/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=0.1 --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_2calls_20-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 10:00:24,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 10:00:24,843 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 10:00:24,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 10:00:24,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 10:00:24,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 10:00:24,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 10:00:24,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 10:00:24,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 10:00:24,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 10:00:24,884 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 10:00:24,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 10:00:24,886 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 10:00:24,887 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 10:00:24,888 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 10:00:24,889 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 10:00:24,890 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 10:00:24,891 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 10:00:24,893 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 10:00:24,896 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 10:00:24,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 10:00:24,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 10:00:24,900 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 10:00:24,901 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 10:00:24,904 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 10:00:24,904 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 10:00:24,905 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 10:00:24,906 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 10:00:24,906 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 10:00:24,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 10:00:24,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 10:00:24,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 10:00:24,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 10:00:24,910 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 10:00:24,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 10:00:24,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 10:00:24,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 10:00:24,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 10:00:24,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 10:00:24,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 10:00:24,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 10:00:24,916 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 10:00:24,943 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 10:00:24,945 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 10:00:24,946 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 10:00:24,947 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 10:00:24,947 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 10:00:24,947 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 10:00:24,948 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 10:00:24,948 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 10:00:24,948 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 10:00:24,948 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 10:00:24,948 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 10:00:24,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 10:00:24,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 10:00:24,949 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 10:00:24,949 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 10:00:24,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 10:00:24,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 10:00:24,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 10:00:24,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 10:00:24,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 10:00:24,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 10:00:24,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 10:00:24,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 10:00:24,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 10:00:24,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 10:00:24,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 10:00:24,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 10:00:24,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 10:00:24,953 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 10:00:24,954 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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;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=0.1;log-additional-information=true; [2020-09-25 10:00:25,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 10:00:25,432 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 10:00:25,436 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 10:00:25,438 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 10:00:25,438 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 10:00:25,439 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_20-2.c [2020-09-25 10:00:25,523 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05a86ca99/d48303cadac9499e85702610edac8254/FLAG72285a4f3 [2020-09-25 10:00:26,118 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 10:00:26,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_20-2.c [2020-09-25 10:00:26,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05a86ca99/d48303cadac9499e85702610edac8254/FLAG72285a4f3 [2020-09-25 10:00:26,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/05a86ca99/d48303cadac9499e85702610edac8254 [2020-09-25 10:00:26,481 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 10:00:26,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 10:00:26,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 10:00:26,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 10:00:26,493 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 10:00:26,494 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:00:26" (1/1) ... [2020-09-25 10:00:26,498 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a32a894 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:26, skipping insertion in model container [2020-09-25 10:00:26,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 10:00:26" (1/1) ... [2020-09-25 10:00:26,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 10:00:26,531 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 10:00:26,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:00:26,737 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 10:00:26,754 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 10:00:26,769 INFO L208 MainTranslator]: Completed translation [2020-09-25 10:00:26,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:26 WrapperNode [2020-09-25 10:00:26,770 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 10:00:26,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 10:00:26,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 10:00:26,771 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 10:00:26,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:26" (1/1) ... [2020-09-25 10:00:26,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:26" (1/1) ... [2020-09-25 10:00:26,876 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:26" (1/1) ... [2020-09-25 10:00:26,877 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:26" (1/1) ... [2020-09-25 10:00:26,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:26" (1/1) ... [2020-09-25 10:00:26,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:26" (1/1) ... [2020-09-25 10:00:26,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:26" (1/1) ... [2020-09-25 10:00:26,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 10:00:26,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 10:00:26,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 10:00:26,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 10:00:26,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:26" (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 10:00:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 10:00:26,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 10:00:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 10:00:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 10:00:26,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 10:00:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 10:00:26,965 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 10:00:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 10:00:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 10:00:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 10:00:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 10:00:26,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 10:00:27,217 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 10:00:27,217 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 10:00:27,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:00:27 BoogieIcfgContainer [2020-09-25 10:00:27,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 10:00:27,225 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 10:00:27,226 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 10:00:27,231 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 10:00:27,231 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 10:00:26" (1/3) ... [2020-09-25 10:00:27,233 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5741de91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:00:27, skipping insertion in model container [2020-09-25 10:00:27,233 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 10:00:26" (2/3) ... [2020-09-25 10:00:27,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5741de91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 10:00:27, skipping insertion in model container [2020-09-25 10:00:27,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 10:00:27" (3/3) ... [2020-09-25 10:00:27,237 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_20-2.c [2020-09-25 10:00:27,253 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 10:00:27,264 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 10:00:27,288 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 10:00:27,321 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 10:00:27,322 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 10:00:27,322 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 10:00:27,322 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 10:00:27,322 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 10:00:27,323 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 10:00:27,323 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 10:00:27,323 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 10:00:27,348 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 10:00:27,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 10:00:27,355 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:27,356 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:27,357 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:27,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:27,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 10:00:27,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:27,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218406155] [2020-09-25 10:00:27,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:27,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:27,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:27,545 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 10:00:27,545 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:27,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-09-25 10:00:27,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:27,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:00:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 10:00:27,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:00:27,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:27,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:27,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:27,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:27,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:27,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:27,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:27,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:27,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:27,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:27,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:27,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:27,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:27,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:27,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-25 10:00:27,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:27,667 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:27,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:00:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:27,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:27,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:27,701 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 10:00:27,702 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218406155] [2020-09-25 10:00:27,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:00:27,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:00:27,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836616118] [2020-09-25 10:00:27,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:00:27,714 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:27,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:00:27,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:00:27,735 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 10:00:27,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:27,859 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 10:00:27,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:00:27,861 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 10:00:27,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:27,883 INFO L225 Difference]: With dead ends: 58 [2020-09-25 10:00:27,884 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 10:00:27,890 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 10:00:27,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 10:00:27,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 10:00:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 10:00:27,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 10:00:27,944 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 10:00:27,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:27,945 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 10:00:27,945 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:00:27,945 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 10:00:27,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 10:00:27,948 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:27,948 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 10:00:27,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 10:00:27,948 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:27,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:27,949 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 10:00:27,949 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:27,950 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1901691847] [2020-09-25 10:00:27,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:27,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:27,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:28,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 10:00:28,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:28,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 10:00:28,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:28,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:28,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:00:28,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:28,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:28,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:28,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:28,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:28,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:28,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:28,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:28,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:28,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:28,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:28,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:28,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:28,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:28,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:28,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:28,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-09-25 10:00:28,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:28,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:28,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 10:00:28,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:28,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:28,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:28,209 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 10:00:28,209 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1901691847] [2020-09-25 10:00:28,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:00:28,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 10:00:28,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712194948] [2020-09-25 10:00:28,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 10:00:28,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:28,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 10:00:28,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 10:00:28,213 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 10:00:28,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:28,298 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 10:00:28,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 10:00:28,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 10:00:28,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:28,300 INFO L225 Difference]: With dead ends: 50 [2020-09-25 10:00:28,301 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 10:00:28,302 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 10:00:28,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 10:00:28,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 10:00:28,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 10:00:28,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 10:00:28,312 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 10:00:28,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:28,312 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 10:00:28,312 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 10:00:28,312 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 10:00:28,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 10:00:28,314 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:28,315 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:28,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 10:00:28,315 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:28,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:28,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 10:00:28,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:28,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [612816640] [2020-09-25 10:00:28,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:28,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:28,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 10:00:28,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:00:28,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 554 [2020-09-25 10:00:28,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:28,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:28,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:28,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:28,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 10:00:28,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:00:28,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:28,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:28,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:28,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:00:28,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:28,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:28,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:28,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:28,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:28,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:28,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:28,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:29,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:29,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:00:29,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 324 [2020-09-25 10:00:29,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:29,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:29,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:29,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:29,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:29,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:29,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:29,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:29,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:29,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:00:29,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:29,308 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:29,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:29,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:29,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:29,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:29,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:29,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:29,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 10:00:29,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:29,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:29,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:29,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:29,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:29,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 10:00:29,352 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [612816640] [2020-09-25 10:00:29,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:29,353 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 10:00:29,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144086164] [2020-09-25 10:00:29,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:00:29,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:29,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:00:29,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:00:29,355 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 10:00:29,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:29,521 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2020-09-25 10:00:29,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 10:00:29,522 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 10:00:29,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:29,525 INFO L225 Difference]: With dead ends: 69 [2020-09-25 10:00:29,525 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 10:00:29,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:00:29,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 10:00:29,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 61. [2020-09-25 10:00:29,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 10:00:29,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2020-09-25 10:00:29,540 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 33 [2020-09-25 10:00:29,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:29,541 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2020-09-25 10:00:29,541 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:00:29,541 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2020-09-25 10:00:29,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 10:00:29,544 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:29,544 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:29,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 10:00:29,545 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:29,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:29,546 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 1 times [2020-09-25 10:00:29,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:29,546 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [963883567] [2020-09-25 10:00:29,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:29,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:29,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 10:00:29,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:29,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 389 [2020-09-25 10:00:29,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:29,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:29,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:29,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:29,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-25 10:00:29,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:00:29,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:29,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:29,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:29,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:29,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:29,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:29,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:29,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:29,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:29,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:29,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:29,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 10:00:29,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:29,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:30,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:00:30,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:30,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 10:00:30,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:30,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:30,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:30,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:30,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:30,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:30,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:30,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:30,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:30,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:00:30,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:30,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:30,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:30,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:30,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:30,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:30,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:30,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:30,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:30,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:00:30,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:30,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:30,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:30,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:30,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:30,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:30,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 10:00:30,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [963883567] [2020-09-25 10:00:30,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 10:00:30,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 10:00:30,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635504005] [2020-09-25 10:00:30,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:00:30,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:30,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:00:30,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:00:30,385 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand 7 states. [2020-09-25 10:00:30,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:30,582 INFO L93 Difference]: Finished difference Result 73 states and 91 transitions. [2020-09-25 10:00:30,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 10:00:30,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-09-25 10:00:30,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:30,588 INFO L225 Difference]: With dead ends: 73 [2020-09-25 10:00:30,588 INFO L226 Difference]: Without dead ends: 67 [2020-09-25 10:00:30,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:00:30,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-09-25 10:00:30,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 61. [2020-09-25 10:00:30,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-09-25 10:00:30,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 76 transitions. [2020-09-25 10:00:30,613 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 76 transitions. Word has length 34 [2020-09-25 10:00:30,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:30,614 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 76 transitions. [2020-09-25 10:00:30,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:00:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 76 transitions. [2020-09-25 10:00:30,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 10:00:30,621 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:30,621 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:30,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 10:00:30,622 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:30,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:30,622 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 10:00:30,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:30,623 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746407291] [2020-09-25 10:00:30,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:30,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:30,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:30,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:31,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 10:00:31,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:00:31,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 608 [2020-09-25 10:00:31,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:31,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:31,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:31,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:31,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-09-25 10:00:31,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:31,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:31,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:31,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:31,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:31,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:31,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:31,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:31,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:31,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:31,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:31,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:31,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:31,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:31,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 10:00:31,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:00:31,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-09-25 10:00:31,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:31,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:31,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:31,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:31,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:00:31,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:31,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:31,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:31,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:31,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:31,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:00:31,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:31,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:31,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:00:31,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:31,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:00:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:31,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:31,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:31,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:31,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:31,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 10:00:31,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:31,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:31,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:31,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:31,830 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 10:00:31,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746407291] [2020-09-25 10:00:31,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:31,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 10:00:31,832 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061643498] [2020-09-25 10:00:31,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:00:31,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:31,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:00:31,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:00:31,833 INFO L87 Difference]: Start difference. First operand 61 states and 76 transitions. Second operand 7 states. [2020-09-25 10:00:31,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:31,975 INFO L93 Difference]: Finished difference Result 134 states and 187 transitions. [2020-09-25 10:00:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:00:31,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 10:00:31,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:31,978 INFO L225 Difference]: With dead ends: 134 [2020-09-25 10:00:31,978 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 10:00:31,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:00:31,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 10:00:31,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2020-09-25 10:00:31,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-09-25 10:00:31,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2020-09-25 10:00:31,993 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 35 [2020-09-25 10:00:31,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:31,993 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2020-09-25 10:00:31,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:00:31,993 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2020-09-25 10:00:31,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 10:00:31,996 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:31,997 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:31,997 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 10:00:31,997 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:31,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:31,998 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 10:00:31,998 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:31,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [95207962] [2020-09-25 10:00:31,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:32,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:32,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:32,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:37,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 10:00:37,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:00:37,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:00:37,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:37,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:37,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:37,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:37,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 10:00:37,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 10:00:37,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:37,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:37,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:37,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:37,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 10:00:37,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:37,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:37,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:37,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:37,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:37,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:37,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:37,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:38,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:41,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:41,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 10:00:41,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 10:00:41,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4013 [2020-09-25 10:00:41,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:41,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:41,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:00:41,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:41,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 10:00:41,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:41,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:41,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:41,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:41,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:41,229 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:41,229 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:41,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:41,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-09-25 10:00:41,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:41,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:41,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:41,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:41,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:41,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:41,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:41,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:41,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:41,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:41,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 10:00:41,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:41,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:41,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:41,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:41,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:41,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:41,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:41,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:41,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:41,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:41,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:00:41,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:41,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:41,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:41,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:41,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:41,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:41,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:41,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:41,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:41,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:00:41,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:41,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 10:00:41,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:41,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:41,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:41,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:00:41,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:41,328 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 10:00:41,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [95207962] [2020-09-25 10:00:41,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:41,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 10:00:41,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602962107] [2020-09-25 10:00:41,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 10:00:41,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:41,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 10:00:41,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 10:00:41,334 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand 7 states. [2020-09-25 10:00:41,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:41,473 INFO L93 Difference]: Finished difference Result 85 states and 109 transitions. [2020-09-25 10:00:41,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 10:00:41,474 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 10:00:41,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:41,476 INFO L225 Difference]: With dead ends: 85 [2020-09-25 10:00:41,476 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 10:00:41,477 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 10:00:41,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 10:00:41,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 67. [2020-09-25 10:00:41,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-09-25 10:00:41,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 85 transitions. [2020-09-25 10:00:41,489 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 85 transitions. Word has length 51 [2020-09-25 10:00:41,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:41,489 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 85 transitions. [2020-09-25 10:00:41,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 10:00:41,490 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 85 transitions. [2020-09-25 10:00:41,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 10:00:41,492 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:41,492 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:41,493 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 10:00:41,493 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:41,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:41,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1879014210, now seen corresponding path program 1 times [2020-09-25 10:00:41,494 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:41,494 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956422092] [2020-09-25 10:00:41,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:41,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:41,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:41,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:41,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:41,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:41,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:41,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:42,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:42,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:42,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:42,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:46,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:46,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 10:00:46,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 10:00:46,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 10:00:46,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:46,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:46,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:00:46,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:46,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 10:00:46,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:46,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:46,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:46,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:46,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:46,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:46,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:46,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:46,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:46,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:46,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:46,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:46,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:46,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:46,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:46,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:46,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:46,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:46,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:46,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:47,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:50,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:51,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:51,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:51,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:51,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 10:00:51,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 12 [2020-09-25 10:00:51,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 10:00:51,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:51,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:00:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:00:51,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 10:00:51,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:51,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:51,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:51,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:51,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:51,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:51,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:51,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:51,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-09-25 10:00:51,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:51,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:51,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 10:00:51,656 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:51,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:51,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:51,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:51,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:51,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:51,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:51,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:51,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:51,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:51,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:51,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:51,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:51,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:51,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:51,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:51,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:51,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:51,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:51,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 10:00:51,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:51,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:51,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:51,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:51,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:51,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:51,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 10:00:51,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:51,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:51,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:51,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:51,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 10:00:51,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:00:51,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-09-25 10:00:51,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:51,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:51,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 10:00:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:00:51,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:51,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:00:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:51,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:51,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:51,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:51,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:51,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:00:51,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:51,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:51,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:00:51,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:51,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:00:51,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:51,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 10:00:51,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:51,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:51,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:51,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:00:51,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:51,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:00:51,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:51,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:00:51,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:51,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:00:51,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:51,858 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 10:00:51,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956422092] [2020-09-25 10:00:51,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:00:51,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 10:00:51,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369632706] [2020-09-25 10:00:51,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 10:00:51,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:00:51,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 10:00:51,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 10:00:51,862 INFO L87 Difference]: Start difference. First operand 67 states and 85 transitions. Second operand 8 states. [2020-09-25 10:00:52,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:00:52,102 INFO L93 Difference]: Finished difference Result 120 states and 169 transitions. [2020-09-25 10:00:52,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 10:00:52,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-09-25 10:00:52,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:00:52,107 INFO L225 Difference]: With dead ends: 120 [2020-09-25 10:00:52,107 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 10:00:52,108 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:00:52,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 10:00:52,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 106. [2020-09-25 10:00:52,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-25 10:00:52,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 151 transitions. [2020-09-25 10:00:52,144 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 151 transitions. Word has length 67 [2020-09-25 10:00:52,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:00:52,144 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 151 transitions. [2020-09-25 10:00:52,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 10:00:52,144 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 151 transitions. [2020-09-25 10:00:52,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-25 10:00:52,147 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:00:52,147 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:00:52,149 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 10:00:52,149 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:00:52,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:00:52,149 INFO L82 PathProgramCache]: Analyzing trace with hash -387134248, now seen corresponding path program 1 times [2020-09-25 10:00:52,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:00:52,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1509050427] [2020-09-25 10:00:52,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:00:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:52,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:52,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:52,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:52,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:52,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:52,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:52,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:53,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:54,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:54,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:56,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:56,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:56,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:57,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:57,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-25 10:00:57,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 10:00:57,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 10:00:57,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:57,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:57,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:00:57,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:00:57,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-25 10:00:57,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:00:57,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:00:57,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:57,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:57,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:00:57,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:00:57,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:00:57,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:00:57,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:00:57,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:00:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:00:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:00:57,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:00:57,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:00:57,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:00:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:00:57,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:57,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:57,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:57,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:57,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:57,315 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:00:57,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:01,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:01,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:02,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:02,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 76 [2020-09-25 10:01:02,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 10:01:02,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 10:01:02,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:02,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:02,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:01:02,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:01:02,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 10:01:02,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:02,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:02,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:02,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:02,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:02,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:02,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:01:02,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:01:02,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-09-25 10:01:02,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:02,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:02,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:01:02,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:02,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:01:02,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:02,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:02,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:02,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:02,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:01:02,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:02,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 10:01:02,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:02,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:01:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:02,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:02,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:01:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:02,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:02,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:02,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:02,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:02,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:01:02,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:02,447 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:02,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:02,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-25 10:01:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:02,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:02,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:02,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:02,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:02,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 10:01:02,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 10:01:02,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-09-25 10:01:02,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:02,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:02,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:02,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:02,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 10:01:02,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:02,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:02,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:02,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:02,789 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:01:02,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:02,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 10:01:02,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:02,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:02,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:01:02,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:02,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:02,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:02,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:01:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:02,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:02,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:02,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 10:01:02,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:02,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 10:01:02,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:02,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:02,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:01:02,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:02,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 10:01:02,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:02,823 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 12 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-09-25 10:01:02,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1509050427] [2020-09-25 10:01:02,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:02,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 10:01:02,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729103048] [2020-09-25 10:01:02,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:01:02,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:02,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:01:02,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:01:02,827 INFO L87 Difference]: Start difference. First operand 106 states and 151 transitions. Second operand 11 states. [2020-09-25 10:01:03,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:03,216 INFO L93 Difference]: Finished difference Result 208 states and 329 transitions. [2020-09-25 10:01:03,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:01:03,217 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 69 [2020-09-25 10:01:03,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:03,218 INFO L225 Difference]: With dead ends: 208 [2020-09-25 10:01:03,219 INFO L226 Difference]: Without dead ends: 79 [2020-09-25 10:01:03,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2020-09-25 10:01:03,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-09-25 10:01:03,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 73. [2020-09-25 10:01:03,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 10:01:03,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2020-09-25 10:01:03,245 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 89 transitions. Word has length 69 [2020-09-25 10:01:03,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:03,248 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 89 transitions. [2020-09-25 10:01:03,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:01:03,249 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2020-09-25 10:01:03,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 10:01:03,250 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:03,250 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:03,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 10:01:03,250 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:03,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:03,251 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 10:01:03,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:03,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [380883634] [2020-09-25 10:01:03,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:03,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:03,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:03,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:04,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:05,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:05,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:05,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:05,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:05,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:08,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 10:01:08,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 10:01:08,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 10:01:08,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:08,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:08,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 10:01:08,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:08,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 10:01:08,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:08,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:08,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:08,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:08,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:08,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:01:08,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:08,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:08,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:08,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:08,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:08,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:08,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:08,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:08,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:08,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:09,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:10,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:10,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:13,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 10:01:13,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 10:01:13,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 10:01:13,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:13,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:01:13,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 10:01:13,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-09-25 10:01:13,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:13,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:13,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:13,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 10:01:13,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:01:13,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 307 [2020-09-25 10:01:13,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:13,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:13,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:01:13,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:13,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 10:01:13,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:13,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:13,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:13,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:13,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:01:13,653 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:13,653 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 10:01:13,653 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:13,653 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:13,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:01:13,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:13,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:01:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:13,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:13,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:01:13,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:13,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 10:01:13,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:13,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:01:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:13,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:13,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:13,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 10:01:13,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:13,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,823 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:13,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 10:01:13,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 10:01:13,824 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-09-25 10:01:13,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:13,824 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:13,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 10:01:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 10:01:13,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 10:01:13,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:13,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 10:01:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:13,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:13,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:01:13,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:13,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 10:01:13,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:13,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:13,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 10:01:13,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:13,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 10:01:13,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 10:01:13,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 10:01:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:13,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:13,882 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:13,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 10:01:13,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 10:01:13,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 10:01:13,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:13,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 10:01:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:13,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 10:01:13,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:13,922 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 22 proven. 23 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-09-25 10:01:13,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [380883634] [2020-09-25 10:01:13,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 10:01:13,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 10:01:13,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097928855] [2020-09-25 10:01:13,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 10:01:13,924 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 10:01:13,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 10:01:13,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-09-25 10:01:13,925 INFO L87 Difference]: Start difference. First operand 73 states and 89 transitions. Second operand 11 states. [2020-09-25 10:01:14,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 10:01:14,258 INFO L93 Difference]: Finished difference Result 166 states and 220 transitions. [2020-09-25 10:01:14,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 10:01:14,259 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 71 [2020-09-25 10:01:14,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 10:01:14,261 INFO L225 Difference]: With dead ends: 166 [2020-09-25 10:01:14,261 INFO L226 Difference]: Without dead ends: 98 [2020-09-25 10:01:14,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2020-09-25 10:01:14,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-09-25 10:01:14,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 87. [2020-09-25 10:01:14,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-25 10:01:14,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 106 transitions. [2020-09-25 10:01:14,281 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 106 transitions. Word has length 71 [2020-09-25 10:01:14,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 10:01:14,281 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 106 transitions. [2020-09-25 10:01:14,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 10:01:14,282 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 106 transitions. [2020-09-25 10:01:14,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-09-25 10:01:14,285 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 10:01:14,285 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 10:01:14,285 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 10:01:14,285 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 10:01:14,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 10:01:14,286 INFO L82 PathProgramCache]: Analyzing trace with hash -1801853252, now seen corresponding path program 1 times [2020-09-25 10:01:14,286 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 10:01:14,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [6886310] [2020-09-25 10:01:14,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 10:01:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:14,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:14,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:15,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:15,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:15,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:15,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:19,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-09-25 10:01:19,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 10:01:19,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-09-25 10:01:19,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:19,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 10:01:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 10:01:19,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-25 10:01:19,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:19,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 10:01:19,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:19,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 10:01:19,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 10:01:19,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 10:01:19,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 10:01:19,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 10:01:19,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 10:01:19,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 10:01:19,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 10:01:19,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 10:01:19,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 10:01:19,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 10:01:19,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 10:01:19,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:19,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 10:01:20,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking...