/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Fibonacci04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 12:54:56,226 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 12:54:56,228 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 12:54:56,258 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 12:54:56,259 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 12:54:56,266 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 12:54:56,268 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 12:54:56,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 12:54:56,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 12:54:56,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 12:54:56,275 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 12:54:56,276 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 12:54:56,277 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 12:54:56,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 12:54:56,282 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 12:54:56,284 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 12:54:56,285 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 12:54:56,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 12:54:56,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 12:54:56,293 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 12:54:56,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 12:54:56,296 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 12:54:56,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 12:54:56,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 12:54:56,310 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 12:54:56,310 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 12:54:56,311 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 12:54:56,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 12:54:56,312 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 12:54:56,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 12:54:56,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 12:54:56,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 12:54:56,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 12:54:56,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 12:54:56,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 12:54:56,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 12:54:56,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 12:54:56,323 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 12:54:56,325 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 12:54:56,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 12:54:56,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 12:54:56,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-13 12:54:56,355 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 12:54:56,355 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 12:54:56,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 12:54:56,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 12:54:56,357 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 12:54:56,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 12:54:56,357 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 12:54:56,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 12:54:56,357 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 12:54:56,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 12:54:56,358 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 12:54:56,358 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 12:54:56,358 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 12:54:56,358 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 12:54:56,358 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 12:54:56,359 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 12:54:56,359 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 12:54:56,359 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 12:54:56,359 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 12:54:56,359 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 12:54:56,359 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 12:54:56,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:54:56,360 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 12:54:56,360 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 12:54:56,361 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 12:54:56,361 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 12:54:56,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 12:54:56,362 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 12:54:56,362 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 12:54:56,362 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 12:54:56,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 12:54:56,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 12:54:56,697 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 12:54:56,699 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 12:54:56,700 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 12:54:56,700 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Fibonacci04.c [2020-10-13 12:54:56,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe3a51027/1ff3d251cc9541dcbf5ed6239474f3a1/FLAG2faac8b0a [2020-10-13 12:54:57,216 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 12:54:57,217 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Fibonacci04.c [2020-10-13 12:54:57,223 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe3a51027/1ff3d251cc9541dcbf5ed6239474f3a1/FLAG2faac8b0a [2020-10-13 12:54:57,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe3a51027/1ff3d251cc9541dcbf5ed6239474f3a1 [2020-10-13 12:54:57,653 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 12:54:57,655 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 12:54:57,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 12:54:57,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 12:54:57,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 12:54:57,661 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:54:57" (1/1) ... [2020-10-13 12:54:57,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:57, skipping insertion in model container [2020-10-13 12:54:57,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:54:57" (1/1) ... [2020-10-13 12:54:57,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 12:54:57,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 12:54:57,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:54:57,850 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 12:54:57,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 12:54:57,881 INFO L208 MainTranslator]: Completed translation [2020-10-13 12:54:57,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:57 WrapperNode [2020-10-13 12:54:57,882 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 12:54:57,883 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 12:54:57,883 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 12:54:57,883 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 12:54:57,896 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:57" (1/1) ... [2020-10-13 12:54:57,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:57" (1/1) ... [2020-10-13 12:54:57,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:57" (1/1) ... [2020-10-13 12:54:57,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:57" (1/1) ... [2020-10-13 12:54:57,986 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:57" (1/1) ... [2020-10-13 12:54:57,989 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:57" (1/1) ... [2020-10-13 12:54:57,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:57" (1/1) ... [2020-10-13 12:54:57,994 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 12:54:57,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 12:54:57,995 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 12:54:57,995 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 12:54:57,996 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 12:54:58,056 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 12:54:58,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 12:54:58,057 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2020-10-13 12:54:58,057 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 12:54:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 12:54:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 12:54:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2020-10-13 12:54:58,057 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 12:54:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 12:54:58,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 12:54:58,229 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 12:54:58,230 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-13 12:54:58,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:54:58 BoogieIcfgContainer [2020-10-13 12:54:58,234 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 12:54:58,235 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 12:54:58,235 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 12:54:58,238 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 12:54:58,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:54:57" (1/3) ... [2020-10-13 12:54:58,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e2dbf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:54:58, skipping insertion in model container [2020-10-13 12:54:58,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:54:57" (2/3) ... [2020-10-13 12:54:58,240 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38e2dbf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:54:58, skipping insertion in model container [2020-10-13 12:54:58,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:54:58" (3/3) ... [2020-10-13 12:54:58,242 INFO L109 eAbstractionObserver]: Analyzing ICFG Fibonacci04.c [2020-10-13 12:54:58,252 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 12:54:58,260 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 12:54:58,274 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 12:54:58,298 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 12:54:58,298 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 12:54:58,298 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 12:54:58,298 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 12:54:58,298 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 12:54:58,299 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 12:54:58,299 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 12:54:58,299 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 12:54:58,315 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-10-13 12:54:58,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-13 12:54:58,320 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:54:58,321 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:54:58,321 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:54:58,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:54:58,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1356498376, now seen corresponding path program 1 times [2020-10-13 12:54:58,334 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:54:58,334 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1111982352] [2020-10-13 12:54:58,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:54:58,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:54:58,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:54:58,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:54:58,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 12:54:58,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:54:58,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 12:54:58,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:54:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:54:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:54:58,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:54:58,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 12:54:58,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:54:58,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:54:58,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:54:58,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:54:58,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:54:58,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:54:58,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:54:58,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:54:58,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:54:58,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:54:58,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:54:58,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 12:54:58,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 12:54:58,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:54:58,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:54:58,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:54:58,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:54:58,673 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:54:58,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 12:54:58,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:54:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:54:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:54:58,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:54:58,674 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:54:58,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 12:54:58,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1111982352] [2020-10-13 12:54:58,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 12:54:58,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-13 12:54:58,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447219468] [2020-10-13 12:54:58,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 12:54:58,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:54:58,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 12:54:58,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-13 12:54:58,744 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2020-10-13 12:54:58,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:54:58,867 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2020-10-13 12:54:58,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 12:54:58,869 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-13 12:54:58,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:54:58,881 INFO L225 Difference]: With dead ends: 35 [2020-10-13 12:54:58,881 INFO L226 Difference]: Without dead ends: 21 [2020-10-13 12:54:58,885 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 [2020-10-13 12:54:58,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-13 12:54:58,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-13 12:54:58,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-13 12:54:58,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2020-10-13 12:54:58,962 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 13 [2020-10-13 12:54:58,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:54:58,963 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2020-10-13 12:54:58,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 12:54:58,963 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2020-10-13 12:54:58,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-13 12:54:58,966 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:54:58,969 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:54:58,969 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 12:54:58,970 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:54:58,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:54:58,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1761048597, now seen corresponding path program 1 times [2020-10-13 12:54:58,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:54:58,971 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067795893] [2020-10-13 12:54:58,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:54:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:54:58,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:54:59,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:54:59,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:54:59,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:54:59,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-13 12:54:59,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:54:59,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 696 [2020-10-13 12:54:59,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:54:59,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:54:59,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-13 12:54:59,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:54:59,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-13 12:54:59,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:54:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:54:59,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:54:59,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:54:59,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:54:59,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:54:59,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:54:59,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:54:59,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:54:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:54:59,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:54:59,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:54:59,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 12:54:59,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:54:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:54:59,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:54:59,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-13 12:54:59,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:54:59,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-13 12:54:59,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:54:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:54:59,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-10-13 12:54:59,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:54:59,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:54:59,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:54:59,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:54:59,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:54:59,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:54:59,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:54:59,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:54:59,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:54:59,810 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:54:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:54:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 12:54:59,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:54:59,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:54:59,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-10-13 12:54:59,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:54:59,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:54:59,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:54:59,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:54:59,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:54:59,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:54:59,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:54:59,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:54:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 12:54:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:54:59,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:54:59,842 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 12:54:59,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067795893] [2020-10-13 12:54:59,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:54:59,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 12:54:59,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839420483] [2020-10-13 12:54:59,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 12:54:59,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:54:59,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 12:54:59,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:54:59,846 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 6 states. [2020-10-13 12:54:59,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:54:59,926 INFO L93 Difference]: Finished difference Result 38 states and 49 transitions. [2020-10-13 12:54:59,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 12:54:59,927 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-10-13 12:54:59,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:54:59,928 INFO L225 Difference]: With dead ends: 38 [2020-10-13 12:54:59,929 INFO L226 Difference]: Without dead ends: 23 [2020-10-13 12:54:59,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-13 12:54:59,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-13 12:54:59,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-13 12:54:59,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-13 12:54:59,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2020-10-13 12:54:59,938 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 26 [2020-10-13 12:54:59,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:54:59,939 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2020-10-13 12:54:59,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 12:54:59,939 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2020-10-13 12:54:59,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-13 12:54:59,940 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:54:59,941 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:54:59,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 12:54:59,941 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:54:59,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:54:59,942 INFO L82 PathProgramCache]: Analyzing trace with hash -624449707, now seen corresponding path program 1 times [2020-10-13 12:54:59,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:54:59,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118705814] [2020-10-13 12:54:59,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:54:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:54:59,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:54:59,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:00,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-13 12:55:00,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:55:00,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-13 12:55:00,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:00,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:55:00,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:55:00,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 12:55:00,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:00,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:55:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:00,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:00,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:55:00,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:00,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:00,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:00,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:00,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:00,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:00,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:00,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 12:55:00,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:00,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:00,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:00,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:55:00,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-13 12:55:00,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:00,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:55:00,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:00,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 12:55:00,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:00,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:00,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:00,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:00,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:00,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:00,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 12:55:00,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:00,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:00,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:55:00,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:00,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:00,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:00,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:00,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:00,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:00,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:55:00,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:55:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:00,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:55:00,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:00,297 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-13 12:55:00,297 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118705814] [2020-10-13 12:55:00,297 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:55:00,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 12:55:00,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96235347] [2020-10-13 12:55:00,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 12:55:00,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:55:00,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 12:55:00,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-13 12:55:00,300 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 7 states. [2020-10-13 12:55:00,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:55:00,417 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2020-10-13 12:55:00,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 12:55:00,418 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2020-10-13 12:55:00,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:55:00,419 INFO L225 Difference]: With dead ends: 30 [2020-10-13 12:55:00,420 INFO L226 Difference]: Without dead ends: 26 [2020-10-13 12:55:00,420 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:55:00,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-13 12:55:00,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2020-10-13 12:55:00,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-13 12:55:00,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2020-10-13 12:55:00,427 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 27 [2020-10-13 12:55:00,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:55:00,428 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2020-10-13 12:55:00,428 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 12:55:00,428 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2020-10-13 12:55:00,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-13 12:55:00,429 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:00,429 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:00,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 12:55:00,430 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:00,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:00,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1645568569, now seen corresponding path program 1 times [2020-10-13 12:55:00,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:00,431 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425440268] [2020-10-13 12:55:00,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:00,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:00,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-13 12:55:00,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:55:00,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-13 12:55:00,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:00,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:55:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 12:55:00,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:55:00,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:00,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:55:00,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:00,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:00,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:55:00,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:00,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:55:00,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:00,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:00,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:00,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:00,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:00,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 12:55:00,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:00,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:00,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-13 12:55:00,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:55:00,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 12:55:00,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:55:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 12:55:00,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 12:55:00,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:00,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:00,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:00,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:00,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:00,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:55:00,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:00,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:55:00,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:00,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:00,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:00,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:00,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:00,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:00,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:00,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:55:00,719 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 12:55:00,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:00,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:55:00,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 12:55:00,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:55:00,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:00,739 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-13 12:55:00,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425440268] [2020-10-13 12:55:00,740 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:55:00,740 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-13 12:55:00,740 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211163934] [2020-10-13 12:55:00,741 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-13 12:55:00,741 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:55:00,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-13 12:55:00,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-13 12:55:00,742 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 6 states. [2020-10-13 12:55:00,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:55:00,863 INFO L93 Difference]: Finished difference Result 49 states and 70 transitions. [2020-10-13 12:55:00,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-13 12:55:00,864 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-10-13 12:55:00,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:55:00,866 INFO L225 Difference]: With dead ends: 49 [2020-10-13 12:55:00,866 INFO L226 Difference]: Without dead ends: 31 [2020-10-13 12:55:00,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2020-10-13 12:55:00,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-13 12:55:00,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2020-10-13 12:55:00,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-13 12:55:00,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2020-10-13 12:55:00,876 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 28 [2020-10-13 12:55:00,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:55:00,877 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2020-10-13 12:55:00,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-13 12:55:00,877 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2020-10-13 12:55:00,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-10-13 12:55:00,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:00,879 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:00,880 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 12:55:00,880 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:00,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:00,880 INFO L82 PathProgramCache]: Analyzing trace with hash 380905728, now seen corresponding path program 2 times [2020-10-13 12:55:00,880 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:00,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1851270157] [2020-10-13 12:55:00,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:00,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:00,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:02,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:02,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-13 12:55:02,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:55:02,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1191 [2020-10-13 12:55:02,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:02,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:55:02,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:55:02,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 12:55:02,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:02,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:55:02,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:02,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:02,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:02,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:55:02,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:02,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:02,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:02,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:02,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:02,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 12:55:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:02,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:02,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:02,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:02,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:02,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 12:55:02,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:55:02,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 754 [2020-10-13 12:55:02,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:02,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:55:02,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:02,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 12:55:02,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:02,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:02,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:02,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,008 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:03,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:03,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:55:03,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-13 12:55:03,009 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 12:55:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:03,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 12:55:03,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:03,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:03,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:03,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:03,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:03,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 12:55:03,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:03,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:55:03,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:03,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:03,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:03,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:03,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:03,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:03,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:55:03,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:55:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:03,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:55:03,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:03,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 12:55:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:03,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:03,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:03,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:03,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 12:55:03,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:03,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:03,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:55:03,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:03,079 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-13 12:55:03,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1851270157] [2020-10-13 12:55:03,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:55:03,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 12:55:03,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997982142] [2020-10-13 12:55:03,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 12:55:03,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:55:03,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 12:55:03,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-13 12:55:03,082 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 8 states. [2020-10-13 12:55:03,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:55:03,174 INFO L93 Difference]: Finished difference Result 37 states and 49 transitions. [2020-10-13 12:55:03,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-13 12:55:03,174 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2020-10-13 12:55:03,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:55:03,176 INFO L225 Difference]: With dead ends: 37 [2020-10-13 12:55:03,176 INFO L226 Difference]: Without dead ends: 33 [2020-10-13 12:55:03,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 12:55:03,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-13 12:55:03,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-13 12:55:03,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-13 12:55:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-10-13 12:55:03,185 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 41 [2020-10-13 12:55:03,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:55:03,186 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-10-13 12:55:03,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 12:55:03,186 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-10-13 12:55:03,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-13 12:55:03,189 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:03,189 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 9, 5, 5, 5, 5, 5, 5, 5, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:03,189 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 12:55:03,189 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:03,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:03,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1541039141, now seen corresponding path program 3 times [2020-10-13 12:55:03,190 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:03,190 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881919673] [2020-10-13 12:55:03,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:03,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,380 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:03,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:04,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:04,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:06,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:06,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:06,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:06,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:08,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-13 12:55:08,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 20 [2020-10-13 12:55:08,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-13 12:55:08,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:08,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:55:08,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 12:55:08,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:55:08,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:08,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:55:08,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:08,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:08,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:55:08,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:08,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:08,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:08,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:08,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:08,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 12:55:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:08,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:08,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:09,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:09,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:09,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:10,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:10,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:13,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:13,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-10-13 12:55:13,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 12:55:13,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-13 12:55:13,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-13 12:55:13,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 12:55:13,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-10-13 12:55:13,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:13,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:13,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:13,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:13,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:13,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:13,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:13,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:13,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:15,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:15,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 12:55:15,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 12:55:15,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2195 [2020-10-13 12:55:15,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:15,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:55:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:15,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-10-13 12:55:15,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:15,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:15,541 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:15,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:15,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:15,549 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:15,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:55:15,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:15,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:15,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:15,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 12:55:15,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:15,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:15,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:15,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:15,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:15,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:15,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:15,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:15,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:15,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:15,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:15,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:15,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:15,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:15,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:15,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:15,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:15,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:15,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:55:15,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:15,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:15,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:15,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:15,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 12:55:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:15,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:15,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:15,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:15,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:15,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 12:55:15,575 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:55:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:15,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:15,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:15,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-13 12:55:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:15,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:15,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:15,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:15,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:15,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:16,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-13 12:55:16,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 12:55:16,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 448 [2020-10-13 12:55:16,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:55:16,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 12:55:16,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-10-13 12:55:16,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:16,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:16,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:16,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:16,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:55:16,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-13 12:55:16,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 12:55:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:16,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 12:55:16,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:16,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:16,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:16,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:16,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:16,225 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:55:16,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 12:55:16,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:16,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:55:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:16,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:16,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:16,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:16,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:16,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:16,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:16,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:16,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:55:16,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:16,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:16,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:16,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:55:16,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:16,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 12:55:16,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:16,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:16,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:16,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:16,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:55:16,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:16,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:16,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:16,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:55:16,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:16,285 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 121 proven. 71 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-10-13 12:55:16,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881919673] [2020-10-13 12:55:16,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:55:16,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 12:55:16,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834847287] [2020-10-13 12:55:16,288 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 12:55:16,288 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:55:16,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 12:55:16,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:55:16,289 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 10 states. [2020-10-13 12:55:16,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:55:16,544 INFO L93 Difference]: Finished difference Result 75 states and 137 transitions. [2020-10-13 12:55:16,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 12:55:16,545 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 82 [2020-10-13 12:55:16,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:55:16,551 INFO L225 Difference]: With dead ends: 75 [2020-10-13 12:55:16,551 INFO L226 Difference]: Without dead ends: 48 [2020-10-13 12:55:16,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-10-13 12:55:16,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-13 12:55:16,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 45. [2020-10-13 12:55:16,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-13 12:55:16,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2020-10-13 12:55:16,570 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 82 [2020-10-13 12:55:16,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:55:16,571 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2020-10-13 12:55:16,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 12:55:16,571 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2020-10-13 12:55:16,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-10-13 12:55:16,576 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:16,577 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 13, 9, 9, 9, 9, 9, 9, 9, 6, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:16,577 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 12:55:16,577 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:16,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:16,577 INFO L82 PathProgramCache]: Analyzing trace with hash -180679041, now seen corresponding path program 4 times [2020-10-13 12:55:16,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:16,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800011347] [2020-10-13 12:55:16,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:16,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:16,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:16,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:17,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:17,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:17,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:17,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:17,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:17,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:17,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:17,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:17,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:17,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:18,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:18,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:18,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:18,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:21,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:21,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-13 12:55:21,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 21 [2020-10-13 12:55:21,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-13 12:55:21,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:21,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:55:21,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-13 12:55:21,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 12:55:21,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:21,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:55:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:21,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:21,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:21,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:55:21,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:21,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:21,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:21,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:21,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:21,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:21,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:21,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 12:55:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:21,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:21,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:21,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:21,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:21,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:21,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:22,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:22,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:22,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:22,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:22,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:22,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:23,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:23,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:23,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:23,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:23,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:23,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:25,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:25,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:25,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:25,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:25,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:25,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:25,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:25,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:25,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:25,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:26,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:26,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:26,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 12:55:26,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 29 [2020-10-13 12:55:26,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-13 12:55:26,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:26,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 12:55:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-13 12:55:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 12:55:26,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:26,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:26,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:26,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:26,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:26,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:26,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:26,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:26,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:26,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:27,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:27,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:27,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:27,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:27,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:28,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:28,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:28,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:28,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:28,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:28,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:31,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:31,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 12:55:31,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-10-13 12:55:31,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 12:55:31,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:55:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-13 12:55:31,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 12:55:31,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:31,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:31,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:31,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:31,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:31,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:31,710 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:31,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:55:31,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:31,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:31,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:31,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:31,711 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:31,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:31,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:31,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:31,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:31,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:31,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:31,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:31,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:31,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:31,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:31,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:31,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:31,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:31,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:31,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:31,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:31,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:31,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:31,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:55:31,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:31,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:31,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:31,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 12:55:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:31,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:31,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:31,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:31,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:31,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:31,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 12:55:31,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:55:31,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-13 12:55:31,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:31,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 12:55:31,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 12:55:31,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 12:55:31,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 12:55:31,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:31,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:31,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:31,952 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:31,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:32,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:32,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:55:32,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 12:55:32,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:32,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:55:32,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 12:55:32,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:32,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:32,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:32,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:32,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:32,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:32,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 12:55:32,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:32,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:32,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:32,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:55:32,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:32,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:32,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:32,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:32,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:32,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:55:32,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:32,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:32,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:32,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:55:32,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:32,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 12:55:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:32,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:32,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:32,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:32,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:55:32,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:55:32,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 12:55:32,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:55:32,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:32,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-13 12:55:32,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:32,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,131 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:32,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:33,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:33,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:33,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:33,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:33,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:33,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:37,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-13 12:55:37,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-10-13 12:55:37,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 12:55:37,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:37,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:55:37,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-13 12:55:37,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 12:55:37,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:37,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:37,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:37,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:37,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:37,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:55:37,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:37,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:37,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:37,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:37,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:37,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:37,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:37,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:37,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:37,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:37,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:37,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:37,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:37,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:37,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:37,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:37,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:37,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:37,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:37,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:37,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:37,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:55:37,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:37,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:37,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:37,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 12:55:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:37,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:37,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-13 12:55:37,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 12:55:37,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-13 12:55:37,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:37,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:55:37,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 12:55:37,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 12:55:37,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:37,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:37,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:37,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:37,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:37,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:55:37,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-13 12:55:37,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:55:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:37,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 12:55:37,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:37,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:37,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:37,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:37,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:37,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:55:37,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:55:37,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:55:37,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:37,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:37,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:37,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:37,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:37,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:37,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:37,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:37,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:37,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:37,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:37,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:55:37,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:37,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 12:55:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:37,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:37,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:37,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:37,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:55:37,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:37,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 12:55:37,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 12:55:37,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:55:37,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 906 backedges. 330 proven. 123 refuted. 0 times theorem prover too weak. 453 trivial. 0 not checked. [2020-10-13 12:55:37,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800011347] [2020-10-13 12:55:37,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:55:37,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-13 12:55:37,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661235838] [2020-10-13 12:55:37,537 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-13 12:55:37,537 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:55:37,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-13 12:55:37,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2020-10-13 12:55:37,538 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 11 states. [2020-10-13 12:55:37,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:55:37,676 INFO L93 Difference]: Finished difference Result 83 states and 130 transitions. [2020-10-13 12:55:37,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 12:55:37,677 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 134 [2020-10-13 12:55:37,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:55:37,679 INFO L225 Difference]: With dead ends: 83 [2020-10-13 12:55:37,679 INFO L226 Difference]: Without dead ends: 44 [2020-10-13 12:55:37,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2020-10-13 12:55:37,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-13 12:55:37,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-13 12:55:37,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-13 12:55:37,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 58 transitions. [2020-10-13 12:55:37,694 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 58 transitions. Word has length 134 [2020-10-13 12:55:37,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:55:37,695 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 58 transitions. [2020-10-13 12:55:37,695 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-13 12:55:37,695 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 58 transitions. [2020-10-13 12:55:37,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-13 12:55:37,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:37,696 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 13, 8, 8, 8, 8, 8, 8, 8, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:37,696 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 12:55:37,696 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:37,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:37,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1058056764, now seen corresponding path program 5 times [2020-10-13 12:55:37,697 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:37,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166333907] [2020-10-13 12:55:37,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:37,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:37,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:37,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:38,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:40,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:42,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:42,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-13 12:55:42,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 26 [2020-10-13 12:55:42,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-13 12:55:42,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:42,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 12:55:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-13 12:55:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:55:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:42,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 12:55:42,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:42,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:42,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:42,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-13 12:55:42,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:42,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:55:42,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:42,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:42,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:42,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:42,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:42,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-13 12:55:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:42,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:42,761 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:42,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:42,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:42,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:42,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:42,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:42,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:42,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:43,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:43,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:47,755 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:47,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 12:55:47,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-10-13 12:55:47,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 12:55:47,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:47,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-13 12:55:47,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 12:55:47,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:55:47,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:47,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:47,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:47,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:47,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:47,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:47,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:47,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:47,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:47,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:47,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:47,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:48,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:51,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-13 12:55:51,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-10-13 12:55:51,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3778 [2020-10-13 12:55:51,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:51,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:51,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:51,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:51,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:51,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:51,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:51,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:55:51,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:51,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:51,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:51,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:51,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:51,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:51,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:51,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:51,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:51,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:51,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:51,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:51,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:51,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:51,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:51,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:51,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:51,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:55:51,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:51,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:51,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:51,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 12:55:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:51,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:51,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:51,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:51,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:51,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:51,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:51,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:51,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:51,565 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:51,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:51,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:51,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:55:51,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:51,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:51,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:51,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:51,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:51,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:51,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:51,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-13 12:55:51,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:51,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:51,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:51,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:55:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:51,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:51,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:52,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:52,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:52,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:52,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:52,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:52,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:56,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-13 12:55:56,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-10-13 12:55:56,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-10-13 12:55:56,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:56,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-13 12:55:56,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-10-13 12:55:56,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:55:56,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:56,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:56,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:56,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,328 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-13 12:55:58,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-13 12:55:58,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1739 [2020-10-13 12:55:58,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-13 12:55:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-13 12:55:58,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 12:55:58,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:58,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 12:55:58,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-13 12:55:58,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 12:55:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:58,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 12:55:58,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:58,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 12:55:58,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:55:58,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:58,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 12:55:58,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:58,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 12:55:58,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:58,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:58,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:55:58,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-13 12:55:58,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-13 12:55:58,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 12:55:58,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-13 12:55:58,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-13 12:55:58,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-10-13 12:55:58,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-13 12:55:58,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-10-13 12:55:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:58,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:58,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:58,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:58,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-13 12:55:58,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-10-13 12:55:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 12:55:58,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:58,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 12:55:58,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 12:55:58,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 12:55:58,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-13 12:55:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 12:55:58,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 12:55:58,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 12:55:58,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 12:55:58,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 12:55:58,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 12:55:58,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 12:55:58,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 12:55:58,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-10-13 12:55:58,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 12:55:58,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 12:55:58,583 INFO L134 CoverageAnalysis]: Checked inductivity of 734 backedges. 260 proven. 53 refuted. 0 times theorem prover too weak. 421 trivial. 0 not checked. [2020-10-13 12:55:58,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166333907] [2020-10-13 12:55:58,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 12:55:58,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-13 12:55:58,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613827456] [2020-10-13 12:55:58,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-13 12:55:58,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 12:55:58,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-13 12:55:58,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-13 12:55:58,585 INFO L87 Difference]: Start difference. First operand 44 states and 58 transitions. Second operand 10 states. [2020-10-13 12:55:58,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 12:55:58,868 INFO L93 Difference]: Finished difference Result 91 states and 133 transitions. [2020-10-13 12:55:58,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-13 12:55:58,868 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 122 [2020-10-13 12:55:58,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 12:55:58,870 INFO L225 Difference]: With dead ends: 91 [2020-10-13 12:55:58,870 INFO L226 Difference]: Without dead ends: 49 [2020-10-13 12:55:58,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=182, Unknown=0, NotChecked=0, Total=272 [2020-10-13 12:55:58,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-13 12:55:58,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2020-10-13 12:55:58,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-13 12:55:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 60 transitions. [2020-10-13 12:55:58,879 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 60 transitions. Word has length 122 [2020-10-13 12:55:58,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 12:55:58,880 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 60 transitions. [2020-10-13 12:55:58,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-13 12:55:58,880 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 60 transitions. [2020-10-13 12:55:58,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-13 12:55:58,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 12:55:58,881 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 12, 7, 7, 7, 7, 7, 7, 7, 5, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 12:55:58,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 12:55:58,881 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 12:55:58,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 12:55:58,882 INFO L82 PathProgramCache]: Analyzing trace with hash 580129251, now seen corresponding path program 6 times [2020-10-13 12:55:58,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 12:55:58,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40976352] [2020-10-13 12:55:58,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 12:55:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 12:55:58,892 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 12:55:58,892 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 12:55:58,895 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 12:55:58,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:55:58 BoogieIcfgContainer [2020-10-13 12:55:58,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 12:55:58,918 INFO L168 Benchmark]: Toolchain (without parser) took 61261.84 ms. Allocated memory was 140.0 MB in the beginning and 887.6 MB in the end (delta: 747.6 MB). Free memory was 102.9 MB in the beginning and 156.7 MB in the end (delta: -53.8 MB). Peak memory consumption was 693.9 MB. Max. memory is 7.1 GB. [2020-10-13 12:55:58,919 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 12:55:58,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 226.21 ms. Allocated memory is still 140.0 MB. Free memory was 102.7 MB in the beginning and 93.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-10-13 12:55:58,920 INFO L168 Benchmark]: Boogie Preprocessor took 112.03 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 93.2 MB in the beginning and 181.0 MB in the end (delta: -87.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-10-13 12:55:58,921 INFO L168 Benchmark]: RCFGBuilder took 238.83 ms. Allocated memory is still 202.4 MB. Free memory was 181.0 MB in the beginning and 169.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. [2020-10-13 12:55:58,923 INFO L168 Benchmark]: TraceAbstraction took 60679.66 ms. Allocated memory was 202.4 MB in the beginning and 887.6 MB in the end (delta: 685.2 MB). Free memory was 168.4 MB in the beginning and 156.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 696.9 MB. Max. memory is 7.1 GB. [2020-10-13 12:55:58,930 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 226.21 ms. Allocated memory is still 140.0 MB. Free memory was 102.7 MB in the beginning and 93.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.03 ms. Allocated memory was 140.0 MB in the beginning and 202.4 MB in the end (delta: 62.4 MB). Free memory was 93.2 MB in the beginning and 181.0 MB in the end (delta: -87.8 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 238.83 ms. Allocated memory is still 202.4 MB. Free memory was 181.0 MB in the beginning and 169.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 60679.66 ms. Allocated memory was 202.4 MB in the beginning and 887.6 MB in the end (delta: 685.2 MB). Free memory was 168.4 MB in the beginning and 156.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 696.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 33]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L28] int x = __VERIFIER_nondet_int(); [L29] CALL, EXPR fibonacci(x) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND TRUE n == 1 [L20] return 1; [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND TRUE n < 1 [L18] return 0; [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND FALSE !(n < 1) [L19] COND TRUE n == 1 [L20] return 1; [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND TRUE n == 1 [L20] return 1; [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND TRUE n < 1 [L18] return 0; [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND FALSE !(n == 1) [L22] CALL, EXPR fibonacci(n-1) [L17] COND FALSE !(n < 1) [L19] COND TRUE n == 1 [L20] return 1; [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND TRUE n < 1 [L18] return 0; [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-1) [L22] CALL, EXPR fibonacci(n-2) [L17] COND FALSE !(n < 1) [L19] COND TRUE n == 1 [L20] return 1; [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L22] RET, EXPR fibonacci(n-2) [L22] return fibonacci(n-1) + fibonacci(n-2); [L29] RET, EXPR fibonacci(x) [L29] int result = fibonacci(x); [L30] COND FALSE !(x != 5 || result == 3) [L33] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 60.6s, OverallIterations: 9, TraceHistogramMax: 19, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 149 SDtfs, 154 SDslu, 396 SDs, 0 SdLazy, 475 SolverSat, 123 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 239 GetRequests, 160 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 58.8s InterpolantComputationTime, 582 NumberOfCodeBlocks, 582 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 465 ConstructedInterpolants, 0 QuantifiedInterpolants, 79509 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 1 PerfectInterpolantSequences, 1746/2026 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...