/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --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/fibo_15-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:22:13,346 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:22:13,350 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:22:13,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:22:13,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:22:13,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:22:13,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:22:13,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:22:13,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:22:13,384 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:22:13,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:22:13,386 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:22:13,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:22:13,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:22:13,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:22:13,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:22:13,392 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:22:13,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:22:13,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:22:13,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:22:13,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:22:13,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:22:13,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:22:13,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:22:13,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:22:13,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:22:13,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:22:13,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:22:13,413 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:22:13,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:22:13,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:22:13,418 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:22:13,419 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:22:13,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:22:13,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:22:13,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:22:13,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:22:13,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:22:13,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:22:13,426 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:22:13,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:22:13,427 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 13:22:13,481 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:22:13,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:22:13,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:22:13,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:22:13,485 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:22:13,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:22:13,485 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:22:13,486 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:22:13,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:22:13,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:22:13,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:22:13,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:22:13,487 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:22:13,488 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:22:13,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:22:13,489 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:22:13,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:22:13,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:22:13,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:22:13,489 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:22:13,490 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:22:13,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:22:13,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:22:13,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:22:13,491 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:22:13,491 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:22:13,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:22:13,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:22:13,492 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:22:13,492 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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;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=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:22:13,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:22:13,968 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:22:13,973 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:22:13,975 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:22:13,975 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:22:13,977 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_15-2.c [2020-09-25 13:22:14,073 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da3f75373/540aea3d3f3d46ffb2c609059f1c3ae5/FLAGac58cdde9 [2020-09-25 13:22:14,592 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:22:14,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_15-2.c [2020-09-25 13:22:14,602 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da3f75373/540aea3d3f3d46ffb2c609059f1c3ae5/FLAGac58cdde9 [2020-09-25 13:22:14,953 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/da3f75373/540aea3d3f3d46ffb2c609059f1c3ae5 [2020-09-25 13:22:14,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:22:14,974 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:22:14,975 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:22:14,975 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:22:14,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:22:14,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:22:14" (1/1) ... [2020-09-25 13:22:14,985 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@697b2ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:14, skipping insertion in model container [2020-09-25 13:22:14,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:22:14" (1/1) ... [2020-09-25 13:22:14,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:22:15,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:22:15,228 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:22:15,234 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:22:15,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:22:15,265 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:22:15,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:15 WrapperNode [2020-09-25 13:22:15,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:22:15,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:22:15,267 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:22:15,267 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:22:15,280 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:15" (1/1) ... [2020-09-25 13:22:15,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:15" (1/1) ... [2020-09-25 13:22:15,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:15" (1/1) ... [2020-09-25 13:22:15,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:15" (1/1) ... [2020-09-25 13:22:15,290 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:15" (1/1) ... [2020-09-25 13:22:15,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:15" (1/1) ... [2020-09-25 13:22:15,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:15" (1/1) ... [2020-09-25 13:22:15,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:22:15,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:22:15,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:22:15,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:22:15,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:15" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:22:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:22:15,447 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:22:15,448 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo [2020-09-25 13:22:15,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:22:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:22:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:22:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure fibo [2020-09-25 13:22:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:22:15,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:22:15,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:22:15,763 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:22:15,764 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 13:22:15,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:22:15 BoogieIcfgContainer [2020-09-25 13:22:15,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:22:15,774 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:22:15,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:22:15,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:22:15,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:22:14" (1/3) ... [2020-09-25 13:22:15,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6d15e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:22:15, skipping insertion in model container [2020-09-25 13:22:15,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:15" (2/3) ... [2020-09-25 13:22:15,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e6d15e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:22:15, skipping insertion in model container [2020-09-25 13:22:15,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:22:15" (3/3) ... [2020-09-25 13:22:15,785 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_15-2.c [2020-09-25 13:22:15,795 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:22:15,805 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:22:15,828 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:22:15,859 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:22:15,859 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:22:15,860 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:22:15,860 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:22:15,860 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:22:15,860 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:22:15,860 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:22:15,861 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:22:15,882 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-09-25 13:22:15,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 13:22:15,890 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:15,891 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:15,891 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:15,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:15,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1756383024, now seen corresponding path program 1 times [2020-09-25 13:22:15,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:15,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922814781] [2020-09-25 13:22:15,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:16,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:16,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:22:16,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:16,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 13:22:16,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:16,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 13:22:16,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:16,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 13:22:16,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:16,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:16,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:16,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:16,320 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:16,320 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:22:16,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:16,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:16,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:16,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:16,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:16,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:16,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:16,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:16,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:16,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:16,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:16,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 13:22:16,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:16,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:22:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:22:16,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:16,402 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 13:22:16,404 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922814781] [2020-09-25 13:22:16,408 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:22:16,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:22:16,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703216499] [2020-09-25 13:22:16,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:22:16,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:16,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:22:16,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:22:16,441 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2020-09-25 13:22:16,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:16,526 INFO L93 Difference]: Finished difference Result 44 states and 50 transitions. [2020-09-25 13:22:16,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:22:16,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 13:22:16,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:16,542 INFO L225 Difference]: With dead ends: 44 [2020-09-25 13:22:16,542 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 13:22:16,547 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 13:22:16,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 13:22:16,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 13:22:16,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 13:22:16,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 13:22:16,601 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 16 [2020-09-25 13:22:16,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:16,602 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 13:22:16,602 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:22:16,602 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 13:22:16,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 13:22:16,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:16,605 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:16,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:22:16,606 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:16,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:16,606 INFO L82 PathProgramCache]: Analyzing trace with hash -389703589, now seen corresponding path program 1 times [2020-09-25 13:22:16,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:16,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1003865600] [2020-09-25 13:22:16,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:16,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:16,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:16,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 13:22:16,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:16,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 13:22:16,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:16,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:16,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:16,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:16,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:16,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:16,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:16,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:16,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:16,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:16,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:22:16,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:16,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:16,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:16,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:16,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:16,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:16,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:16,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:16,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:16,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:16,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:16,918 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:16,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 13:22:16,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:16,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:16,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:16,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:16,954 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 13:22:16,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1003865600] [2020-09-25 13:22:16,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:22:16,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:22:16,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022310377] [2020-09-25 13:22:16,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:22:16,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:16,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:22:16,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:22:16,959 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 5 states. [2020-09-25 13:22:17,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:17,030 INFO L93 Difference]: Finished difference Result 36 states and 41 transitions. [2020-09-25 13:22:17,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:22:17,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 13:22:17,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:17,032 INFO L225 Difference]: With dead ends: 36 [2020-09-25 13:22:17,033 INFO L226 Difference]: Without dead ends: 30 [2020-09-25 13:22:17,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 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 13:22:17,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-25 13:22:17,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-09-25 13:22:17,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 13:22:17,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2020-09-25 13:22:17,042 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 17 [2020-09-25 13:22:17,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:17,042 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2020-09-25 13:22:17,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:22:17,043 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2020-09-25 13:22:17,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 13:22:17,044 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:17,045 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:17,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:22:17,045 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:17,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:17,046 INFO L82 PathProgramCache]: Analyzing trace with hash 50309368, now seen corresponding path program 1 times [2020-09-25 13:22:17,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:17,047 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [469463311] [2020-09-25 13:22:17,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:17,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:17,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:17,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:17,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:17,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:18,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:18,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 13:22:18,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:22:18,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1737 [2020-09-25 13:22:18,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:18,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:18,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:18,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:18,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:22:18,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:22:18,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:18,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:18,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:18,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:18,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:18,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:18,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:22:18,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:18,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:18,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:18,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:18,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:22:18,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:18,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:18,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:18,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:18,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:19,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:19,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:19,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:22:19,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 200 [2020-09-25 13:22:19,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:19,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:19,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:19,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:22:19,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:19,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:19,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:19,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:19,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:19,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:19,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:19,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 13:22:19,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:19,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:19,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:19,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:19,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:19,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:19,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:19,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:19,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:19,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:19,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:19,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:19,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:22:19,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:19,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:19,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:19,131 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:19,155 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-09-25 13:22:19,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [469463311] [2020-09-25 13:22:19,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:19,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 13:22:19,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523353158] [2020-09-25 13:22:19,158 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:22:19,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:19,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:22:19,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:22:19,164 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand 6 states. [2020-09-25 13:22:19,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:19,263 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-09-25 13:22:19,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:22:19,263 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-09-25 13:22:19,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:19,266 INFO L225 Difference]: With dead ends: 44 [2020-09-25 13:22:19,266 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 13:22:19,267 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:22:19,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 13:22:19,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 36. [2020-09-25 13:22:19,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-09-25 13:22:19,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 44 transitions. [2020-09-25 13:22:19,277 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 44 transitions. Word has length 33 [2020-09-25 13:22:19,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:19,278 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 44 transitions. [2020-09-25 13:22:19,278 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:22:19,278 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 44 transitions. [2020-09-25 13:22:19,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 13:22:19,280 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:19,280 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:19,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:22:19,281 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:19,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:19,281 INFO L82 PathProgramCache]: Analyzing trace with hash 765810174, now seen corresponding path program 1 times [2020-09-25 13:22:19,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:19,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1079927020] [2020-09-25 13:22:19,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:19,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:19,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:19,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:19,550 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:19,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:20,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:20,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 13:22:20,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:22:20,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1698 [2020-09-25 13:22:20,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:20,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:22:20,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:22:20,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:20,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:20,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:20,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:21,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:21,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:21,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:22:21,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:21,001 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:21,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:21,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:21,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:21,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:21,015 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:21,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 13:22:21,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:21,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 13:22:21,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:21,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:21,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:21,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:22:21,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:22:21,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:21,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:21,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:21,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:21,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:21,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:21,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:22:21,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:21,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:21,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:21,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:21,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:22:21,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:21,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:22:21,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:21,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:21,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:21,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:21,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-09-25 13:22:21,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:21,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:21,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:21,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:21,240 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-25 13:22:21,240 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1079927020] [2020-09-25 13:22:21,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:21,241 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 13:22:21,241 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [309365708] [2020-09-25 13:22:21,242 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:22:21,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:21,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:22:21,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:22:21,243 INFO L87 Difference]: Start difference. First operand 36 states and 44 transitions. Second operand 7 states. [2020-09-25 13:22:21,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:21,370 INFO L93 Difference]: Finished difference Result 76 states and 109 transitions. [2020-09-25 13:22:21,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:22:21,371 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 13:22:21,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:21,373 INFO L225 Difference]: With dead ends: 76 [2020-09-25 13:22:21,373 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 13:22:21,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:22:21,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 13:22:21,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-09-25 13:22:21,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 13:22:21,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-09-25 13:22:21,386 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 35 [2020-09-25 13:22:21,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:21,387 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-09-25 13:22:21,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:22:21,387 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-09-25 13:22:21,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 13:22:21,390 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:21,390 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:21,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:22:21,391 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:21,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:21,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1693530075, now seen corresponding path program 1 times [2020-09-25 13:22:21,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:21,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1314374857] [2020-09-25 13:22:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:21,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:21,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:24,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:26,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 13:22:26,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:22:26,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 13:22:26,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:26,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:26,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:26,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 13:22:26,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:26,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:26,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:26,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:26,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:26,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:22:26,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:26,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:26,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:26,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:26,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:26,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:26,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:28,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:29,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 13:22:29,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:22:29,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3279 [2020-09-25 13:22:29,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:29,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:29,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:29,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:29,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 13:22:29,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:29,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:29,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:29,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:29,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:29,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:29,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-09-25 13:22:29,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:29,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:29,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:29,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:22:29,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:29,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:29,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:29,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:29,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:29,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:22:29,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:29,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:29,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:29,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:29,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:29,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 13:22:29,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:29,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:29,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:29,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:29,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:22:29,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:29,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:29,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:29,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:29,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 13:22:29,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 13:22:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:29,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:29,918 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:29,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:29,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 13:22:29,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:29,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:29,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:29,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:22:29,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:29,945 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-25 13:22:29,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1314374857] [2020-09-25 13:22:29,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:29,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 13:22:29,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49251253] [2020-09-25 13:22:29,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 13:22:29,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:29,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 13:22:29,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:22:29,950 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 6 states. [2020-09-25 13:22:30,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:30,070 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2020-09-25 13:22:30,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:22:30,074 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-09-25 13:22:30,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:30,078 INFO L225 Difference]: With dead ends: 52 [2020-09-25 13:22:30,079 INFO L226 Difference]: Without dead ends: 46 [2020-09-25 13:22:30,080 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:22:30,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-25 13:22:30,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 40. [2020-09-25 13:22:30,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-09-25 13:22:30,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2020-09-25 13:22:30,106 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 51 [2020-09-25 13:22:30,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:30,106 INFO L479 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2020-09-25 13:22:30,106 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 13:22:30,107 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2020-09-25 13:22:30,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-09-25 13:22:30,113 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:30,113 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:30,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:22:30,116 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:30,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:30,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1086233509, now seen corresponding path program 2 times [2020-09-25 13:22:30,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:30,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857818240] [2020-09-25 13:22:30,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:30,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:30,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:32,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:32,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:32,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:35,153 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:35,153 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-09-25 13:22:35,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 13:22:35,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 13:22:35,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:35,154 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:35,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:22:35,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:35,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 13:22:35,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:35,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:35,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:35,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:35,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:35,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:35,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:35,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:22:35,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:35,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:35,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:35,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:35,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:35,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:35,208 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:35,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:35,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:35,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:37,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:37,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:37,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:37,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:38,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:40,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-09-25 13:22:40,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 13:22:40,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 13:22:40,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:40,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:40,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:22:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:22:40,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 13:22:40,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:40,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:40,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:40,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:40,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:40,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:40,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 13:22:40,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:40,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:40,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:40,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:40,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:22:40,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:40,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:40,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:40,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:40,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:40,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:40,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:22:40,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:40,302 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:40,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:40,303 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:40,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:40,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:40,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:40,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:40,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:40,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:22:40,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:40,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:40,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:40,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:40,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 13:22:40,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:40,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:41,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:41,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 13:22:41,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:22:41,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1548 [2020-09-25 13:22:41,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:41,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:41,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:41,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 13:22:41,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:41,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:41,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:41,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:41,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:42,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:42,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:42,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:42,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 85 [2020-09-25 13:22:42,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:42,024 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:42,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:42,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:42,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:22:42,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:42,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:42,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:42,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:42,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:42,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:42,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:42,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:42,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:42,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:42,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:42,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:42,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:42,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:42,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:42,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:42,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:42,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:42,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:42,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:42,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:42,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:42,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:42,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:42,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 13:22:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:42,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:42,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:42,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:42,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:42,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:22:42,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:42,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:42,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:42,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:42,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:42,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:42,074 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 54 proven. 69 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-09-25 13:22:42,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857818240] [2020-09-25 13:22:42,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:42,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 13:22:42,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527089440] [2020-09-25 13:22:42,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 13:22:42,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:42,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 13:22:42,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:22:42,077 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 9 states. [2020-09-25 13:22:42,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:42,262 INFO L93 Difference]: Finished difference Result 92 states and 126 transitions. [2020-09-25 13:22:42,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 13:22:42,263 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2020-09-25 13:22:42,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:42,264 INFO L225 Difference]: With dead ends: 92 [2020-09-25 13:22:42,265 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 13:22:42,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2020-09-25 13:22:42,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 13:22:42,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 50. [2020-09-25 13:22:42,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 13:22:42,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2020-09-25 13:22:42,276 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 85 [2020-09-25 13:22:42,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:42,276 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2020-09-25 13:22:42,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 13:22:42,276 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2020-09-25 13:22:42,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-09-25 13:22:42,278 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:42,278 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:42,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:22:42,279 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:42,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:42,279 INFO L82 PathProgramCache]: Analyzing trace with hash 501566307, now seen corresponding path program 3 times [2020-09-25 13:22:42,279 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:42,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1906518449] [2020-09-25 13:22:42,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:42,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:42,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:42,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:42,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:42,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:42,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:42,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:42,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:44,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:44,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:47,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-09-25 13:22:47,308 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 13:22:47,308 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-09-25 13:22:47,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:47,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:22:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:22:47,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 13:22:47,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:47,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:47,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:47,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:47,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:47,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:22:47,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:47,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:47,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:47,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:47,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:47,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:47,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:47,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,783 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:47,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:48,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:52,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-25 13:22:52,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 13:22:52,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-09-25 13:22:52,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:52,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:52,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:22:52,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:22:52,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 13:22:52,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:52,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:52,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:52,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:52,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 13:22:52,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:52,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 148 [2020-09-25 13:22:52,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:52,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:52,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:52,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:52,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 13:22:52,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:52,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:52,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:52,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:52,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:52,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 13:22:52,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:52,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:52,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:52,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:52,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:22:52,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:52,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:22:52,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:52,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:52,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:52,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:52,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:22:52,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:52,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:52,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:52,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:52,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:52,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 13:22:52,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:52,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:52,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:54,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:54,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 13:22:54,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 13:22:54,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1993 [2020-09-25 13:22:54,613 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:54,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:54,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 13:22:54,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:54,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:54,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:54,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:54,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 13:22:54,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:54,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 13:22:54,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:54,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:54,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:54,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:54,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:22:54,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:54,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:54,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:54,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:54,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:54,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:54,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:54,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:22:54,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:54,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:54,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:54,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:54,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:54,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:54,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:22:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:54,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:54,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:54,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:54,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:54,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:54,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:54,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:54,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:54,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:54,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:54,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 13:22:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:54,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:54,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:54,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:54,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:54,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 13:22:54,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:54,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:54,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:54,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:54,765 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 57 proven. 74 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-09-25 13:22:54,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1906518449] [2020-09-25 13:22:54,765 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:54,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:22:54,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590511538] [2020-09-25 13:22:54,766 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:22:54,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:54,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:22:54,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:22:54,767 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand 10 states. [2020-09-25 13:22:55,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:55,092 INFO L93 Difference]: Finished difference Result 117 states and 157 transitions. [2020-09-25 13:22:55,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 13:22:55,092 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 87 [2020-09-25 13:22:55,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:55,095 INFO L225 Difference]: With dead ends: 117 [2020-09-25 13:22:55,095 INFO L226 Difference]: Without dead ends: 71 [2020-09-25 13:22:55,096 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-09-25 13:22:55,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-09-25 13:22:55,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 63. [2020-09-25 13:22:55,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 13:22:55,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 77 transitions. [2020-09-25 13:22:55,108 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 77 transitions. Word has length 87 [2020-09-25 13:22:55,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:55,108 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 77 transitions. [2020-09-25 13:22:55,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:22:55,108 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 77 transitions. [2020-09-25 13:22:55,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-09-25 13:22:55,110 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:55,110 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:55,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:22:55,111 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:55,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:55,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1607002557, now seen corresponding path program 4 times [2020-09-25 13:22:55,111 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:55,112 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1095841620] [2020-09-25 13:22:55,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:55,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:55,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:55,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:55,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:55,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:55,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:55,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:55,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:57,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:57,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:57,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:57,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:57,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:57,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:57,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:57,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:57,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:58,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:58,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:58,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:58,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:00,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:00,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-09-25 13:23:00,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-09-25 13:23:00,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 13:23:00,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:00,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:00,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 13:23:00,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:23:00,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 13:23:00,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:23:00,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:23:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:00,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:00,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:00,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:23:00,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:00,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:23:00,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:00,146 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:00,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:23:00,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:00,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:23:00,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:00,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:23:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:00,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:00,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:00,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:00,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:00,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:00,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:00,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:00,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:02,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:05,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-25 13:23:05,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-09-25 13:23:05,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-09-25 13:23:05,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:05,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 13:23:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:23:05,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-25 13:23:05,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:05,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:05,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:05,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:07,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-09-25 13:23:07,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:23:07,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2077 [2020-09-25 13:23:07,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:07,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:23:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:07,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 13:23:07,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:07,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:07,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:07,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:07,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:23:07,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:23:07,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 13:23:07,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:07,344 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:07,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:23:07,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:07,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:23:07,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:07,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:07,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:07,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:07,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:23:07,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:07,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:23:07,353 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:07,353 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:23:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:07,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:23:07,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:07,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:23:07,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:07,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:07,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:23:07,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:07,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:23:07,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:07,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:23:07,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:07,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:23:07,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:07,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 13:23:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:07,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:07,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:23:07,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:07,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 13:23:07,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:07,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:07,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:23:07,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:07,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:23:07,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:07,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-25 13:23:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:07,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:08,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking...