/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 SingleStatement --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=0.2 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o1000.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 04:20:19,143 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 04:20:19,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 04:20:19,196 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 04:20:19,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 04:20:19,207 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 04:20:19,209 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 04:20:19,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 04:20:19,215 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 04:20:19,219 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 04:20:19,220 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 04:20:19,221 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 04:20:19,222 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 04:20:19,225 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 04:20:19,228 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 04:20:19,229 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 04:20:19,230 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 04:20:19,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 04:20:19,234 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 04:20:19,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 04:20:19,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 04:20:19,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 04:20:19,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 04:20:19,247 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 04:20:19,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 04:20:19,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 04:20:19,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 04:20:19,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 04:20:19,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 04:20:19,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 04:20:19,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 04:20:19,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 04:20:19,260 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 04:20:19,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 04:20:19,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 04:20:19,262 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 04:20:19,263 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 04:20:19,263 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 04:20:19,263 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 04:20:19,265 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 04:20:19,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 04:20:19,267 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 [2020-09-25 04:20:19,317 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 04:20:19,317 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 04:20:19,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 04:20:19,320 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 04:20:19,320 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 04:20:19,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 04:20:19,321 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 04:20:19,321 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 04:20:19,321 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 04:20:19,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 04:20:19,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 04:20:19,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 04:20:19,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 04:20:19,323 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 04:20:19,323 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 04:20:19,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 04:20:19,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 04:20:19,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 04:20:19,324 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 04:20:19,325 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 04:20:19,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 04:20:19,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 04:20:19,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 04:20:19,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 04:20:19,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 04:20:19,326 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 04:20:19,326 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 04:20:19,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 04:20:19,327 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 04:20:19,327 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 -> SingleStatement 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=0.2;log-additional-information=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=0.2;log-additional-information=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=0.2;log-additional-information=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=0.2;log-additional-information=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=0.2;log-additional-information=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=0.2;log-additional-information=true; [2020-09-25 04:20:19,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 04:20:19,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 04:20:19,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 04:20:19,790 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 04:20:19,791 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 04:20:19,792 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o1000.c [2020-09-25 04:20:19,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ecb69e43/3dd41aeb98fc4daf932756563f3fa10a/FLAGe2e34c029 [2020-09-25 04:20:20,328 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 04:20:20,329 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o1000.c [2020-09-25 04:20:20,336 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ecb69e43/3dd41aeb98fc4daf932756563f3fa10a/FLAGe2e34c029 [2020-09-25 04:20:20,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/1ecb69e43/3dd41aeb98fc4daf932756563f3fa10a [2020-09-25 04:20:20,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 04:20:20,695 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 04:20:20,696 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 04:20:20,697 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 04:20:20,701 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 04:20:20,702 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:20:20" (1/1) ... [2020-09-25 04:20:20,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f8a488b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:20, skipping insertion in model container [2020-09-25 04:20:20,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 04:20:20" (1/1) ... [2020-09-25 04:20:20,715 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 04:20:20,743 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 04:20:20,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:20:20,994 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 04:20:21,012 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 04:20:21,027 INFO L208 MainTranslator]: Completed translation [2020-09-25 04:20:21,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:21 WrapperNode [2020-09-25 04:20:21,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 04:20:21,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 04:20:21,029 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 04:20:21,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 04:20:21,044 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:21" (1/1) ... [2020-09-25 04:20:21,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:21" (1/1) ... [2020-09-25 04:20:21,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:21" (1/1) ... [2020-09-25 04:20:21,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:21" (1/1) ... [2020-09-25 04:20:21,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:21" (1/1) ... [2020-09-25 04:20:21,056 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:21" (1/1) ... [2020-09-25 04:20:21,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:21" (1/1) ... [2020-09-25 04:20:21,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 04:20:21,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 04:20:21,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 04:20:21,059 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 04:20:21,060 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:21" (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 [2020-09-25 04:20:21,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 04:20:21,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 04:20:21,212 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 04:20:21,212 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 04:20:21,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-09-25 04:20:21,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 04:20:21,213 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 04:20:21,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 04:20:21,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 04:20:21,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 04:20:21,386 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 04:20:21,386 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 04:20:21,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:20:21 BoogieIcfgContainer [2020-09-25 04:20:21,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 04:20:21,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 04:20:21,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 04:20:21,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 04:20:21,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 04:20:20" (1/3) ... [2020-09-25 04:20:21,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8e2eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:20:21, skipping insertion in model container [2020-09-25 04:20:21,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 04:20:21" (2/3) ... [2020-09-25 04:20:21,398 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c8e2eb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 04:20:21, skipping insertion in model container [2020-09-25 04:20:21,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 04:20:21" (3/3) ... [2020-09-25 04:20:21,400 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o1000.c [2020-09-25 04:20:21,411 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 04:20:21,421 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 04:20:21,442 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 04:20:21,471 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 04:20:21,471 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 04:20:21,472 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 04:20:21,472 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 04:20:21,472 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 04:20:21,472 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 04:20:21,472 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 04:20:21,472 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 04:20:21,491 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-09-25 04:20:21,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 04:20:21,498 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:21,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:21,499 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:21,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:21,506 INFO L82 PathProgramCache]: Analyzing trace with hash -1651991454, now seen corresponding path program 1 times [2020-09-25 04:20:21,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:21,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456013845] [2020-09-25 04:20:21,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:21,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:21,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:21,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 04:20:21,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:21,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-09-25 04:20:21,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:21,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 04:20:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-09-25 04:20:21,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:21,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 04:20:21,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:21,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:21,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:21,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:21,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:21,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:21,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 04:20:21,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:21,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:21,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:21,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:21,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:21,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:21,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:21,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:21,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:21,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:21,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:21,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 04:20:21,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:21,833 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:21,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:21,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:21,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:21,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 04:20:21,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 04:20:21,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456013845] [2020-09-25 04:20:21,885 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 04:20:21,885 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 04:20:21,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419628645] [2020-09-25 04:20:21,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 04:20:21,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:21,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 04:20:21,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 04:20:21,913 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-09-25 04:20:21,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:21,988 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 04:20:21,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 04:20:21,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 04:20:21,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:22,004 INFO L225 Difference]: With dead ends: 37 [2020-09-25 04:20:22,005 INFO L226 Difference]: Without dead ends: 22 [2020-09-25 04:20:22,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 04:20:22,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-09-25 04:20:22,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-09-25 04:20:22,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-09-25 04:20:22,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2020-09-25 04:20:22,078 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 16 [2020-09-25 04:20:22,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:22,078 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2020-09-25 04:20:22,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 04:20:22,079 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2020-09-25 04:20:22,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-25 04:20:22,081 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:22,082 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:22,082 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 04:20:22,083 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:22,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:22,083 INFO L82 PathProgramCache]: Analyzing trace with hash 189324707, now seen corresponding path program 1 times [2020-09-25 04:20:22,084 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:22,084 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288870769] [2020-09-25 04:20:22,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:22,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:22,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:22,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 04:20:22,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:22,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 267 [2020-09-25 04:20:22,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:22,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:22,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 04:20:22,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-09-25 04:20:22,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-25 04:20:22,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:22,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:22,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:22,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:22,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:22,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:22,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:22,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:20:22,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:22,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:22,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:22,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:22,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:22,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:22,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:22,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:22,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:22,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:20:22,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:22,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-25 04:20:22,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:22,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:22,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:20:22,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:22,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:22,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:22,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:22,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:22,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:22,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:22,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 04:20:22,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:22,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:22,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:22,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:22,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:22,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:22,685 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 04:20:22,685 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288870769] [2020-09-25 04:20:22,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:20:22,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 04:20:22,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54322887] [2020-09-25 04:20:22,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 04:20:22,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:22,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 04:20:22,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 04:20:22,690 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 7 states. [2020-09-25 04:20:22,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:22,759 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-09-25 04:20:22,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 04:20:22,760 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-09-25 04:20:22,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:22,761 INFO L225 Difference]: With dead ends: 31 [2020-09-25 04:20:22,761 INFO L226 Difference]: Without dead ends: 26 [2020-09-25 04:20:22,763 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:20:22,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-25 04:20:22,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-25 04:20:22,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-25 04:20:22,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-25 04:20:22,771 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 23 [2020-09-25 04:20:22,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:22,771 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-25 04:20:22,771 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 04:20:22,771 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-25 04:20:22,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-09-25 04:20:22,773 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:22,773 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:22,773 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 04:20:22,774 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:22,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:22,774 INFO L82 PathProgramCache]: Analyzing trace with hash -1416732684, now seen corresponding path program 2 times [2020-09-25 04:20:22,775 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:22,775 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1917403041] [2020-09-25 04:20:22,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:22,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:22,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:22,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:22,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 43 [2020-09-25 04:20:22,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:22,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 181 [2020-09-25 04:20:22,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:22,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:22,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 04:20:22,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-09-25 04:20:22,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 04:20:22,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:23,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:23,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:23,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:23,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:23,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:23,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:23,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:20:23,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:23,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:23,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:23,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:23,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:23,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:23,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:23,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:23,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:23,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:20:23,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:23,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 04:20:23,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:23,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:23,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:20:23,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:23,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:20:23,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:23,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:23,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:23,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:23,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:23,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:20:23,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:23,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 04:20:23,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:23,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:23,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:20:23,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:23,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:23,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:23,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:23,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:23,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:23,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:20:23,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:23,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:23,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:23,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:23,294 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-25 04:20:23,294 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1917403041] [2020-09-25 04:20:23,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:20:23,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 04:20:23,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875916802] [2020-09-25 04:20:23,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 04:20:23,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:23,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 04:20:23,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-09-25 04:20:23,297 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 9 states. [2020-09-25 04:20:23,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:23,387 INFO L93 Difference]: Finished difference Result 35 states and 36 transitions. [2020-09-25 04:20:23,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 04:20:23,388 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 30 [2020-09-25 04:20:23,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:23,389 INFO L225 Difference]: With dead ends: 35 [2020-09-25 04:20:23,390 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 04:20:23,390 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2020-09-25 04:20:23,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 04:20:23,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-25 04:20:23,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-25 04:20:23,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-09-25 04:20:23,397 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 30 [2020-09-25 04:20:23,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:23,398 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-09-25 04:20:23,398 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 04:20:23,398 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-09-25 04:20:23,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-25 04:20:23,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:23,400 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:23,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 04:20:23,400 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:23,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:23,401 INFO L82 PathProgramCache]: Analyzing trace with hash -209476043, now seen corresponding path program 3 times [2020-09-25 04:20:23,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:23,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1330108756] [2020-09-25 04:20:23,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:23,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:23,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:23,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:23,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-25 04:20:23,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:23,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 215 [2020-09-25 04:20:23,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:23,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:23,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 04:20:23,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-09-25 04:20:23,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 04:20:23,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:23,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:23,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:23,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:23,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:23,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:23,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:23,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:20:23,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:23,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:23,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:23,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:23,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:23,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:23,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:23,898 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:23,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:20:23,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:23,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-09-25 04:20:23,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:23,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:23,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:20:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:23,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:20:23,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 04:20:23,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:23,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:23,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:24,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:24,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:20:24,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:24,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 04:20:24,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:24,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:20:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:24,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:20:24,094 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:24,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:24,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:24,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:24,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:20:24,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:24,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 04:20:24,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:24,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:24,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:24,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:24,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:20:24,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:24,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:24,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:24,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:24,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:24,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:24,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:24,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 04:20:24,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:24,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:24,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:24,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:24,270 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-09-25 04:20:24,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1330108756] [2020-09-25 04:20:24,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:20:24,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 04:20:24,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685000880] [2020-09-25 04:20:24,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 04:20:24,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:24,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 04:20:24,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-25 04:20:24,273 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 11 states. [2020-09-25 04:20:24,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:24,403 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 04:20:24,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 04:20:24,404 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-09-25 04:20:24,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:24,405 INFO L225 Difference]: With dead ends: 39 [2020-09-25 04:20:24,406 INFO L226 Difference]: Without dead ends: 34 [2020-09-25 04:20:24,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:20:24,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-25 04:20:24,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-09-25 04:20:24,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-09-25 04:20:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2020-09-25 04:20:24,413 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 37 [2020-09-25 04:20:24,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:24,414 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2020-09-25 04:20:24,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 04:20:24,414 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2020-09-25 04:20:24,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-09-25 04:20:24,415 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:24,416 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:24,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 04:20:24,416 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:24,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:24,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1007399302, now seen corresponding path program 4 times [2020-09-25 04:20:24,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:24,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1736943214] [2020-09-25 04:20:24,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:24,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:24,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:24,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 04:20:24,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:24,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 04:20:24,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:24,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 04:20:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-09-25 04:20:24,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 04:20:24,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:24,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:24,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:24,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:24,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:24,756 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:24,756 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:20:24,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:24,756 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:24,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:24,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:24,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:24,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:24,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:24,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:24,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:24,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:24,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 04:20:24,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:24,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 04:20:24,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:24,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:20:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:24,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:20:24,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:25,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:25,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:25,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:25,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:25,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:20:25,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:25,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 04:20:25,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:25,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:25,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:20:25,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:25,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:20:25,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:25,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:25,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:25,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:25,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:20:25,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:25,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-09-25 04:20:25,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:25,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:25,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:20:25,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:25,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:20:25,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:25,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:25,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:25,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:25,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:25,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:20:25,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:25,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-09-25 04:20:25,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:25,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:25,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:25,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:25,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:20:25,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:25,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:25,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:25,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:25,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:25,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:25,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:20:25,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:25,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:25,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:25,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:25,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:25,463 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-25 04:20:25,464 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1736943214] [2020-09-25 04:20:25,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:20:25,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 04:20:25,465 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529151384] [2020-09-25 04:20:25,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 04:20:25,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:25,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 04:20:25,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-09-25 04:20:25,466 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 13 states. [2020-09-25 04:20:25,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:25,636 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-09-25 04:20:25,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 04:20:25,636 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 44 [2020-09-25 04:20:25,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:25,638 INFO L225 Difference]: With dead ends: 43 [2020-09-25 04:20:25,638 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 04:20:25,639 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-25 04:20:25,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 04:20:25,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 04:20:25,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 04:20:25,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 04:20:25,645 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 44 [2020-09-25 04:20:25,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:25,646 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 04:20:25,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 04:20:25,646 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 04:20:25,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 04:20:25,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:25,648 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:25,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 04:20:25,648 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:25,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:25,648 INFO L82 PathProgramCache]: Analyzing trace with hash -1787659065, now seen corresponding path program 5 times [2020-09-25 04:20:25,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:25,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135538391] [2020-09-25 04:20:25,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:25,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:26,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:26,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 04:20:26,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:26,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 349 [2020-09-25 04:20:26,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:26,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:26,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 04:20:26,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-25 04:20:26,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 04:20:26,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:26,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:26,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:26,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:26,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:26,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:26,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:26,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:20:26,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:26,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:26,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:26,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:26,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:26,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:26,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:26,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:20:26,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:26,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 04:20:26,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:26,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:20:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:20:26,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:26,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:26,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:26,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:26,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:26,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 04:20:26,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-25 04:20:26,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:26,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:20:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:20:26,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:26,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:26,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:26,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:26,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:26,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:20:26,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:26,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-09-25 04:20:26,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:26,778 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:26,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:20:26,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:26,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:20:26,779 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:26,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:26,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:26,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:26,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:20:26,889 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:26,889 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 04:20:26,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:26,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:20:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:26,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:20:26,890 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:26,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:26,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:26,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:26,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:20:26,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:26,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 04:20:26,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:26,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:26,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:26,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:20:26,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:27,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:27,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:27,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:27,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:27,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:27,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:27,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 04:20:27,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:27,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:27,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:27,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:27,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:27,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:27,068 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-09-25 04:20:27,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135538391] [2020-09-25 04:20:27,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:20:27,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 04:20:27,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793617877] [2020-09-25 04:20:27,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 04:20:27,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:27,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 04:20:27,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-09-25 04:20:27,071 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 15 states. [2020-09-25 04:20:27,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:27,339 INFO L93 Difference]: Finished difference Result 47 states and 48 transitions. [2020-09-25 04:20:27,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-25 04:20:27,340 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 51 [2020-09-25 04:20:27,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:27,342 INFO L225 Difference]: With dead ends: 47 [2020-09-25 04:20:27,342 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 04:20:27,343 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2020-09-25 04:20:27,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 04:20:27,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 04:20:27,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 04:20:27,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-09-25 04:20:27,350 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 51 [2020-09-25 04:20:27,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:27,350 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-09-25 04:20:27,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 04:20:27,350 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-09-25 04:20:27,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-09-25 04:20:27,351 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:27,352 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:27,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 04:20:27,352 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:27,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:27,352 INFO L82 PathProgramCache]: Analyzing trace with hash -1360883432, now seen corresponding path program 6 times [2020-09-25 04:20:27,353 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:27,353 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1372563720] [2020-09-25 04:20:27,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:27,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:27,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:27,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:27,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-09-25 04:20:27,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:27,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 496 [2020-09-25 04:20:27,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:27,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:27,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 04:20:27,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 48 [2020-09-25 04:20:27,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 04:20:27,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:27,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:27,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:27,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:27,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:27,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:27,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:20:27,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:27,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:27,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:27,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:27,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:27,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:28,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:28,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:20:28,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:28,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 374 [2020-09-25 04:20:28,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:28,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:28,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:20:28,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:28,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 04:20:28,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:28,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:28,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:28,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:28,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:28,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:20:28,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:28,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-09-25 04:20:28,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:28,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:20:28,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:28,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:20:28,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:28,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:28,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:28,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:28,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:28,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 04:20:28,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:28,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-09-25 04:20:28,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:28,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:28,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:20:28,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:28,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:20:28,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:28,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:28,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:29,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:29,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:20:29,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:29,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-09-25 04:20:29,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:29,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:29,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:20:29,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:29,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:20:29,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:29,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:29,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:29,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:29,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:20:29,229 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:29,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 04:20:29,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:29,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:20:29,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:29,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:20:29,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:29,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:29,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:29,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:29,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:20:29,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:29,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 04:20:29,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:29,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:29,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:29,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:29,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:20:29,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:29,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:29,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:29,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:29,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:29,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:29,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 04:20:29,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:29,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:29,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:29,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:29,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:29,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:29,429 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-09-25 04:20:29,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1372563720] [2020-09-25 04:20:29,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:20:29,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 04:20:29,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [187852947] [2020-09-25 04:20:29,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 04:20:29,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:29,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 04:20:29,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-09-25 04:20:29,434 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 17 states. [2020-09-25 04:20:29,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:29,749 INFO L93 Difference]: Finished difference Result 51 states and 52 transitions. [2020-09-25 04:20:29,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-09-25 04:20:29,749 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 58 [2020-09-25 04:20:29,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:29,751 INFO L225 Difference]: With dead ends: 51 [2020-09-25 04:20:29,751 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 04:20:29,754 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2020-09-25 04:20:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 04:20:29,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2020-09-25 04:20:29,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2020-09-25 04:20:29,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 47 transitions. [2020-09-25 04:20:29,763 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 47 transitions. Word has length 58 [2020-09-25 04:20:29,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:29,764 INFO L479 AbstractCegarLoop]: Abstraction has 46 states and 47 transitions. [2020-09-25 04:20:29,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 04:20:29,764 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 47 transitions. [2020-09-25 04:20:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-25 04:20:29,769 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:29,769 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:29,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 04:20:29,773 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:29,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:29,773 INFO L82 PathProgramCache]: Analyzing trace with hash -807968423, now seen corresponding path program 7 times [2020-09-25 04:20:29,774 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:29,774 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191542607] [2020-09-25 04:20:29,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:29,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:30,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:30,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 04:20:30,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:30,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 637 [2020-09-25 04:20:30,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:30,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 04:20:30,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 53 [2020-09-25 04:20:30,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-25 04:20:30,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:30,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:30,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:30,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:30,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:30,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:30,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:30,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:20:30,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:30,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:30,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:30,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:30,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:30,526 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:31,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:31,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 04:20:31,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:31,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 534 [2020-09-25 04:20:31,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:31,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:31,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:20:31,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:31,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:20:31,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:31,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:31,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:31,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:31,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:20:31,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:31,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-09-25 04:20:31,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:31,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:31,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:20:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:31,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 04:20:31,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:31,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:31,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:31,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:31,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:20:31,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:31,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-25 04:20:31,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:31,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:31,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:20:31,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:31,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:20:31,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:31,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:31,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:32,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:32,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 04:20:32,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:32,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-09-25 04:20:32,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:32,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:32,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:20:32,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:32,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:20:32,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:32,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:32,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:32,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:32,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:32,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:20:32,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:32,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 04:20:32,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:32,252 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:32,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:20:32,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:32,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:20:32,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:32,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:32,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:32,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:32,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:20:32,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:32,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-25 04:20:32,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:32,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:32,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:20:32,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:32,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:20:32,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:32,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:32,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:32,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:32,453 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:32,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:20:32,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:32,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 04:20:32,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:32,455 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:32,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:20:32,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:32,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:32,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:32,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:32,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:32,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:32,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:20:32,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:32,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:32,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:32,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:32,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:32,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:32,571 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-09-25 04:20:32,572 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191542607] [2020-09-25 04:20:32,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:20:32,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-09-25 04:20:32,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479459282] [2020-09-25 04:20:32,573 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-09-25 04:20:32,573 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:32,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-09-25 04:20:32,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-09-25 04:20:32,574 INFO L87 Difference]: Start difference. First operand 46 states and 47 transitions. Second operand 19 states. [2020-09-25 04:20:32,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:32,902 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-09-25 04:20:32,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-25 04:20:32,903 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 65 [2020-09-25 04:20:32,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:32,905 INFO L225 Difference]: With dead ends: 55 [2020-09-25 04:20:32,905 INFO L226 Difference]: Without dead ends: 50 [2020-09-25 04:20:32,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2020-09-25 04:20:32,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-25 04:20:32,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-09-25 04:20:32,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 04:20:32,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-09-25 04:20:32,920 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 65 [2020-09-25 04:20:32,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:32,920 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-09-25 04:20:32,920 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-09-25 04:20:32,921 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-09-25 04:20:32,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 04:20:32,924 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:32,924 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:32,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 04:20:32,925 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:32,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:32,925 INFO L82 PathProgramCache]: Analyzing trace with hash -705364310, now seen corresponding path program 8 times [2020-09-25 04:20:32,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:32,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [945048285] [2020-09-25 04:20:32,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:32,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:32,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:33,697 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:33,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-09-25 04:20:33,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:33,698 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 754 [2020-09-25 04:20:33,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:33,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:33,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 04:20:33,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 58 [2020-09-25 04:20:33,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 04:20:33,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:33,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:33,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:33,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:33,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:33,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:33,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:33,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:20:33,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:33,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:33,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:33,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:33,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:33,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:33,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:33,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:33,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:34,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:34,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 04:20:34,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:34,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 664 [2020-09-25 04:20:34,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:34,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:20:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:34,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:20:34,430 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:34,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:34,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:34,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:34,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:34,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 04:20:34,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:34,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 465 [2020-09-25 04:20:34,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:34,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:34,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:20:34,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:34,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:20:34,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:34,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:34,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:34,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:35,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:35,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:20:35,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:35,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-25 04:20:35,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:35,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:20:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:35,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 04:20:35,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:35,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:35,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:35,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:35,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:20:35,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:35,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-09-25 04:20:35,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:35,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:35,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:20:35,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:35,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:20:35,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:35,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:35,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:35,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:35,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 04:20:35,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:35,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 158 [2020-09-25 04:20:35,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:35,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:35,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:20:35,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:35,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:20:35,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:35,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:35,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:36,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:36,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:20:36,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:36,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-09-25 04:20:36,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:36,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:20:36,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:36,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:20:36,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:36,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:36,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:36,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:36,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:36,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:20:36,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:36,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-25 04:20:36,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:36,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:36,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:20:36,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:36,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:20:36,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:36,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:36,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:36,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:36,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:36,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:20:36,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:36,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 04:20:36,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:36,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:36,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:36,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:20:36,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:36,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:36,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:36,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:36,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:36,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:36,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 04:20:36,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:36,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:36,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:36,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:36,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:36,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 128 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-09-25 04:20:36,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [945048285] [2020-09-25 04:20:36,411 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:20:36,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-09-25 04:20:36,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894478395] [2020-09-25 04:20:36,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-09-25 04:20:36,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:36,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-09-25 04:20:36,413 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-09-25 04:20:36,413 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 21 states. [2020-09-25 04:20:36,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:36,800 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 04:20:36,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-09-25 04:20:36,800 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 72 [2020-09-25 04:20:36,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:36,802 INFO L225 Difference]: With dead ends: 59 [2020-09-25 04:20:36,802 INFO L226 Difference]: Without dead ends: 54 [2020-09-25 04:20:36,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=75, Invalid=795, Unknown=0, NotChecked=0, Total=870 [2020-09-25 04:20:36,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-09-25 04:20:36,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-09-25 04:20:36,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 04:20:36,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-09-25 04:20:36,816 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 72 [2020-09-25 04:20:36,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:36,817 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-09-25 04:20:36,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-09-25 04:20:36,817 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-09-25 04:20:36,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-09-25 04:20:36,818 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:36,818 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:36,818 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 04:20:36,818 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:36,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:36,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1418439701, now seen corresponding path program 9 times [2020-09-25 04:20:36,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:36,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910842880] [2020-09-25 04:20:36,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:36,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:37,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:37,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-09-25 04:20:37,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:37,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-09-25 04:20:37,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:37,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:37,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 04:20:37,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 63 [2020-09-25 04:20:37,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:20:37,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:37,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:37,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:37,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:37,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:37,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:37,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:37,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:20:37,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:37,729 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:37,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:37,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:37,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:37,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:37,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:38,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:38,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 04:20:38,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:38,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 780 [2020-09-25 04:20:38,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:38,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:38,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:20:38,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:38,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 04:20:38,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:38,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:38,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:39,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:39,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 04:20:39,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:39,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 561 [2020-09-25 04:20:39,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:39,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:20:39,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:39,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:20:39,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:39,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:39,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:39,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:39,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 04:20:39,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:39,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 394 [2020-09-25 04:20:39,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:39,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:39,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:20:39,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:39,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:20:39,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:39,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:39,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:39,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:39,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:20:39,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:39,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 308 [2020-09-25 04:20:39,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:39,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:39,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:20:39,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:39,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 04:20:39,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:39,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:39,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:40,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:40,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:20:40,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:40,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-09-25 04:20:40,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:40,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:20:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:40,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:20:40,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:40,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:40,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:40,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:40,408 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:40,408 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 04:20:40,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:40,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 142 [2020-09-25 04:20:40,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:40,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:20:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:40,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:20:40,409 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:40,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:40,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:40,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:40,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:20:40,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:40,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 04:20:40,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:40,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:40,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:20:40,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:40,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:20:40,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:40,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:40,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:40,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:40,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:40,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:20:40,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:40,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 04:20:40,684 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:40,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:40,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:20:40,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:40,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:20:40,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:40,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:40,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:40,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:40,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:40,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:20:40,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:40,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 04:20:40,776 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:40,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:40,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:40,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:40,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:20:40,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:40,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:40,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:40,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:40,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:40,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:40,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:40,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:20:40,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:40,853 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:40,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:40,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:40,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:40,914 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-09-25 04:20:40,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910842880] [2020-09-25 04:20:40,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:20:40,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-09-25 04:20:40,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133534370] [2020-09-25 04:20:40,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-09-25 04:20:40,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:40,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-09-25 04:20:40,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-09-25 04:20:40,917 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 23 states. [2020-09-25 04:20:41,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:41,460 INFO L93 Difference]: Finished difference Result 63 states and 64 transitions. [2020-09-25 04:20:41,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-25 04:20:41,461 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 79 [2020-09-25 04:20:41,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:41,462 INFO L225 Difference]: With dead ends: 63 [2020-09-25 04:20:41,462 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 04:20:41,464 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=83, Invalid=973, Unknown=0, NotChecked=0, Total=1056 [2020-09-25 04:20:41,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 04:20:41,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 04:20:41,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 04:20:41,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 04:20:41,470 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 79 [2020-09-25 04:20:41,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:41,471 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 04:20:41,471 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-09-25 04:20:41,471 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 04:20:41,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2020-09-25 04:20:41,472 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:41,472 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:41,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 04:20:41,472 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:41,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:41,473 INFO L82 PathProgramCache]: Analyzing trace with hash -182126020, now seen corresponding path program 10 times [2020-09-25 04:20:41,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:41,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430518209] [2020-09-25 04:20:41,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:41,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:41,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:42,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:42,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 04:20:42,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:42,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 916 [2020-09-25 04:20:42,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:42,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 04:20:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-09-25 04:20:42,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 04:20:42,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:42,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:42,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:42,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:42,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:42,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:42,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:20:42,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:42,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:42,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:42,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:42,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:42,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:43,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:43,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 04:20:43,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:43,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 739 [2020-09-25 04:20:43,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:43,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:43,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:20:43,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:43,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 04:20:43,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:43,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:43,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:43,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:43,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:43,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 04:20:43,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:43,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-09-25 04:20:43,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:43,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:43,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:20:43,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:43,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 04:20:43,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:43,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:43,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:43,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:44,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:44,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 04:20:44,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:44,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-09-25 04:20:44,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:44,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:44,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:20:44,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:44,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:20:44,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:44,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:44,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:44,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:44,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:44,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 04:20:44,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:44,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-09-25 04:20:44,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:44,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:44,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:20:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:44,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:20:44,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:44,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:44,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:45,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:45,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:20:45,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:45,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-09-25 04:20:45,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:45,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:20:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:45,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 04:20:45,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:45,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:45,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:45,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:45,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:45,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:20:45,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:45,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-09-25 04:20:45,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:45,490 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:45,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:20:45,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:45,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:20:45,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:45,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:45,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:45,678 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:45,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 04:20:45,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:45,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-09-25 04:20:45,679 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:45,679 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:20:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:45,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:20:45,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:45,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:45,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:45,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:45,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:45,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:20:45,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:45,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 04:20:45,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:45,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:45,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:20:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:45,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:20:45,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:45,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:45,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:45,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:45,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:20:45,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:45,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 04:20:45,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:45,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:20:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:45,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:20:45,955 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:46,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:46,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:46,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:46,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:20:46,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:46,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 04:20:46,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:46,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:46,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:20:46,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:46,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:46,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:46,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:46,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:46,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:46,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 04:20:46,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:46,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:46,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:46,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:46,208 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-09-25 04:20:46,208 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430518209] [2020-09-25 04:20:46,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:20:46,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-09-25 04:20:46,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139999755] [2020-09-25 04:20:46,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-25 04:20:46,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:46,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-25 04:20:46,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-09-25 04:20:46,210 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 25 states. [2020-09-25 04:20:46,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:46,881 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-09-25 04:20:46,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-09-25 04:20:46,881 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 86 [2020-09-25 04:20:46,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:46,882 INFO L225 Difference]: With dead ends: 67 [2020-09-25 04:20:46,883 INFO L226 Difference]: Without dead ends: 62 [2020-09-25 04:20:46,884 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=91, Invalid=1169, Unknown=0, NotChecked=0, Total=1260 [2020-09-25 04:20:46,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-09-25 04:20:46,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-09-25 04:20:46,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-09-25 04:20:46,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-09-25 04:20:46,891 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 86 [2020-09-25 04:20:46,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:46,891 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-09-25 04:20:46,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-25 04:20:46,891 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-09-25 04:20:46,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-09-25 04:20:46,892 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:46,892 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:46,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 04:20:46,893 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:46,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:46,893 INFO L82 PathProgramCache]: Analyzing trace with hash 1527469181, now seen corresponding path program 11 times [2020-09-25 04:20:46,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:46,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [235306860] [2020-09-25 04:20:46,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:46,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:47,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:47,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-09-25 04:20:47,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:47,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1014 [2020-09-25 04:20:47,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:47,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:47,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 04:20:47,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-09-25 04:20:47,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 04:20:47,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:47,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:47,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:47,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:47,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:47,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:47,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 04:20:47,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:47,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:47,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:47,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:47,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:47,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:47,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:48,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:48,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:48,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 04:20:48,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:48,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 912 [2020-09-25 04:20:48,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:48,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 04:20:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:48,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 04:20:48,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:48,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:48,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:49,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:49,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 04:20:49,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:49,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 729 [2020-09-25 04:20:49,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:49,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:20:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:49,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 04:20:49,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:49,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:49,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:49,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:50,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:50,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 04:20:50,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:50,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-09-25 04:20:50,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:50,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:20:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:50,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 04:20:50,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:50,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:50,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:50,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:50,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 04:20:50,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:50,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 460 [2020-09-25 04:20:50,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:50,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:20:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:50,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:20:50,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:50,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:50,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:51,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:51,225 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 04:20:51,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:51,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-09-25 04:20:51,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:51,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:20:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:51,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:20:51,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:51,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:51,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:51,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:51,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:20:51,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:51,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 270 [2020-09-25 04:20:51,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:51,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:20:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 04:20:51,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:51,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:51,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:51,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:51,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:20:51,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:51,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-09-25 04:20:51,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:51,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:20:51,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:51,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:20:51,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:51,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:51,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:51,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:52,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:52,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 04:20:52,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:52,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-09-25 04:20:52,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:52,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:52,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:20:52,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:52,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:20:52,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:52,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:52,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:52,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:52,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:20:52,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:52,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-09-25 04:20:52,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:52,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:52,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:20:52,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:52,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:20:52,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:52,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:52,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:52,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:52,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:52,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:20:52,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:52,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-09-25 04:20:52,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:52,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:20:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:52,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:20:52,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:52,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:52,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:52,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:52,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:52,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:20:52,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:52,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-25 04:20:52,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:52,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:20:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:52,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:20:52,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:52,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:52,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:52,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:52,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:52,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:20:52,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:52,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 04:20:52,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:52,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:52,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:20:52,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:52,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:20:52,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:52,588 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-09-25 04:20:52,588 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [235306860] [2020-09-25 04:20:52,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:20:52,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-09-25 04:20:52,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220195198] [2020-09-25 04:20:52,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-09-25 04:20:52,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:20:52,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-09-25 04:20:52,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-09-25 04:20:52,590 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 27 states. [2020-09-25 04:20:53,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:20:53,380 INFO L93 Difference]: Finished difference Result 71 states and 72 transitions. [2020-09-25 04:20:53,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-09-25 04:20:53,380 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 93 [2020-09-25 04:20:53,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:20:53,382 INFO L225 Difference]: With dead ends: 71 [2020-09-25 04:20:53,382 INFO L226 Difference]: Without dead ends: 66 [2020-09-25 04:20:53,383 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=99, Invalid=1383, Unknown=0, NotChecked=0, Total=1482 [2020-09-25 04:20:53,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-25 04:20:53,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-25 04:20:53,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-25 04:20:53,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-09-25 04:20:53,398 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 93 [2020-09-25 04:20:53,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:20:53,399 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-09-25 04:20:53,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-09-25 04:20:53,399 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-09-25 04:20:53,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-09-25 04:20:53,400 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:20:53,400 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:20:53,401 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 04:20:53,401 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:20:53,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:20:53,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1034648626, now seen corresponding path program 12 times [2020-09-25 04:20:53,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:20:53,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052973883] [2020-09-25 04:20:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:20:53,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:53,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:54,627 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:54,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-09-25 04:20:54,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:54,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1204 [2020-09-25 04:20:54,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:54,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:54,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 04:20:54,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 04:20:54,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 04:20:54,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:54,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:20:54,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:54,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:54,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:54,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:20:54,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:54,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:20:54,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:54,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:54,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:20:54,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:54,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:20:54,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:54,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:20:54,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:54,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:55,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:55,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 04:20:55,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:55,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1084 [2020-09-25 04:20:55,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:55,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:55,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 04:20:55,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:55,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 04:20:55,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:55,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:55,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:55,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:56,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:56,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 04:20:56,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:56,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 936 [2020-09-25 04:20:56,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:56,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:56,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 04:20:56,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:56,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 04:20:56,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:56,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:56,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:57,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:57,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 04:20:57,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:57,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 727 [2020-09-25 04:20:57,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:57,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:57,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:20:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:57,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 04:20:57,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:57,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:57,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:58,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:58,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 04:20:58,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:58,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-09-25 04:20:58,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:58,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:58,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:20:58,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:58,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 04:20:58,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:58,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:58,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:58,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:58,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 04:20:58,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:58,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 525 [2020-09-25 04:20:58,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:58,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:58,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:20:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:58,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:20:58,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:58,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:58,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:59,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:59,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 04:20:59,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:59,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-09-25 04:20:59,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:59,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:59,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:20:59,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:59,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:20:59,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:20:59,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:59,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:59,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:59,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:59,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:20:59,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:59,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-09-25 04:20:59,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:59,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:20:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:59,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 04:20:59,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:20:59,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:20:59,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:20:59,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:20:59,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:20:59,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:20:59,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:20:59,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 04:20:59,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:20:59,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:20:59,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:20:59,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:20:59,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:20:59,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:00,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:00,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:00,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:00,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:00,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 04:21:00,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:00,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 119 [2020-09-25 04:21:00,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:00,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:00,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:21:00,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:00,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:21:00,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:00,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:00,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:00,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:00,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:21:00,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:00,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-09-25 04:21:00,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:00,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:00,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:21:00,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:00,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:00,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:00,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:00,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:21:00,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:00,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 04:21:00,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:00,438 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:00,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:00,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:00,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:21:00,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:00,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:00,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:00,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:00,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:21:00,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:00,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 04:21:00,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:00,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:00,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:00,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:21:00,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:00,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:00,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:00,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:00,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:21:00,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:00,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 04:21:00,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:00,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:00,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:21:00,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:00,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:21:00,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:00,787 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-09-25 04:21:00,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052973883] [2020-09-25 04:21:00,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:00,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-09-25 04:21:00,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769749777] [2020-09-25 04:21:00,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-09-25 04:21:00,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:00,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-09-25 04:21:00,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-09-25 04:21:00,792 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 29 states. [2020-09-25 04:21:01,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:01,766 INFO L93 Difference]: Finished difference Result 75 states and 76 transitions. [2020-09-25 04:21:01,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-25 04:21:01,767 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 100 [2020-09-25 04:21:01,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:01,768 INFO L225 Difference]: With dead ends: 75 [2020-09-25 04:21:01,768 INFO L226 Difference]: Without dead ends: 70 [2020-09-25 04:21:01,769 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=107, Invalid=1615, Unknown=0, NotChecked=0, Total=1722 [2020-09-25 04:21:01,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-25 04:21:01,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-25 04:21:01,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-25 04:21:01,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 71 transitions. [2020-09-25 04:21:01,786 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 71 transitions. Word has length 100 [2020-09-25 04:21:01,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:01,786 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 71 transitions. [2020-09-25 04:21:01,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-09-25 04:21:01,787 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 71 transitions. [2020-09-25 04:21:01,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-25 04:21:01,788 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:01,790 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:01,791 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 04:21:01,791 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:01,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:01,791 INFO L82 PathProgramCache]: Analyzing trace with hash 996041487, now seen corresponding path program 13 times [2020-09-25 04:21:01,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:01,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1847841198] [2020-09-25 04:21:01,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:01,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:01,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:03,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:03,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-09-25 04:21:03,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:03,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1425 [2020-09-25 04:21:03,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:03,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:03,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 04:21:03,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-09-25 04:21:03,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 04:21:03,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:03,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:03,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:03,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:03,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:03,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:03,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:03,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:03,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:03,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:03,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:03,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:03,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:03,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:03,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:03,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:03,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:04,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:04,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 04:21:04,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:04,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1272 [2020-09-25 04:21:04,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:04,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:04,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 04:21:04,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:04,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 04:21:04,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:04,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:04,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:05,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:05,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 04:21:05,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:05,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1116 [2020-09-25 04:21:05,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:05,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 04:21:05,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:05,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 04:21:05,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:05,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:05,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:06,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:06,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 04:21:06,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 951 [2020-09-25 04:21:06,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:06,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 04:21:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 04:21:06,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:06,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:06,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:06,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:07,508 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:07,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 04:21:07,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:07,509 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 711 [2020-09-25 04:21:07,509 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:07,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:07,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 04:21:07,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:07,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 04:21:07,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:07,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:07,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:08,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:08,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 04:21:08,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:08,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 567 [2020-09-25 04:21:08,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:08,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 04:21:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 04:21:08,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:08,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:08,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:08,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:08,655 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-09-25 04:21:08,655 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:08,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-09-25 04:21:08,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:08,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 04:21:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:08,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 04:21:08,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:08,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:08,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:08,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:09,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:09,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 04:21:09,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:09,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 348 [2020-09-25 04:21:09,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:09,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 04:21:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:09,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 04:21:09,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:09,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:09,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:09,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:09,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 04:21:09,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:09,418 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 04:21:09,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:09,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:09,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 04:21:09,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:09,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 04:21:09,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:09,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:09,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:09,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:09,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:09,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 56 [2020-09-25 04:21:09,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:09,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-25 04:21:09,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:09,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:09,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 04:21:09,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:09,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 04:21:09,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:09,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:09,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:09,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:09,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 04:21:09,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:09,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 04:21:09,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:09,873 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 04:21:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:09,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 04:21:09,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:09,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:09,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:09,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:10,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:10,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-09-25 04:21:10,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:10,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-09-25 04:21:10,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:10,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:10,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 04:21:10,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:10,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-09-25 04:21:10,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:10,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:10,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:10,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:10,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:10,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-09-25 04:21:10,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:10,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-25 04:21:10,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:10,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:10,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 04:21:10,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:10,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 04:21:10,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:10,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:10,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:10,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:10,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:10,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-09-25 04:21:10,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:10,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-09-25 04:21:10,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:10,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:10,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 04:21:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:10,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 04:21:10,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:10,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:10,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:10,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:10,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 04:21:10,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:10,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 04:21:10,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:10,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:10,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 04:21:10,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:10,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 04:21:10,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 04:21:10,480 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 338 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-09-25 04:21:10,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1847841198] [2020-09-25 04:21:10,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 04:21:10,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-09-25 04:21:10,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925216948] [2020-09-25 04:21:10,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-09-25 04:21:10,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 04:21:10,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-09-25 04:21:10,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-09-25 04:21:10,482 INFO L87 Difference]: Start difference. First operand 70 states and 71 transitions. Second operand 31 states. [2020-09-25 04:21:11,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 04:21:11,552 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 04:21:11,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-25 04:21:11,553 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 107 [2020-09-25 04:21:11,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 04:21:11,554 INFO L225 Difference]: With dead ends: 79 [2020-09-25 04:21:11,554 INFO L226 Difference]: Without dead ends: 74 [2020-09-25 04:21:11,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=115, Invalid=1865, Unknown=0, NotChecked=0, Total=1980 [2020-09-25 04:21:11,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-09-25 04:21:11,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-09-25 04:21:11,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-09-25 04:21:11,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-09-25 04:21:11,569 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 107 [2020-09-25 04:21:11,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 04:21:11,569 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-09-25 04:21:11,569 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-09-25 04:21:11,569 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-09-25 04:21:11,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-09-25 04:21:11,575 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 04:21:11,575 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 04:21:11,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 04:21:11,575 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 04:21:11,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 04:21:11,576 INFO L82 PathProgramCache]: Analyzing trace with hash 1701157728, now seen corresponding path program 14 times [2020-09-25 04:21:11,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 04:21:11,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350634877] [2020-09-25 04:21:11,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 04:21:11,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:11,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:13,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:13,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 04:21:13,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:13,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1724 [2020-09-25 04:21:13,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:13,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 04:21:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 88 [2020-09-25 04:21:13,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 04:21:13,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:13,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 04:21:13,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:13,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:13,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:13,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 04:21:13,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:13,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 04:21:13,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:13,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:13,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 04:21:13,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:13,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 04:21:13,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:13,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-25 04:21:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:13,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:14,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:14,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-25 04:21:14,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:14,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1488 [2020-09-25 04:21:14,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:14,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:14,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 04:21:14,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:14,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 132 [2020-09-25 04:21:14,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:14,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:14,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:14,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:16,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:16,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-25 04:21:16,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:16,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1300 [2020-09-25 04:21:16,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:16,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:16,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 04:21:16,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:16,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-09-25 04:21:16,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:16,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:16,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:16,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:17,361 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:17,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-25 04:21:17,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:17,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1072 [2020-09-25 04:21:17,362 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:17,362 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 04:21:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:17,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-25 04:21:17,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:17,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:17,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 04:21:18,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 04:21:18,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 04:21:18,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 04:21:18,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 883 [2020-09-25 04:21:18,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 04:21:18,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-09-25 04:21:18,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 04:21:18,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 04:21:18,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-09-25 04:21:18,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 04:21:18,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 04:21:18,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 04:21:18,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking...