/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_10-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 13:22:23,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 13:22:23,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 13:22:23,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 13:22:23,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 13:22:23,352 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 13:22:23,354 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 13:22:23,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 13:22:23,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 13:22:23,362 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 13:22:23,363 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 13:22:23,366 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 13:22:23,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 13:22:23,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 13:22:23,374 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 13:22:23,376 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 13:22:23,378 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 13:22:23,381 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 13:22:23,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 13:22:23,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 13:22:23,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 13:22:23,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 13:22:23,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 13:22:23,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 13:22:23,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 13:22:23,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 13:22:23,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 13:22:23,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 13:22:23,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 13:22:23,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 13:22:23,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 13:22:23,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 13:22:23,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 13:22:23,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 13:22:23,414 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 13:22:23,414 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 13:22:23,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 13:22:23,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 13:22:23,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 13:22:23,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 13:22:23,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 13:22:23,419 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 13:22:23,446 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 13:22:23,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 13:22:23,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 13:22:23,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 13:22:23,448 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 13:22:23,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 13:22:23,448 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 13:22:23,449 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 13:22:23,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 13:22:23,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 13:22:23,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 13:22:23,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 13:22:23,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 13:22:23,450 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 13:22:23,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 13:22:23,450 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 13:22:23,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 13:22:23,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 13:22:23,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 13:22:23,451 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 13:22:23,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 13:22:23,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:22:23,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 13:22:23,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 13:22:23,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 13:22:23,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 13:22:23,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 13:22:23,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 13:22:23,453 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 13:22:23,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.4;log-additional-information=true; [2020-09-25 13:22:23,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 13:22:23,924 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 13:22:23,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 13:22:23,930 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 13:22:23,931 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 13:22:23,932 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_10-2.c [2020-09-25 13:22:24,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ece7812a/88832bf8c2ec42b4b8d6fdcae6c9ec3c/FLAG6ed7cb437 [2020-09-25 13:22:24,554 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 13:22:24,555 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_10-2.c [2020-09-25 13:22:24,563 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ece7812a/88832bf8c2ec42b4b8d6fdcae6c9ec3c/FLAG6ed7cb437 [2020-09-25 13:22:24,890 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ece7812a/88832bf8c2ec42b4b8d6fdcae6c9ec3c [2020-09-25 13:22:24,903 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 13:22:24,910 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 13:22:24,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 13:22:24,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 13:22:24,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 13:22:24,917 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:22:24" (1/1) ... [2020-09-25 13:22:24,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@240fc400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:24, skipping insertion in model container [2020-09-25 13:22:24,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 01:22:24" (1/1) ... [2020-09-25 13:22:24,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 13:22:24,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 13:22:25,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:22:25,180 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 13:22:25,198 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 13:22:25,214 INFO L208 MainTranslator]: Completed translation [2020-09-25 13:22:25,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:25 WrapperNode [2020-09-25 13:22:25,215 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 13:22:25,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 13:22:25,216 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 13:22:25,216 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 13:22:25,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:25" (1/1) ... [2020-09-25 13:22:25,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:25" (1/1) ... [2020-09-25 13:22:25,236 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:25" (1/1) ... [2020-09-25 13:22:25,236 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:25" (1/1) ... [2020-09-25 13:22:25,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:25" (1/1) ... [2020-09-25 13:22:25,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:25" (1/1) ... [2020-09-25 13:22:25,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:25" (1/1) ... [2020-09-25 13:22:25,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 13:22:25,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 13:22:25,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 13:22:25,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 13:22:25,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:25" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 13:22:25,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 13:22:25,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 13:22:25,420 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-25 13:22:25,420 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-25 13:22:25,420 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 13:22:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 13:22:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 13:22:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-25 13:22:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-25 13:22:25,421 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 13:22:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 13:22:25,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 13:22:25,659 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 13:22:25,659 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 13:22:25,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:22:25 BoogieIcfgContainer [2020-09-25 13:22:25,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 13:22:25,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 13:22:25,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 13:22:25,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 13:22:25,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 01:22:24" (1/3) ... [2020-09-25 13:22:25,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71686d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:22:25, skipping insertion in model container [2020-09-25 13:22:25,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 01:22:25" (2/3) ... [2020-09-25 13:22:25,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71686d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 01:22:25, skipping insertion in model container [2020-09-25 13:22:25,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 01:22:25" (3/3) ... [2020-09-25 13:22:25,676 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_10-2.c [2020-09-25 13:22:25,689 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 13:22:25,704 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 13:22:25,733 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 13:22:25,790 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 13:22:25,791 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 13:22:25,791 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 13:22:25,791 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 13:22:25,791 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 13:22:25,792 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 13:22:25,792 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 13:22:25,793 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 13:22:25,821 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-25 13:22:25,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 13:22:25,832 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:25,834 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:25,834 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:25,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:25,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-25 13:22:25,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:25,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026851223] [2020-09-25 13:22:25,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:25,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:25,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:26,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 13:22:26,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:26,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-09-25 13:22:26,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:26,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:26,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:26,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-09-25 13:22:26,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:26,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 13:22:26,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:26,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:26,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:26,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:26,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:26,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:26,337 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:26,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:26,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:26,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:26,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:26,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:26,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:26,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:26,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 13:22:26,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:26,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:26,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-25 13:22:26,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:26,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 13:22:26,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:26,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:22:26,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026851223] [2020-09-25 