 250 [2020-10-14 03:51:28,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:28,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:28,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1381 [2020-10-14 03:51:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:28,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:28,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:28,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:51:28,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:28,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:51:28,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:28,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:28,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:28,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:51:28,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:28,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:30,450 INFO L134 CoverageAnalysis]: Checked inductivity of 4333 backedges. 936 proven. 384 refuted. 0 times theorem prover too weak. 3013 trivial. 0 not checked. [2020-10-14 03:51:30,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1099480507] [2020-10-14 03:51:30,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:30,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:30,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165910807] [2020-10-14 03:51:30,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:30,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:30,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:30,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:30,453 INFO L87 Difference]: Start difference. First operand 13355 states and 13859 transitions. Second operand 7 states. [2020-10-14 03:51:33,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:33,651 INFO L93 Difference]: Finished difference Result 26386 states and 27381 transitions. [2020-10-14 03:51:33,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-14 03:51:33,652 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1563 [2020-10-14 03:51:33,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:33,678 INFO L225 Difference]: With dead ends: 26386 [2020-10-14 03:51:33,678 INFO L226 Difference]: Without dead ends: 13037 [2020-10-14 03:51:33,694 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 03:51:33,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13037 states. [2020-10-14 03:51:33,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13037 to 13011. [2020-10-14 03:51:33,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13011 states. [2020-10-14 03:51:33,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13011 states to 13011 states and 13474 transitions. [2020-10-14 03:51:33,867 INFO L78 Accepts]: Start accepts. Automaton has 13011 states and 13474 transitions. Word has length 1563 [2020-10-14 03:51:33,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:33,868 INFO L479 AbstractCegarLoop]: Abstraction has 13011 states and 13474 transitions. [2020-10-14 03:51:33,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:33,868 INFO L276 IsEmpty]: Start isEmpty. Operand 13011 states and 13474 transitions. [2020-10-14 03:51:33,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1750 [2020-10-14 03:51:33,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:33,915 INFO L422 BasicCegarLoop]: trace histogram [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, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 03:51:33,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 03:51:33,916 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:33,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:33,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1031451094, now seen corresponding path program 1 times [2020-10-14 03:51:33,917 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:33,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1244008929] [2020-10-14 03:51:33,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:34,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:34,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:34,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:39,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:39,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1775 [2020-10-14 03:51:39,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 03:51:39,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 03:51:39,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:39,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 812 [2020-10-14 03:51:39,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:51:39,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:39,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:39,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:39,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:39,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:39,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:39,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:51:39,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:39,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:39,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:39,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:39,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:39,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:39,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:39,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:39,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:39,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:39,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:51:39,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:39,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:51:39,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:39,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:39,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:39,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:39,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:51:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:39,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:39,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:39,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:51:39,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:39,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:51:39,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:39,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:39,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:39,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:39,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:51:39,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:39,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:39,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:39,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:51:39,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:39,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-14 03:51:39,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:39,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:39,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:39,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:39,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:39,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:51:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:39,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:39,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:39,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:51:39,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:39,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-14 03:51:39,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:39,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:39,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:39,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:39,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-14 03:51:39,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:39,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:51:39,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:39,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:40,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:40,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:51:40,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:40,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-14 03:51:40,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:40,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:40,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:40,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:40,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:51:40,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:40,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1077 [2020-10-14 03:51:40,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:40,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:40,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:40,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:51:40,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:40,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:51:40,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:40,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:40,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:40,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:51:40,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:40,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:40,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1148 [2020-10-14 03:51:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:40,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:40,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:40,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:51:40,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:40,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:51:40,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:40,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:40,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:40,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:51:40,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:40,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:40,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1402 [2020-10-14 03:51:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:40,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:40,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:40,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 03:51:40,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:40,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-14 03:51:40,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:40,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:40,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:40,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 03:51:40,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:40,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:40,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1567 [2020-10-14 03:51:40,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:40,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:40,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:40,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:51:40,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:40,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:51:40,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:40,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:40,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:40,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:51:40,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:40,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:42,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5374 backedges. 950 proven. 653 refuted. 0 times theorem prover too weak. 3771 trivial. 0 not checked. [2020-10-14 03:51:42,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1244008929] [2020-10-14 03:51:42,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:42,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:42,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712208810] [2020-10-14 03:51:42,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:42,469 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:42,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:42,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:42,470 INFO L87 Difference]: Start difference. First operand 13011 states and 13474 transitions. Second operand 7 states. [2020-10-14 03:51:45,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:45,759 INFO L93 Difference]: Finished difference Result 26375 states and 27345 transitions. [2020-10-14 03:51:45,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:51:45,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1749 [2020-10-14 03:51:45,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:45,780 INFO L225 Difference]: With dead ends: 26375 [2020-10-14 03:51:45,780 INFO L226 Difference]: Without dead ends: 13370 [2020-10-14 03:51:45,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 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 03:51:45,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13370 states. [2020-10-14 03:51:45,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13370 to 13348. [2020-10-14 03:51:45,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13348 states. [2020-10-14 03:51:45,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13348 states to 13348 states and 13841 transitions. [2020-10-14 03:51:45,957 INFO L78 Accepts]: Start accepts. Automaton has 13348 states and 13841 transitions. Word has length 1749 [2020-10-14 03:51:45,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:45,959 INFO L479 AbstractCegarLoop]: Abstraction has 13348 states and 13841 transitions. [2020-10-14 03:51:45,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:45,959 INFO L276 IsEmpty]: Start isEmpty. Operand 13348 states and 13841 transitions. [2020-10-14 03:51:45,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1769 [2020-10-14 03:51:45,998 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:45,999 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:51:45,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 03:51:46,000 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:46,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:46,000 INFO L82 PathProgramCache]: Analyzing trace with hash -399663337, now seen corresponding path program 1 times [2020-10-14 03:51:46,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:46,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2074143739] [2020-10-14 03:51:46,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:46,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:46,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:46,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:46,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:47,017 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:47,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:51,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:51,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1794 [2020-10-14 03:51:51,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 03:51:51,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5071 [2020-10-14 03:51:51,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:51,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:51,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:51,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 831 [2020-10-14 03:51:51,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-14 03:51:51,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:51,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:51:51,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:51,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:51,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:51,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:51:51,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:51,339 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:51:51,339 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:51,339 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:51,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:51,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:51,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:51,340 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:51,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:51:51,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:51,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:51,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:51,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:51:51,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:51,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:51:51,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:51,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:51,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:51,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:51,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:51,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:51,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:51:51,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:51,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:51,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:51,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:51:51,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:51,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 03:51:51,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:51,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:51,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:51,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:51,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:51,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:51,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2020-10-14 03:51:51,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:51,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:51,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:51,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:51:51,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:51,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 03:51:51,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:51,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:51,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:51,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:51,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 573 [2020-10-14 03:51:51,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:51,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:51,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:51,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:51:51,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:51,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-14 03:51:51,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:51,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:51:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:51:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 245 [2020-10-14 03:51:51,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:51,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 823 [2020-10-14 03:51:51,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:51,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:52,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:52,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:51:52,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:52,027 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-14 03:51:52,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:52,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:51:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:51:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-14 03:51:52,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:52,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1096 [2020-10-14 03:51:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:52,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:52,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:52,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:51:52,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:52,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:51:52,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:52,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:51:52,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:52,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:52,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1167 [2020-10-14 03:51:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:52,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:52,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:52,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:51:52,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:52,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 03:51:52,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:52,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:52,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:51:52,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:52,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:51:52,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1421 [2020-10-14 03:51:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:52,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:52,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:52,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 03:51:52,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:52,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:51:52,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:52,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:52,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:52,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 03:51:52,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:52,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:52,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1586 [2020-10-14 03:51:52,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:52,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:52,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:51:52,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-14 03:51:52,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:51:52,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:51:52,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:51:52,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:51:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:51:52,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 171 [2020-10-14 03:51:52,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:51:52,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:51:54,255 INFO L134 CoverageAnalysis]: Checked inductivity of 5623 backedges. 972 proven. 653 refuted. 0 times theorem prover too weak. 3998 trivial. 0 not checked. [2020-10-14 03:51:54,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2074143739] [2020-10-14 03:51:54,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:51:54,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:51:54,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7604160] [2020-10-14 03:51:54,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:51:54,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:51:54,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:51:54,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:51:54,257 INFO L87 Difference]: Start difference. First operand 13348 states and 13841 transitions. Second operand 7 states. [2020-10-14 03:51:57,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:51:57,864 INFO L93 Difference]: Finished difference Result 30092 states and 31313 transitions. [2020-10-14 03:51:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 03:51:57,865 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1768 [2020-10-14 03:51:57,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:51:57,891 INFO L225 Difference]: With dead ends: 30092 [2020-10-14 03:51:57,892 INFO L226 Difference]: Without dead ends: 16409 [2020-10-14 03:51:57,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 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 03:51:57,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16409 states. [2020-10-14 03:51:58,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16409 to 16389. [2020-10-14 03:51:58,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16389 states. [2020-10-14 03:51:58,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16389 states to 16389 states and 16962 transitions. [2020-10-14 03:51:58,076 INFO L78 Accepts]: Start accepts. Automaton has 16389 states and 16962 transitions. Word has length 1768 [2020-10-14 03:51:58,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:51:58,078 INFO L479 AbstractCegarLoop]: Abstraction has 16389 states and 16962 transitions. [2020-10-14 03:51:58,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:51:58,078 INFO L276 IsEmpty]: Start isEmpty. Operand 16389 states and 16962 transitions. [2020-10-14 03:51:58,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2007 [2020-10-14 03:51:58,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:51:58,125 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-10-14 03:51:58,125 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 03:51:58,125 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:51:58,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:51:58,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1915240037, now seen corresponding path program 1 times [2020-10-14 03:51:58,126 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:51:58,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1365591935] [2020-10-14 03:51:58,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:51:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:51:58,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:58,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:51:59,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:00,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2034 [2020-10-14 03:52:03,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:03,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5423 [2020-10-14 03:52:03,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,684 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 924 [2020-10-14 03:52:03,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 287 [2020-10-14 03:52:03,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:03,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:03,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:03,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:03,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:52:03,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,887 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:03,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:03,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:03,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:03,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:03,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:03,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:03,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-14 03:52:03,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:03,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 03:52:03,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:03,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:03,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:03,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:03,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-14 03:52:04,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 277 [2020-10-14 03:52:04,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 03:52:04,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:04,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:04,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:04,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 533 [2020-10-14 03:52:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-14 03:52:04,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 03:52:04,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:04,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:04,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:04,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:04,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-10-14 03:52:04,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-14 03:52:04,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 03:52:04,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:04,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:04,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:04,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:04,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 804 [2020-10-14 03:52:04,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-14 03:52:04,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:52:04,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:04,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-14 03:52:04,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:04,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 914 [2020-10-14 03:52:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 285 [2020-10-14 03:52:04,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 207 [2020-10-14 03:52:04,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:04,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:04,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 285 [2020-10-14 03:52:04,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:04,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1198 [2020-10-14 03:52:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:52:04,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 03:52:04,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:52:04,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:04,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:04,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1452 [2020-10-14 03:52:04,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 03:52:04,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 03:52:04,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 03:52:04,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:04,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:04,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1617 [2020-10-14 03:52:04,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:04,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:04,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:04,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-10-14 03:52:04,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:04,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-14 03:52:04,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:04,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:04,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:04,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 203 [2020-10-14 03:52:04,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:04,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:04,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1822 [2020-10-14 03:52:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:05,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:05,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:05,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:52:05,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:05,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-14 03:52:05,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:05,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:05,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:05,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:52:05,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:05,063 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:06,732 INFO L134 CoverageAnalysis]: Checked inductivity of 7223 backedges. 1091 proven. 789 refuted. 0 times theorem prover too weak. 5343 trivial. 0 not checked. [2020-10-14 03:52:06,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1365591935] [2020-10-14 03:52:06,733 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 03:52:06,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 03:52:06,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332266350] [2020-10-14 03:52:06,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 03:52:06,735 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 03:52:06,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 03:52:06,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 03:52:06,735 INFO L87 Difference]: Start difference. First operand 16389 states and 16962 transitions. Second operand 7 states. [2020-10-14 03:52:10,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 03:52:10,162 INFO L93 Difference]: Finished difference Result 34483 states and 35788 transitions. [2020-10-14 03:52:10,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 03:52:10,163 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 2006 [2020-10-14 03:52:10,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 03:52:10,190 INFO L225 Difference]: With dead ends: 34483 [2020-10-14 03:52:10,190 INFO L226 Difference]: Without dead ends: 18437 [2020-10-14 03:52:10,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 03:52:10,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18437 states. [2020-10-14 03:52:10,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18437 to 18086. [2020-10-14 03:52:10,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18086 states. [2020-10-14 03:52:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18086 states to 18086 states and 18705 transitions. [2020-10-14 03:52:10,385 INFO L78 Accepts]: Start accepts. Automaton has 18086 states and 18705 transitions. Word has length 2006 [2020-10-14 03:52:10,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 03:52:10,386 INFO L479 AbstractCegarLoop]: Abstraction has 18086 states and 18705 transitions. [2020-10-14 03:52:10,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 03:52:10,386 INFO L276 IsEmpty]: Start isEmpty. Operand 18086 states and 18705 transitions. [2020-10-14 03:52:10,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2482 [2020-10-14 03:52:10,447 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 03:52:10,448 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:52:10,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 03:52:10,449 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 03:52:10,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 03:52:10,449 INFO L82 PathProgramCache]: Analyzing trace with hash 1119412403, now seen corresponding path program 1 times [2020-10-14 03:52:10,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 03:52:10,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [436757266] [2020-10-14 03:52:10,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 03:52:10,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:10,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:11,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:11,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:11,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:15,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:15,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 2517 [2020-10-14 03:52:15,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 03:52:15,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5120 [2020-10-14 03:52:15,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:15,901 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 898 [2020-10-14 03:52:15,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-14 03:52:15,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 03:52:16,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 03:52:16,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 03:52:16,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 03:52:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 03:52:16,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-14 03:52:16,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:16,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:16,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:16,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-14 03:52:16,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-14 03:52:16,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 03:52:16,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:16,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:16,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:16,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-14 03:52:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,238 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-14 03:52:16,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 03:52:16,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:16,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:16,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:16,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 572 [2020-10-14 03:52:16,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 202 [2020-10-14 03:52:16,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 03:52:16,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:16,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:16,338 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 773 [2020-10-14 03:52:16,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-14 03:52:16,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-14 03:52:16,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 03:52:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:16,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-14 03:52:16,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 888 [2020-10-14 03:52:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 03:52:16,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-14 03:52:16,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 03:52:16,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 03:52:16,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-14 03:52:16,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1138 [2020-10-14 03:52:16,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:16,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:16,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:16,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-14 03:52:16,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:16,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 03:52:16,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:16,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:16,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:16,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-14 03:52:16,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:16,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:16,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1212 [2020-10-14 03:52:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:17,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:17,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:17,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-14 03:52:17,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:17,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 03:52:17,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:17,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 271 [2020-10-14 03:52:17,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:17,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:17,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1485 [2020-10-14 03:52:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:17,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:17,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:17,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-14 03:52:17,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:17,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:52:17,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:17,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:17,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:17,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-14 03:52:17,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:17,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:17,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1556 [2020-10-14 03:52:17,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:17,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:17,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:17,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 255 [2020-10-14 03:52:17,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:17,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-14 03:52:17,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:17,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:17,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:17,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 252 [2020-10-14 03:52:17,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:17,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:17,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1810 [2020-10-14 03:52:17,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:17,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:17,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:17,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 03:52:17,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:17,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-14 03:52:17,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:17,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-14 03:52:17,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:17,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:17,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1975 [2020-10-14 03:52:17,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:17,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:17,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:17,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 325 [2020-10-14 03:52:17,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:17,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-14 03:52:17,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:17,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:17,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:17,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 322 [2020-10-14 03:52:17,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:17,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 03:52:17,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-10-14 03:52:17,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:17,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:17,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:17,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 03:52:17,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:17,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 03:52:17,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:17,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:17,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:17,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 03:52:17,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:17,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 03:52:17,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2297 [2020-10-14 03:52:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 03:52:17,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 03:52:18,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 03:52:18,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 03:52:18,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 03:52:18,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 03:52:18,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 03:52:18,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 03:52:18,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 03:52:18,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 173 [2020-10-14 03:52:18,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 03:52:18,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0