13:22:26,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:22:26,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:22:26,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154727552] [2020-09-25 13:22:26,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:22:26,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:26,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:22:26,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:22:26,415 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-25 13:22:26,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:26,518 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-25 13:22:26,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:22:26,520 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 13:22:26,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:26,535 INFO L225 Difference]: With dead ends: 58 [2020-09-25 13:22:26,535 INFO L226 Difference]: Without dead ends: 42 [2020-09-25 13:22:26,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:22:26,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-25 13:22:26,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-25 13:22:26,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 13:22:26,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 13:22:26,603 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-25 13:22:26,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:26,604 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 13:22:26,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:22:26,605 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 13:22:26,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-25 13:22:26,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:26,607 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:26,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 13:22:26,608 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:26,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:26,609 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-25 13:22:26,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:26,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281291471] [2020-09-25 13:22:26,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:26,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:26,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,680 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:26,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-09-25 13:22:26,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:26,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 13:22:26,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:26,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:26,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:26,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:26,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:26,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:26,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:26,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:26,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:26,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:26,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:26,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:26,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:26,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:26,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:26,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:26,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:26,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:26,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:26,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:26,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:26,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-25 13:22:26,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:26,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:26,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:26,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:26,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:26,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 13:22:26,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281291471] [2020-09-25 13:22:26,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:22:26,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 13:22:26,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236035652] [2020-09-25 13:22:26,972 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 13:22:26,972 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:26,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 13:22:26,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 13:22:26,973 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-25 13:22:27,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:27,053 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-25 13:22:27,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 13:22:27,054 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-25 13:22:27,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:27,056 INFO L225 Difference]: With dead ends: 50 [2020-09-25 13:22:27,056 INFO L226 Difference]: Without dead ends: 44 [2020-09-25 13:22:27,057 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 13:22:27,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-25 13:22:27,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-25 13:22:27,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-25 13:22:27,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-25 13:22:27,068 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-25 13:22:27,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:27,069 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-25 13:22:27,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 13:22:27,069 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-25 13:22:27,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-25 13:22:27,071 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:27,072 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:27,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 13:22:27,072 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:27,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:27,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-25 13:22:27,073 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:27,073 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2118705814] [2020-09-25 13:22:27,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:27,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:27,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:27,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:27,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:27,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:28,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:28,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-09-25 13:22:28,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 13:22:28,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1894 [2020-09-25 13:22:28,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:28,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:28,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:28,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 13:22:28,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:29,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:29,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:29,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:29,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:29,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:29,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:29,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:29,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:29,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:29,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:29,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:29,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:29,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:29,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:29,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:22:29,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-25 13:22:29,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:29,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:29,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:29,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:22:29,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:29,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:29,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:29,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:29,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:29,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:29,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 13:22:29,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:29,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:29,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:29,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:29,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:29,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:29,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:29,267 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:29,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:29,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:29,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:22:29,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:29,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:29,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:29,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:29,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:22:29,302 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2118705814] [2020-09-25 13:22:29,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 13:22:29,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-25 13:22:29,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804971388] [2020-09-25 13:22:29,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:22:29,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:29,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:22:29,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:22:29,305 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-25 13:22:29,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:29,427 INFO L93 Difference]: Finished difference Result 58 states and 69 transitions. [2020-09-25 13:22:29,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:22:29,428 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-25 13:22:29,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:29,430 INFO L225 Difference]: With dead ends: 58 [2020-09-25 13:22:29,430 INFO L226 Difference]: Without dead ends: 52 [2020-09-25 13:22:29,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:22:29,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-09-25 13:22:29,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2020-09-25 13:22:29,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-09-25 13:22:29,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 60 transitions. [2020-09-25 13:22:29,442 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 60 transitions. Word has length 33 [2020-09-25 13:22:29,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:29,443 INFO L479 AbstractCegarLoop]: Abstraction has 50 states and 60 transitions. [2020-09-25 13:22:29,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:22:29,443 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 60 transitions. [2020-09-25 13:22:29,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-25 13:22:29,445 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:29,445 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:29,445 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 13:22:29,446 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:29,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:29,446 INFO L82 PathProgramCache]: Analyzing trace with hash 186293384, now seen corresponding path program 1 times [2020-09-25 13:22:29,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:29,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581459851] [2020-09-25 13:22:29,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:29,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:29,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:29,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:31,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-25 13:22:31,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 13:22:31,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1677 [2020-09-25 13:22:31,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:31,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:31,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:22:31,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-25 13:22:31,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:31,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:31,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:31,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:31,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:31,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 13:22:31,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:31,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:31,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:31,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:31,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:31,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:31,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:31,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:31,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:31,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 13:22:31,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:31,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-09-25 13:22:31,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:31,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:22:31,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 13:22:31,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:31,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:31,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:31,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:31,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:31,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:31,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:22:31,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:31,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:31,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:31,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:31,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:22:31,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:31,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:22:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:31,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:31,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:31,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:31,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 13:22:31,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:31,351 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:31,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:22:31,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:31,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:31,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:31,378 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 13:22:31,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581459851] [2020-09-25 13:22:31,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:31,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 13:22:31,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727674763] [2020-09-25 13:22:31,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:22:31,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:31,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:22:31,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:22:31,384 INFO L87 Difference]: Start difference. First operand 50 states and 60 transitions. Second operand 7 states. [2020-09-25 13:22:31,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:31,526 INFO L93 Difference]: Finished difference Result 104 states and 138 transitions. [2020-09-25 13:22:31,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 13:22:31,527 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-09-25 13:22:31,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:31,530 INFO L225 Difference]: With dead ends: 104 [2020-09-25 13:22:31,530 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 13:22:31,532 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:22:31,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 13:22:31,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-25 13:22:31,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 13:22:31,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2020-09-25 13:22:31,557 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 35 [2020-09-25 13:22:31,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:31,559 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2020-09-25 13:22:31,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:22:31,559 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2020-09-25 13:22:31,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-25 13:22:31,565 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:31,565 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:31,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 13:22:31,566 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:31,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:31,566 INFO L82 PathProgramCache]: Analyzing trace with hash 758565477, now seen corresponding path program 1 times [2020-09-25 13:22:31,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:31,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [524282925] [2020-09-25 13:22:31,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:31,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:31,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:31,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:35,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:36,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 13:22:36,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:22:36,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 13:22:36,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:36,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:36,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:36,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:36,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 13:22:36,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:36,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:36,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:36,607 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:36,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:36,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:36,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:22:36,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:36,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:36,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:36,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:36,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:36,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:36,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:37,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:37,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:37,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:40,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 13:22:40,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:22:40,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3521 [2020-09-25 13:22:40,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:40,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:40,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:22:40,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:40,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-25 13:22:40,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:40,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:40,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:40,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:40,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:40,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:40,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-09-25 13:22:40,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:40,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:40,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:22:40,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:40,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:40,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:40,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:40,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:40,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:40,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:40,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:40,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:40,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:40,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:40,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:40,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:40,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:40,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:40,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:40,273 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:40,273 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:40,273 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:40,273 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:40,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:40,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:40,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:40,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:40,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:40,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 13:22:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:40,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:40,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:22:40,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:40,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-09-25 13:22:40,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:40,298 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:40,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:22:40,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:40,325 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-25 13:22:40,325 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [524282925] [2020-09-25 13:22:40,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:40,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 13:22:40,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316333783] [2020-09-25 13:22:40,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 13:22:40,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:40,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 13:22:40,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-25 13:22:40,327 INFO L87 Difference]: Start difference. First operand 54 states and 67 transitions. Second operand 7 states. [2020-09-25 13:22:40,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:40,444 INFO L93 Difference]: Finished difference Result 66 states and 80 transitions. [2020-09-25 13:22:40,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 13:22:40,445 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2020-09-25 13:22:40,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:40,446 INFO L225 Difference]: With dead ends: 66 [2020-09-25 13:22:40,447 INFO L226 Difference]: Without dead ends: 60 [2020-09-25 13:22:40,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-25 13:22:40,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-09-25 13:22:40,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2020-09-25 13:22:40,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-09-25 13:22:40,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 67 transitions. [2020-09-25 13:22:40,457 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 67 transitions. Word has length 51 [2020-09-25 13:22:40,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:40,458 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 67 transitions. [2020-09-25 13:22:40,458 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 13:22:40,458 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 67 transitions. [2020-09-25 13:22:40,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-09-25 13:22:40,461 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:40,461 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:40,461 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 13:22:40,461 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:40,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:40,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1879014210, now seen corresponding path program 1 times [2020-09-25 13:22:40,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:40,462 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060921210] [2020-09-25 13:22:40,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:40,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:40,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:41,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:41,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:41,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:41,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:45,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:45,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-25 13:22:45,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 10 [2020-09-25 13:22:45,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-09-25 13:22:45,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:45,476 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:45,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:22:45,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:45,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 13:22:45,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:45,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:45,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:45,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:45,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:45,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:45,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:22:45,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:45,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:45,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:45,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:45,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:45,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:45,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:45,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:45,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:45,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:45,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:45,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:46,469 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:46,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:46,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:46,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:46,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:49,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:50,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-25 13:22:50,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 13 [2020-09-25 13:22:50,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 13:22:50,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:50,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:22:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:22:50,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 13:22:50,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:50,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:50,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:50,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:50,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:50,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:22:50,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-09-25 13:22:50,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:50,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:50,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:22:50,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:50,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:50,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:50,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:50,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:50,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:50,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:50,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:50,605 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:50,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:50,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:50,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:50,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:50,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:50,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:50,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:50,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:50,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:50,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:22:50,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:50,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:50,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:50,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:50,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:50,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:50,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 13:22:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:50,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:50,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:22:50,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:22:50,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-09-25 13:22:50,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:50,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 13:22:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:50,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-25 13:22:50,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:50,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:22:50,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:50,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:50,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:50,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:50,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:22:50,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:50,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:50,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:22:50,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:50,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 13:22:50,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:50,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:22:50,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:50,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:50,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:50,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:22:50,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:50,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 13:22:50,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:50,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:22:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:22:50,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:22:50,863 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 29 proven. 5 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-09-25 13:22:50,863 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060921210] [2020-09-25 13:22:50,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:22:50,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 13:22:50,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133743917] [2020-09-25 13:22:50,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 13:22:50,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:22:50,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 13:22:50,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-25 13:22:50,866 INFO L87 Difference]: Start difference. First operand 54 states and 67 transitions. Second operand 8 states. [2020-09-25 13:22:51,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:22:51,048 INFO L93 Difference]: Finished difference Result 99 states and 136 transitions. [2020-09-25 13:22:51,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:22:51,049 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 67 [2020-09-25 13:22:51,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:22:51,051 INFO L225 Difference]: With dead ends: 99 [2020-09-25 13:22:51,051 INFO L226 Difference]: Without dead ends: 93 [2020-09-25 13:22:51,052 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-25 13:22:51,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-25 13:22:51,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 85. [2020-09-25 13:22:51,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-25 13:22:51,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 117 transitions. [2020-09-25 13:22:51,065 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 117 transitions. Word has length 67 [2020-09-25 13:22:51,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:22:51,066 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 117 transitions. [2020-09-25 13:22:51,066 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 13:22:51,066 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 117 transitions. [2020-09-25 13:22:51,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-09-25 13:22:51,069 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:22:51,070 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:22:51,070 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 13:22:51,070 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:22:51,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:22:51,070 INFO L82 PathProgramCache]: Analyzing trace with hash 1208671938, now seen corresponding path program 1 times [2020-09-25 13:22:51,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:22:51,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1451595680] [2020-09-25 13:22:51,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:22:51,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:51,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:51,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:53,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:53,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:53,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:53,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:53,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:54,073 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:54,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:56,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-09-25 13:22:56,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 15 [2020-09-25 13:22:56,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-09-25 13:22:56,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:56,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:22:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 13:22:56,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 13:22:56,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:56,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:22:56,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:56,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:22:56,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:22:56,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:22:56,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:22:56,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:22:56,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:22:56,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:22:56,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:22:56,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:22:56,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:22:56,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:22:56,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:22:56,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:56,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:22:57,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:00,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:00,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:01,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 78 [2020-09-25 13:23:01,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 11 [2020-09-25 13:23:01,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 13:23:01,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:01,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:01,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 13:23:01,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:23:01,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 13:23:01,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:01,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:01,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:01,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 13:23:01,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 13:23:01,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-09-25 13:23:01,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:01,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:23:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:01,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 13:23:01,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:01,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:01,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:01,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:01,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:23:01,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:01,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 13:23:01,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:01,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:01,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:23:01,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:01,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:23:01,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:23:01,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:23:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:01,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:01,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:23:01,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:01,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:23:01,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:01,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:01,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:23:01,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:01,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:23:01,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:23:01,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-25 13:23:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:01,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:01,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:02,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:02,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-09-25 13:23:02,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-09-25 13:23:02,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 557 [2020-09-25 13:23:02,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:02,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 13:23:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 13:23:02,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-09-25 13:23:02,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:23:02,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:02,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:02,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:02,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:02,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:23:02,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:02,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 13:23:02,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:02,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:23:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:02,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:23:02,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:02,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-25 13:23:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:02,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:02,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:02,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:23:02,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 13:23:02,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:02,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:23:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:02,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 13:23:02,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:02,142 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 10 proven. 26 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-09-25 13:23:02,142 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1451595680] [2020-09-25 13:23:02,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 13:23:02,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 13:23:02,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172695937] [2020-09-25 13:23:02,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 13:23:02,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 13:23:02,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 13:23:02,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 13:23:02,144 INFO L87 Difference]: Start difference. First operand 85 states and 117 transitions. Second operand 10 states. [2020-09-25 13:23:02,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 13:23:02,531 INFO L93 Difference]: Finished difference Result 200 states and 325 transitions. [2020-09-25 13:23:02,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 13:23:02,534 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-09-25 13:23:02,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 13:23:02,536 INFO L225 Difference]: With dead ends: 200 [2020-09-25 13:23:02,536 INFO L226 Difference]: Without dead ends: 121 [2020-09-25 13:23:02,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-09-25 13:23:02,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2020-09-25 13:23:02,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 111. [2020-09-25 13:23:02,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-09-25 13:23:02,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 160 transitions. [2020-09-25 13:23:02,574 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 160 transitions. Word has length 71 [2020-09-25 13:23:02,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 13:23:02,575 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 160 transitions. [2020-09-25 13:23:02,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 13:23:02,575 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 160 transitions. [2020-09-25 13:23:02,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-09-25 13:23:02,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 13:23:02,578 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 13:23:02,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 13:23:02,579 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 13:23:02,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 13:23:02,580 INFO L82 PathProgramCache]: Analyzing trace with hash -1957044445, now seen corresponding path program 1 times [2020-09-25 13:23:02,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 13:23:02,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [898043712] [2020-09-25 13:23:02,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 13:23:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:02,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:02,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:02,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:02,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:02,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:02,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:02,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:03,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:04,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:04,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:04,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:04,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:04,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:04,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:05,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:06,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:06,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:07,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-25 13:23:07,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 18 [2020-09-25 13:23:07,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 13:23:07,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:07,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:07,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:23:07,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-25 13:23:07,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 13:23:07,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:23:07,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 13:23:07,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:07,648 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:07,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 13:23:07,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:07,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 13:23:07,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:07,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:07,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:23:07,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:07,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:23:07,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:23:07,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 13:23:07,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:07,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:07,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:08,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:08,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:08,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:09,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:09,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:09,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:09,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:09,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:09,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:09,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:11,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:12,682 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:12,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 13:23:12,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 17 [2020-09-25 13:23:12,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-09-25 13:23:12,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:12,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:12,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 13:23:12,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 13:23:12,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-09-25 13:23:12,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 13:23:12,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:12,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:12,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:12,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:12,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:12,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:13,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:13,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:13,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:13,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:14,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:14,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 54 [2020-09-25 13:23:14,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-09-25 13:23:14,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2259 [2020-09-25 13:23:14,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:14,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 13:23:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:14,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 13:23:14,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 13:23:15,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:15,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:15,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:15,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:15,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:15,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-09-25 13:23:15,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 13:23:15,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 13:23:15,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:15,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:15,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 13:23:15,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:15,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 13:23:15,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:15,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-25 13:23:15,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:15,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:15,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:15,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:23:15,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:15,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 13:23:15,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:15,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:15,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:23:15,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:15,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:23:15,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:15,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 13:23:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:15,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:15,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:15,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 13:23:15,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:15,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 13:23:15,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:15,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 13:23:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:15,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 13:23:15,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:15,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-25 13:23:15,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:15,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:15,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 13:23:15,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 13:23:15,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 13:23:15,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 13:23:15,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 13:23:15,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 13:23:15,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 13:23:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 13:23:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 13:23:15,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 13:23:15,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-25 13:23:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 13:23:15,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:15,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:15,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:15,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:15,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:16,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:16,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:16,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:16,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:16,865 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:16,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:16,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 13:23:17,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking...