/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=0.3 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 12:16:43,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 12:16:43,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 12:16:43,645 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 12:16:43,646 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 12:16:43,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 12:16:43,649 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 12:16:43,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 12:16:43,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 12:16:43,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 12:16:43,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 12:16:43,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 12:16:43,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 12:16:43,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 12:16:43,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 12:16:43,660 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 12:16:43,661 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 12:16:43,662 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 12:16:43,663 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 12:16:43,665 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 12:16:43,667 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 12:16:43,669 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 12:16:43,670 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 12:16:43,671 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 12:16:43,674 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 12:16:43,674 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 12:16:43,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 12:16:43,675 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 12:16:43,676 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 12:16:43,677 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 12:16:43,677 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 12:16:43,678 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 12:16:43,679 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 12:16:43,680 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 12:16:43,682 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 12:16:43,682 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 12:16:43,683 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 12:16:43,683 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 12:16:43,683 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 12:16:43,684 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 12:16:43,685 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 12:16:43,686 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 12:16:43,713 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 12:16:43,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 12:16:43,714 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 12:16:43,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 12:16:43,715 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 12:16:43,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 12:16:43,715 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 12:16:43,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 12:16:43,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 12:16:43,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 12:16:43,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 12:16:43,716 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 12:16:43,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 12:16:43,717 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 12:16:43,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 12:16:43,717 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 12:16:43,717 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 12:16:43,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 12:16:43,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 12:16:43,718 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 12:16:43,718 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 12:16:43,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 12:16:43,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 12:16:43,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 12:16:43,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 12:16:43,719 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 12:16:43,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 12:16:43,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 12:16:43,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 12:16:43,720 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true; [2020-09-25 12:16:44,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 12:16:44,205 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 12:16:44,212 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 12:16:44,214 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 12:16:44,215 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 12:16:44,216 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-09-25 12:16:44,311 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c901a7a9c/314c263a722e448ea560708632730789/FLAG7941fc770 [2020-09-25 12:16:44,833 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 12:16:44,834 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_i15_o15-1.c [2020-09-25 12:16:44,842 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c901a7a9c/314c263a722e448ea560708632730789/FLAG7941fc770 [2020-09-25 12:16:45,187 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/c901a7a9c/314c263a722e448ea560708632730789 [2020-09-25 12:16:45,200 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 12:16:45,205 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 12:16:45,207 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 12:16:45,207 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 12:16:45,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 12:16:45,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:16:45" (1/1) ... [2020-09-25 12:16:45,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ef6092a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:45, skipping insertion in model container [2020-09-25 12:16:45,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 12:16:45" (1/1) ... [2020-09-25 12:16:45,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 12:16:45,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 12:16:45,450 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:16:45,456 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 12:16:45,475 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 12:16:45,492 INFO L208 MainTranslator]: Completed translation [2020-09-25 12:16:45,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:45 WrapperNode [2020-09-25 12:16:45,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 12:16:45,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 12:16:45,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 12:16:45,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 12:16:45,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:45" (1/1) ... [2020-09-25 12:16:45,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:45" (1/1) ... [2020-09-25 12:16:45,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:45" (1/1) ... [2020-09-25 12:16:45,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:45" (1/1) ... [2020-09-25 12:16:45,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:45" (1/1) ... [2020-09-25 12:16:45,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:45" (1/1) ... [2020-09-25 12:16:45,525 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:45" (1/1) ... [2020-09-25 12:16:45,527 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 12:16:45,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 12:16:45,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 12:16:45,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 12:16:45,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:45" (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 12:16:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 12:16:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 12:16:45,678 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-09-25 12:16:45,679 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 12:16:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 12:16:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 12:16:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-09-25 12:16:45,679 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 12:16:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 12:16:45,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 12:16:45,876 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 12:16:45,877 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 12:16:45,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:16:45 BoogieIcfgContainer [2020-09-25 12:16:45,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 12:16:45,882 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 12:16:45,882 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 12:16:45,886 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 12:16:45,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 12:16:45" (1/3) ... [2020-09-25 12:16:45,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232d9e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:16:45, skipping insertion in model container [2020-09-25 12:16:45,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 12:16:45" (2/3) ... [2020-09-25 12:16:45,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@232d9e29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 12:16:45, skipping insertion in model container [2020-09-25 12:16:45,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 12:16:45" (3/3) ... [2020-09-25 12:16:45,890 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i15_o15-1.c [2020-09-25 12:16:45,902 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 12:16:45,912 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 12:16:45,933 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 12:16:45,964 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 12:16:45,964 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 12:16:45,965 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 12:16:45,965 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 12:16:45,966 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 12:16:45,967 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 12:16:45,967 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 12:16:45,967 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 12:16:45,990 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-09-25 12:16:45,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-25 12:16:45,997 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:45,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:45,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:46,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:46,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1037734449, now seen corresponding path program 1 times [2020-09-25 12:16:46,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:46,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675960112] [2020-09-25 12:16:46,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:46,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:46,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-09-25 12:16:46,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:46,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 12:16:46,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:46,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:46,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:16:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:46,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 12:16:46,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:16:46,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:46,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:46,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:46,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:46,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 12:16:46,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:46,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:46,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:46,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:46,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:46,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:46,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:46,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:46,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 12:16:46,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:46,282 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 12:16:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:46,283 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 12:16:46,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:46,383 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 12:16:46,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675960112] [2020-09-25 12:16:46,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 12:16:46,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 12:16:46,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102308157] [2020-09-25 12:16:46,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 12:16:46,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:46,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 12:16:46,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 12:16:46,419 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 5 states. [2020-09-25 12:16:46,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:46,497 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2020-09-25 12:16:46,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 12:16:46,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-25 12:16:46,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:46,511 INFO L225 Difference]: With dead ends: 37 [2020-09-25 12:16:46,511 INFO L226 Difference]: Without dead ends: 23 [2020-09-25 12:16:46,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 12:16:46,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-09-25 12:16:46,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-09-25 12:16:46,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-09-25 12:16:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-09-25 12:16:46,564 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 16 [2020-09-25 12:16:46,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:46,565 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-09-25 12:16:46,565 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 12:16:46,565 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-09-25 12:16:46,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 12:16:46,567 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:46,568 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:46,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 12:16:46,568 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:46,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:46,569 INFO L82 PathProgramCache]: Analyzing trace with hash -1478812441, now seen corresponding path program 1 times [2020-09-25 12:16:46,569 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:46,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942657468] [2020-09-25 12:16:46,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:46,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:46,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:46,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-09-25 12:16:46,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:46,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-09-25 12:16:46,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:46,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:46,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:16:46,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:46,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 12:16:46,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:46,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:46,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:46,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:46,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:46,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:16:46,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:46,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:46,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:46,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:46,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:46,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:46,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:46,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:46,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:16:46,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:46,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 12:16:46,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:46,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:46,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 12:16:46,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:46,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-09-25 12:16:46,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:46,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:46,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:46,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:46,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:46,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:46,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 12:16:46,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:46,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:46,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:46,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:16:47,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-25 12:16:47,044 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942657468] [2020-09-25 12:16:47,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:47,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 12:16:47,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815730997] [2020-09-25 12:16:47,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 12:16:47,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:47,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 12:16:47,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-25 12:16:47,047 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 7 states. [2020-09-25 12:16:47,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:47,114 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-09-25 12:16:47,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 12:16:47,116 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-09-25 12:16:47,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:47,118 INFO L225 Difference]: With dead ends: 34 [2020-09-25 12:16:47,118 INFO L226 Difference]: Without dead ends: 28 [2020-09-25 12:16:47,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:16:47,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-09-25 12:16:47,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-09-25 12:16:47,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-09-25 12:16:47,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2020-09-25 12:16:47,133 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 24 [2020-09-25 12:16:47,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:47,134 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2020-09-25 12:16:47,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 12:16:47,135 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2020-09-25 12:16:47,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-09-25 12:16:47,138 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:47,138 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:47,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 12:16:47,139 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:47,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:47,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1463730447, now seen corresponding path program 2 times [2020-09-25 12:16:47,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:47,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [966416196] [2020-09-25 12:16:47,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:47,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:47,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:47,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 12:16:47,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:47,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 12:16:47,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:47,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:16:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:47,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-25 12:16:47,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:47,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:47,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:47,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:47,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:47,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:47,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:47,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:16:47,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:47,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:47,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:47,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:47,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:47,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:47,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:47,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:47,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:16:47,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:47,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-09-25 12:16:47,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:47,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:47,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 12:16:47,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:47,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 12:16:47,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:47,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:47,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:47,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:47,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:47,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:16:47,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:47,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 12:16:47,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:47,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:47,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:16:47,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:47,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:16:47,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 12:16:47,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:47,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:47,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:47,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:47,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:47,719 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:47,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 12:16:47,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:47,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:47,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:47,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:47,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:47,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:47,761 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-25 12:16:47,761 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [966416196] [2020-09-25 12:16:47,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:47,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-25 12:16:47,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902851445] [2020-09-25 12:16:47,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 12:16:47,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:47,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 12:16:47,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-25 12:16:47,766 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand 8 states. [2020-09-25 12:16:47,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:47,862 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2020-09-25 12:16:47,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 12:16:47,863 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2020-09-25 12:16:47,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:47,864 INFO L225 Difference]: With dead ends: 39 [2020-09-25 12:16:47,864 INFO L226 Difference]: Without dead ends: 33 [2020-09-25 12:16:47,865 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:16:47,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-09-25 12:16:47,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-09-25 12:16:47,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-09-25 12:16:47,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-09-25 12:16:47,873 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 32 [2020-09-25 12:16:47,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:47,874 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-09-25 12:16:47,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 12:16:47,874 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-09-25 12:16:47,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-25 12:16:47,875 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:47,876 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:47,876 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 12:16:47,876 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:47,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:47,877 INFO L82 PathProgramCache]: Analyzing trace with hash 23346727, now seen corresponding path program 3 times [2020-09-25 12:16:47,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:47,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601215172] [2020-09-25 12:16:47,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:47,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 12:16:48,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-09-25 12:16:48,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,075 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:16:48,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:48,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 12:16:48,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:48,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:16:48,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:48,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:48,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:16:48,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 155 [2020-09-25 12:16:48,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-09-25 12:16:48,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:48,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-25 12:16:48,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:48,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:16:48,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-09-25 12:16:48,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:16:48,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:48,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:16:48,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:16:48,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 12:16:48,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:16:48,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:48,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:16:48,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:48,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:48,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:16:48,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:48,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:48,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:48,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,552 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-25 12:16:48,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601215172] [2020-09-25 12:16:48,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:48,554 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-09-25 12:16:48,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765063499] [2020-09-25 12:16:48,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 12:16:48,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:48,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 12:16:48,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-25 12:16:48,556 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 9 states. [2020-09-25 12:16:48,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:48,641 INFO L93 Difference]: Finished difference Result 44 states and 45 transitions. [2020-09-25 12:16:48,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-25 12:16:48,642 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 40 [2020-09-25 12:16:48,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:48,643 INFO L225 Difference]: With dead ends: 44 [2020-09-25 12:16:48,644 INFO L226 Difference]: Without dead ends: 38 [2020-09-25 12:16:48,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:16:48,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-09-25 12:16:48,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-09-25 12:16:48,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-09-25 12:16:48,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-09-25 12:16:48,653 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 40 [2020-09-25 12:16:48,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:48,653 INFO L479 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-09-25 12:16:48,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 12:16:48,653 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-09-25 12:16:48,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-25 12:16:48,655 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:48,655 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:48,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 12:16:48,656 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:48,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:48,656 INFO L82 PathProgramCache]: Analyzing trace with hash -649675855, now seen corresponding path program 4 times [2020-09-25 12:16:48,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:48,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155811297] [2020-09-25 12:16:48,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-09-25 12:16:48,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 229 [2020-09-25 12:16:48,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:16:48,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:48,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-25 12:16:48,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:48,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:48,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:48,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:48,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:48,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:16:48,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:48,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:48,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:48,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:48,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:48,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:49,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:49,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:16:49,123 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:49,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-09-25 12:16:49,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:49,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 12:16:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:49,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 12:16:49,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:49,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:49,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:49,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:49,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:16:49,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:49,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 12:16:49,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:49,300 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:16:49,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:49,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:16:49,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:49,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:49,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:49,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:49,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:49,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:16:49,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:49,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-09-25 12:16:49,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:49,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:49,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:16:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:49,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:16:49,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:49,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:49,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:49,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:49,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:16:49,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:49,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 12:16:49,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:49,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:49,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:16:49,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:49,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:16:49,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:49,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:49,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:49,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:49,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:49,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:49,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:49,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:16:49,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:49,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:49,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:49,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:49,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:49,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:49,574 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 2 proven. 46 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 12:16:49,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155811297] [2020-09-25 12:16:49,574 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:49,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 12:16:49,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341265127] [2020-09-25 12:16:49,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 12:16:49,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:49,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 12:16:49,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-09-25 12:16:49,576 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 10 states. [2020-09-25 12:16:49,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:49,685 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-25 12:16:49,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 12:16:49,686 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-09-25 12:16:49,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:49,687 INFO L225 Difference]: With dead ends: 49 [2020-09-25 12:16:49,687 INFO L226 Difference]: Without dead ends: 43 [2020-09-25 12:16:49,688 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:16:49,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-09-25 12:16:49,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-09-25 12:16:49,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-09-25 12:16:49,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 44 transitions. [2020-09-25 12:16:49,695 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 44 transitions. Word has length 48 [2020-09-25 12:16:49,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:49,696 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 44 transitions. [2020-09-25 12:16:49,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 12:16:49,696 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 44 transitions. [2020-09-25 12:16:49,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-09-25 12:16:49,698 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:49,698 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:49,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 12:16:49,698 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:49,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:49,699 INFO L82 PathProgramCache]: Analyzing trace with hash 899977063, now seen corresponding path program 5 times [2020-09-25 12:16:49,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:49,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1911528074] [2020-09-25 12:16:49,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:49,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:49,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:50,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-25 12:16:50,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:50,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-09-25 12:16:50,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:50,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:50,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:16:50,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:50,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-25 12:16:50,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:50,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:50,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,021 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:50,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:50,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:50,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:16:50,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:50,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:50,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:50,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:50,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:50,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:50,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:50,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:50,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:50,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 12:16:50,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:50,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-09-25 12:16:50,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:50,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 12:16:50,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:50,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-09-25 12:16:50,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:50,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:50,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:50,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:16:50,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:50,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-09-25 12:16:50,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:50,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:50,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:16:50,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:50,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:16:50,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:50,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:50,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:50,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:50,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:16:50,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:50,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 12:16:50,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:50,676 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:50,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:16:50,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:50,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:16:50,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:50,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:50,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:50,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:16:50,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:50,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 12:16:50,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:50,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:50,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:16:50,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:50,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:16:50,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:50,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:50,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:50,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:16:50,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:50,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 12:16:50,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:50,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:50,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:16:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:50,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:16:50,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:50,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:50,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:50,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:50,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:50,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:50,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:16:50,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:50,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:50,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:50,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:50,954 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 10 proven. 62 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-25 12:16:50,955 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1911528074] [2020-09-25 12:16:50,956 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:50,956 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-25 12:16:50,957 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547181525] [2020-09-25 12:16:50,958 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 12:16:50,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:50,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 12:16:50,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-25 12:16:50,959 INFO L87 Difference]: Start difference. First operand 43 states and 44 transitions. Second operand 11 states. [2020-09-25 12:16:51,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:51,082 INFO L93 Difference]: Finished difference Result 54 states and 55 transitions. [2020-09-25 12:16:51,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 12:16:51,084 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2020-09-25 12:16:51,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:51,085 INFO L225 Difference]: With dead ends: 54 [2020-09-25 12:16:51,085 INFO L226 Difference]: Without dead ends: 48 [2020-09-25 12:16:51,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:16:51,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-25 12:16:51,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-25 12:16:51,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-25 12:16:51,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-09-25 12:16:51,097 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 56 [2020-09-25 12:16:51,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:51,098 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-09-25 12:16:51,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 12:16:51,098 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-09-25 12:16:51,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-09-25 12:16:51,100 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:51,100 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:51,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 12:16:51,100 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:51,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:51,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1000802417, now seen corresponding path program 6 times [2020-09-25 12:16:51,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:51,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [427180671] [2020-09-25 12:16:51,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:51,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:51,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:51,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:51,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 12:16:51,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-09-25 12:16:51,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:51,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:16:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:51,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-09-25 12:16:51,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:51,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:51,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:51,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:51,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:51,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:51,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:51,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:16:51,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:51,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:51,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:51,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:51,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:51,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:51,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:51,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:51,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:51,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:51,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:16:51,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:51,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-09-25 12:16:51,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:51,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 12:16:51,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:51,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 12:16:51,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:51,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:51,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:51,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:52,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:52,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 12:16:52,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:52,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-25 12:16:52,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:52,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:52,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 12:16:52,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:52,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:16:52,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:52,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:52,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:52,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:52,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:52,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:16:52,327 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:52,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 12:16:52,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:52,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:16:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:52,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:16:52,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:52,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:52,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:52,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:52,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:16:52,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:52,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 12:16:52,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:52,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:16:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:52,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:16:52,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:52,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:52,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:52,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:52,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:16:52,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:52,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-09-25 12:16:52,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:52,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:52,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:16:52,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:52,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:16:52,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:52,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:52,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:52,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:52,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:16:52,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:52,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 12:16:52,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:52,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:52,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:16:52,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:52,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:16:52,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:52,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:52,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:52,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:52,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:52,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:52,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:52,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:16:52,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:52,697 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:52,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:52,697 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:52,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:52,698 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:52,752 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 10 proven. 103 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-25 12:16:52,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [427180671] [2020-09-25 12:16:52,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:52,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 12:16:52,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844754330] [2020-09-25 12:16:52,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 12:16:52,754 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:52,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 12:16:52,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:16:52,755 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 13 states. [2020-09-25 12:16:52,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:52,892 INFO L93 Difference]: Finished difference Result 59 states and 60 transitions. [2020-09-25 12:16:52,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 12:16:52,892 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 64 [2020-09-25 12:16:52,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:52,894 INFO L225 Difference]: With dead ends: 59 [2020-09-25 12:16:52,894 INFO L226 Difference]: Without dead ends: 53 [2020-09-25 12:16:52,895 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 12:16:52,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-09-25 12:16:52,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-09-25 12:16:52,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-09-25 12:16:52,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-09-25 12:16:52,901 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 64 [2020-09-25 12:16:52,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:52,901 INFO L479 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-09-25 12:16:52,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 12:16:52,902 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-09-25 12:16:52,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 12:16:52,908 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:52,908 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:52,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 12:16:52,908 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:52,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:52,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1977618599, now seen corresponding path program 7 times [2020-09-25 12:16:52,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:52,910 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1433626784] [2020-09-25 12:16:52,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:52,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:52,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:53,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-09-25 12:16:53,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:53,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-09-25 12:16:53,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:53,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:53,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 12:16:53,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:53,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-09-25 12:16:53,379 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:53,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:53,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:53,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:53,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:53,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:53,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:16:53,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:53,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:53,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:53,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:53,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:53,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:53,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:53,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:53,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:53,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:53,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 12:16:53,846 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:53,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-09-25 12:16:53,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:53,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-09-25 12:16:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:53,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 12:16:53,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:53,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:53,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:54,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:54,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:16:54,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:54,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-09-25 12:16:54,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:54,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:54,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:16:54,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:54,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 12:16:54,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:54,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:54,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:54,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:54,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 12:16:54,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:54,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-09-25 12:16:54,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:54,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 12:16:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:54,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:16:54,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:54,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:54,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:54,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:54,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:16:54,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:54,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-09-25 12:16:54,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:54,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:54,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:16:54,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:54,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:16:54,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:54,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:54,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:54,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:54,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:16:54,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:54,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 124 [2020-09-25 12:16:54,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:54,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:54,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:16:54,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:54,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:16:54,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:54,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:54,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:54,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:55,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:55,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:16:55,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:55,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-09-25 12:16:55,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:55,067 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:55,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:16:55,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:55,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:16:55,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:55,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:55,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:55,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:55,130 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:16:55,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:55,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 12:16:55,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:55,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:55,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:16:55,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:55,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:16:55,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:55,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:55,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:55,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:55,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:55,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:55,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:16:55,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:55,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:55,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:55,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:55,217 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 16 proven. 131 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2020-09-25 12:16:55,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1433626784] [2020-09-25 12:16:55,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:55,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 12:16:55,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240676764] [2020-09-25 12:16:55,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 12:16:55,220 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:55,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 12:16:55,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-09-25 12:16:55,221 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 13 states. [2020-09-25 12:16:55,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:55,365 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-09-25 12:16:55,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 12:16:55,367 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 72 [2020-09-25 12:16:55,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:55,369 INFO L225 Difference]: With dead ends: 64 [2020-09-25 12:16:55,369 INFO L226 Difference]: Without dead ends: 58 [2020-09-25 12:16:55,371 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=272, Unknown=0, NotChecked=0, Total=420 [2020-09-25 12:16:55,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-09-25 12:16:55,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2020-09-25 12:16:55,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-09-25 12:16:55,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 59 transitions. [2020-09-25 12:16:55,382 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 59 transitions. Word has length 72 [2020-09-25 12:16:55,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:55,382 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 59 transitions. [2020-09-25 12:16:55,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 12:16:55,383 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 59 transitions. [2020-09-25 12:16:55,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-09-25 12:16:55,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:55,385 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:55,385 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-25 12:16:55,387 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:55,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:55,387 INFO L82 PathProgramCache]: Analyzing trace with hash 555623729, now seen corresponding path program 8 times [2020-09-25 12:16:55,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:55,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [774673542] [2020-09-25 12:16:55,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:55,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:55,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:55,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-09-25 12:16:55,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:55,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 511 [2020-09-25 12:16:55,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:55,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 12:16:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:55,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-09-25 12:16:55,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:55,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:55,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:55,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:55,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:55,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:55,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:55,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 12:16:55,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:55,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:55,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:55,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:55,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:55,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:55,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:55,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:56,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:56,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 12:16:56,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 498 [2020-09-25 12:16:56,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:56,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-09-25 12:16:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:56,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-09-25 12:16:56,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:56,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:56,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:56,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:56,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 12:16:56,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:56,881 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 392 [2020-09-25 12:16:56,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:56,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:56,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 12:16:56,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:56,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:16:56,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:56,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:56,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:57,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:57,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:16:57,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:57,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 306 [2020-09-25 12:16:57,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:57,232 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:57,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:16:57,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:57,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 12:16:57,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:57,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:57,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:57,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:57,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:57,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 12:16:57,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:57,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 12:16:57,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:57,489 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:57,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 12:16:57,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:57,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:16:57,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:57,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:57,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:57,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:57,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:16:57,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:57,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-09-25 12:16:57,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:57,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:57,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:16:57,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:57,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:16:57,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:57,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:57,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:57,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:57,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:16:57,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:57,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 12:16:57,857 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:57,857 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:57,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:16:57,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:57,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:16:57,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:57,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:57,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:57,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:57,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:57,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:16:57,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:57,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-09-25 12:16:57,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:57,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:16:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:57,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:16:57,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:57,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:57,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:58,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:58,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:58,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:16:58,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:58,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-09-25 12:16:58,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:58,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:58,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:16:58,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:58,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:16:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:58,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:58,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:58,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:58,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:58,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:16:58,127 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:58,127 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-09-25 12:16:58,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:58,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:16:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:58,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:16:58,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:58,211 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 12 proven. 184 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-25 12:16:58,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [774673542] [2020-09-25 12:16:58,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:16:58,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 12:16:58,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224633980] [2020-09-25 12:16:58,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 12:16:58,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:16:58,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 12:16:58,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:16:58,223 INFO L87 Difference]: Start difference. First operand 58 states and 59 transitions. Second operand 15 states. [2020-09-25 12:16:58,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:16:58,402 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-25 12:16:58,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-25 12:16:58,402 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 80 [2020-09-25 12:16:58,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:16:58,404 INFO L225 Difference]: With dead ends: 69 [2020-09-25 12:16:58,404 INFO L226 Difference]: Without dead ends: 63 [2020-09-25 12:16:58,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=358, Unknown=0, NotChecked=0, Total=552 [2020-09-25 12:16:58,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-09-25 12:16:58,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-09-25 12:16:58,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-09-25 12:16:58,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-09-25 12:16:58,417 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 80 [2020-09-25 12:16:58,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:16:58,418 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-09-25 12:16:58,418 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 12:16:58,418 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-09-25 12:16:58,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-09-25 12:16:58,419 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:16:58,420 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:16:58,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-25 12:16:58,420 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:16:58,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:16:58,421 INFO L82 PathProgramCache]: Analyzing trace with hash 777699815, now seen corresponding path program 9 times [2020-09-25 12:16:58,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:16:58,421 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1152116124] [2020-09-25 12:16:58,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:16:58,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:58,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:59,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:59,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-09-25 12:16:59,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:59,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 597 [2020-09-25 12:16:59,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:59,033 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 12:16:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:16:59,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-09-25 12:16:59,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:59,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:16:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:59,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:59,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:59,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:16:59,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:59,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:16:59,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:59,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:59,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:16:59,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:16:59,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:16:59,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:16:59,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:16:59,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:59,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:16:59,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:16:59,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 12:16:59,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:16:59,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 546 [2020-09-25 12:16:59,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:16:59,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:16:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-09-25 12:16:59,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:16:59,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 97 [2020-09-25 12:16:59,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:16:59,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:16:59,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:16:59,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:00,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:00,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 12:17:00,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:00,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 477 [2020-09-25 12:17:00,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:00,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 12:17:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:00,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 12:17:00,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:00,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:00,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:00,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:00,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 12:17:00,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-09-25 12:17:00,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:00,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 12:17:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:17:00,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:00,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:00,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:00,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:00,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:00,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:17:00,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:00,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-09-25 12:17:00,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:00,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:00,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:17:00,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:00,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 12:17:00,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:00,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:00,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:00,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:01,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:01,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 12:17:01,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:01,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-09-25 12:17:01,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:01,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:01,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 12:17:01,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:01,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:17:01,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:01,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:01,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:01,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:01,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:17:01,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:01,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-25 12:17:01,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:01,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:01,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:17:01,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:01,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:17:01,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:01,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:01,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:01,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:01,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:01,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:17:01,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:01,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-09-25 12:17:01,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:01,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:17:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:01,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:17:01,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:01,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:01,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:01,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:01,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:17:01,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:01,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-09-25 12:17:01,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:01,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:01,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:17:01,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:01,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:17:01,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:17:01,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:01,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:01,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:01,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:01,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:17:01,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:01,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-25 12:17:01,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:01,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:01,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:17:01,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:01,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:17:01,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:17:01,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:01,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:01,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:01,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:17:01,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:01,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 12:17:01,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:01,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:01,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:17:01,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:01,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:17:01,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:17:01,732 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 26 proven. 214 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-09-25 12:17:01,732 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1152116124] [2020-09-25 12:17:01,732 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:17:01,733 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-25 12:17:01,733 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437993397] [2020-09-25 12:17:01,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-25 12:17:01,734 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:17:01,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-25 12:17:01,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-09-25 12:17:01,735 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 15 states. [2020-09-25 12:17:01,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:17:01,878 INFO L93 Difference]: Finished difference Result 74 states and 75 transitions. [2020-09-25 12:17:01,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-25 12:17:01,878 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 88 [2020-09-25 12:17:01,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:17:01,879 INFO L225 Difference]: With dead ends: 74 [2020-09-25 12:17:01,880 INFO L226 Difference]: Without dead ends: 68 [2020-09-25 12:17:01,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=387, Unknown=0, NotChecked=0, Total=600 [2020-09-25 12:17:01,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-25 12:17:01,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-09-25 12:17:01,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-09-25 12:17:01,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-09-25 12:17:01,887 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 88 [2020-09-25 12:17:01,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:17:01,887 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-09-25 12:17:01,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-25 12:17:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-09-25 12:17:01,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-09-25 12:17:01,888 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:17:01,889 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:17:01,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-25 12:17:01,889 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:17:01,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:17:01,889 INFO L82 PathProgramCache]: Analyzing trace with hash 2145915377, now seen corresponding path program 10 times [2020-09-25 12:17:01,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:17:01,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750045683] [2020-09-25 12:17:01,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:17:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:01,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:02,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:02,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-09-25 12:17:02,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:02,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 635 [2020-09-25 12:17:02,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:02,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:02,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 12:17:02,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:17:02,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 12:17:02,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:02,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:17:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:02,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:02,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:02,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:17:02,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:02,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:17:02,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:02,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:02,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:17:02,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:02,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:17:02,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:02,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:17:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:02,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:03,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:03,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 12:17:03,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:03,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 634 [2020-09-25 12:17:03,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:03,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:03,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-09-25 12:17:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:17:03,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 107 [2020-09-25 12:17:03,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:03,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:03,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:03,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:03,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 12:17:03,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:03,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-09-25 12:17:03,827 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:03,827 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:03,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 12:17:03,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:03,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 12:17:03,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:03,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:03,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:04,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:04,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 12:17:04,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:04,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-09-25 12:17:04,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:04,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 12:17:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:04,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 12:17:04,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:04,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:04,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:04,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:04,691 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:04,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 12:17:04,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:04,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 331 [2020-09-25 12:17:04,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:04,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:04,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 12:17:04,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:04,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:17:04,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:04,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:04,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:04,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:04,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:17:04,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:04,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 254 [2020-09-25 12:17:04,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:04,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:17:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:04,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 12:17:04,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:04,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:05,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:05,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:05,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:05,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 12:17:05,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:05,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 188 [2020-09-25 12:17:05,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:05,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:05,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 12:17:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:05,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:17:05,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:05,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:05,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:05,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:05,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:05,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:17:05,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:05,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-09-25 12:17:05,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:05,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:05,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:17:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:05,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:17:05,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:05,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:05,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:05,482 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:05,482 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:17:05,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:05,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 12:17:05,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:05,483 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:05,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:17:05,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:05,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:17:05,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:05,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:05,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:05,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:05,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:05,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:17:05,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:05,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 12:17:05,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:05,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:17:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:05,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:17:05,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:05,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:05,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:05,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:05,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:17:05,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:05,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-25 12:17:05,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:05,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:05,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:17:05,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:05,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:17:05,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:05,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:05,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:05,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:05,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:17:05,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:05,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:17:05,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:05,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:05,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:17:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:17:05,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:05,734 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 27 proven. 267 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-09-25 12:17:05,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750045683] [2020-09-25 12:17:05,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:17:05,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-25 12:17:05,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462295716] [2020-09-25 12:17:05,735 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-25 12:17:05,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:17:05,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-25 12:17:05,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-09-25 12:17:05,736 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 16 states. [2020-09-25 12:17:05,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:17:05,895 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-09-25 12:17:05,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 12:17:05,896 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 96 [2020-09-25 12:17:05,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:17:05,897 INFO L225 Difference]: With dead ends: 79 [2020-09-25 12:17:05,897 INFO L226 Difference]: Without dead ends: 73 [2020-09-25 12:17:05,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=250, Invalid=452, Unknown=0, NotChecked=0, Total=702 [2020-09-25 12:17:05,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-09-25 12:17:05,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2020-09-25 12:17:05,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-09-25 12:17:05,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 74 transitions. [2020-09-25 12:17:05,904 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 74 transitions. Word has length 96 [2020-09-25 12:17:05,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:17:05,905 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 74 transitions. [2020-09-25 12:17:05,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-25 12:17:05,905 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 74 transitions. [2020-09-25 12:17:05,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-09-25 12:17:05,906 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:17:05,906 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:17:05,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-25 12:17:05,907 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:17:05,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:17:05,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1180214055, now seen corresponding path program 11 times [2020-09-25 12:17:05,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:17:05,907 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978207848] [2020-09-25 12:17:05,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:17:05,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:05,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:06,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:06,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-09-25 12:17:06,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:06,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 673 [2020-09-25 12:17:06,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:06,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:06,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 12:17:06,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:17:06,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 12:17:06,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:06,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:17:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:06,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:06,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:06,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:17:06,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:06,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:17:06,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:06,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:17:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:06,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:17:06,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:06,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:17:06,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:06,652 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:07,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:07,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 12:17:07,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:07,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 796 [2020-09-25 12:17:07,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:07,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:07,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-09-25 12:17:07,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:17:07,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-09-25 12:17:07,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:07,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:07,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:07,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:08,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:08,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 12:17:08,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:08,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 577 [2020-09-25 12:17:08,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:08,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:08,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 12:17:08,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:08,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 12:17:08,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:08,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:08,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:08,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:08,607 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:08,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 12:17:08,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:08,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 529 [2020-09-25 12:17:08,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:08,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 12:17:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:08,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 12:17:08,609 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:08,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:08,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:08,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:09,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:09,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 12:17:09,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:09,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 413 [2020-09-25 12:17:09,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:09,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 12:17:09,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:09,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 12:17:09,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:09,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:09,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:09,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:09,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 12:17:09,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:09,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 12:17:09,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:09,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 12:17:09,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:09,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:17:09,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:09,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:09,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:09,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:09,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:09,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:17:09,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:09,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 294 [2020-09-25 12:17:09,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:09,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:09,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:17:09,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:09,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 12:17:09,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:09,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:09,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:09,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:09,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:09,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 12:17:09,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:09,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 223 [2020-09-25 12:17:09,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:09,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 12:17:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:09,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:17:09,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:10,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:10,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:10,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:10,147 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:10,147 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:17:10,147 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:10,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 12:17:10,148 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:10,148 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:17:10,148 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:10,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:17:10,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:10,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:10,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:10,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:10,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:10,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:17:10,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:10,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-09-25 12:17:10,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:10,294 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:17:10,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:10,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:17:10,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:10,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:10,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:10,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:10,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:10,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:17:10,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:10,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-09-25 12:17:10,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:10,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:17:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:10,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:17:10,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:10,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:10,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:10,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:10,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:10,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:17:10,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:10,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 12:17:10,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:10,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:10,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:17:10,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:10,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:17:10,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:10,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:10,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:10,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:10,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:17:10,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:10,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 12:17:10,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:10,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:17:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:10,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:17:10,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:10,578 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 11 proven. 297 refuted. 0 times theorem prover too weak. 176 trivial. 0 not checked. [2020-09-25 12:17:10,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978207848] [2020-09-25 12:17:10,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:17:10,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-09-25 12:17:10,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747174128] [2020-09-25 12:17:10,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-25 12:17:10,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:17:10,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-25 12:17:10,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=174, Unknown=0, NotChecked=0, Total=272 [2020-09-25 12:17:10,581 INFO L87 Difference]: Start difference. First operand 73 states and 74 transitions. Second operand 17 states. [2020-09-25 12:17:10,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:17:10,782 INFO L93 Difference]: Finished difference Result 84 states and 85 transitions. [2020-09-25 12:17:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 12:17:10,782 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 104 [2020-09-25 12:17:10,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:17:10,784 INFO L225 Difference]: With dead ends: 84 [2020-09-25 12:17:10,784 INFO L226 Difference]: Without dead ends: 78 [2020-09-25 12:17:10,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=290, Invalid=522, Unknown=0, NotChecked=0, Total=812 [2020-09-25 12:17:10,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-25 12:17:10,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-09-25 12:17:10,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-09-25 12:17:10,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 79 transitions. [2020-09-25 12:17:10,794 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 79 transitions. Word has length 104 [2020-09-25 12:17:10,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:17:10,794 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 79 transitions. [2020-09-25 12:17:10,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-25 12:17:10,795 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 79 transitions. [2020-09-25 12:17:10,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-09-25 12:17:10,796 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:17:10,796 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:17:10,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-25 12:17:10,797 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:17:10,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:17:10,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1287598415, now seen corresponding path program 12 times [2020-09-25 12:17:10,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:17:10,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663105026] [2020-09-25 12:17:10,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:17:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:10,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:11,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:11,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-09-25 12:17:11,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:11,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 810 [2020-09-25 12:17:11,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:11,628 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 12:17:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:17:11,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 12:17:11,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:11,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:17:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:11,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:11,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:11,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:17:11,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:11,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:17:11,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:11,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:11,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:17:11,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:11,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:17:11,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:11,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:17:11,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:11,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:12,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:12,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 12:17:12,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:12,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 857 [2020-09-25 12:17:12,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:12,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-09-25 12:17:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:17:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 127 [2020-09-25 12:17:12,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:12,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:12,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:13,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:13,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 12:17:13,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:13,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 646 [2020-09-25 12:17:13,212 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:13,212 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 12:17:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:13,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 12:17:13,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:13,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:13,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:13,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:13,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 12:17:13,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:13,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 522 [2020-09-25 12:17:13,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:13,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:13,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 12:17:13,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:13,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 12:17:13,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:13,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:13,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:13,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:14,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:14,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 12:17:14,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:14,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 474 [2020-09-25 12:17:14,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:14,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:14,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 12:17:14,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:14,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 12:17:14,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:14,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:14,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:14,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:14,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 12:17:14,702 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:14,702 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 379 [2020-09-25 12:17:14,702 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:14,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 12:17:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:14,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 12:17:14,703 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:14,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:14,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:14,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:15,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:15,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 12:17:15,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:15,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-09-25 12:17:15,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:15,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 12:17:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:15,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:17:15,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:15,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:15,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:15,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:15,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:17:15,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:15,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 287 [2020-09-25 12:17:15,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:15,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:15,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:17:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:15,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 12:17:15,404 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:15,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:15,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:15,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:15,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:15,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 12:17:15,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:15,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 12:17:15,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:15,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:15,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 12:17:15,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:15,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:17:15,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:17:15,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:15,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:15,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:15,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:15,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:17:15,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:15,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-09-25 12:17:15,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:15,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:15,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:17:15,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:15,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:17:15,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 12:17:15,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:15,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:16,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:16,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:17:16,062 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:16,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-09-25 12:17:16,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:16,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:16,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:17:16,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:16,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:17:16,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:17:16,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:16,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:16,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:16,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:16,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:17:16,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:16,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-25 12:17:16,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:16,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:17:16,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:16,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:17:16,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:17:16,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:16,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:16,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:16,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:16,302 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:17:16,302 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:16,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-09-25 12:17:16,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:16,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:16,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:17:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:16,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:17:16,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:17:16,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:16,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:16,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:16,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:16,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:17:16,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:16,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 12:17:16,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:16,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:16,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:17:16,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:16,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:17:16,356 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 12:17:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 22 proven. 374 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2020-09-25 12:17:16,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663105026] [2020-09-25 12:17:16,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:17:16,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-25 12:17:16,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519057917] [2020-09-25 12:17:16,444 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-25 12:17:16,444 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:17:16,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-25 12:17:16,445 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=194, Unknown=0, NotChecked=0, Total=306 [2020-09-25 12:17:16,446 INFO L87 Difference]: Start difference. First operand 78 states and 79 transitions. Second operand 18 states. [2020-09-25 12:17:16,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:17:16,645 INFO L93 Difference]: Finished difference Result 89 states and 90 transitions. [2020-09-25 12:17:16,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 12:17:16,646 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 112 [2020-09-25 12:17:16,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:17:16,647 INFO L225 Difference]: With dead ends: 89 [2020-09-25 12:17:16,647 INFO L226 Difference]: Without dead ends: 83 [2020-09-25 12:17:16,648 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=333, Invalid=597, Unknown=0, NotChecked=0, Total=930 [2020-09-25 12:17:16,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-09-25 12:17:16,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-09-25 12:17:16,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-09-25 12:17:16,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-09-25 12:17:16,654 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 112 [2020-09-25 12:17:16,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:17:16,655 INFO L479 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-09-25 12:17:16,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-25 12:17:16,655 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-09-25 12:17:16,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-09-25 12:17:16,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:17:16,656 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:17:16,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-25 12:17:16,656 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:17:16,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:17:16,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1612559463, now seen corresponding path program 13 times [2020-09-25 12:17:16,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:17:16,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087840053] [2020-09-25 12:17:16,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:17:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:16,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:17,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:17,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-09-25 12:17:17,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:17,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 888 [2020-09-25 12:17:17,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:17,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:17,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 12:17:17,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:17:17,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-09-25 12:17:17,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:17,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:17:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:17,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:17,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:17,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:17:17,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:17,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:17:17,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:17,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:17,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:17:17,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:17,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:17:17,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:17,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:17:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:17,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:18,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:18,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 12:17:18,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:18,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 812 [2020-09-25 12:17:18,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:18,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:18,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-09-25 12:17:18,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:17:18,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-25 12:17:18,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:18,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:18,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:19,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:19,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 12:17:19,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:19,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 837 [2020-09-25 12:17:19,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:19,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 12:17:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 12:17:19,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:19,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:19,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:19,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:19,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 12:17:19,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:19,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 645 [2020-09-25 12:17:19,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:19,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:19,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 12:17:19,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:19,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 12:17:19,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:20,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:20,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:20,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:20,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:20,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 12:17:20,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:20,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 536 [2020-09-25 12:17:20,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:20,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:20,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 12:17:20,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:20,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 12:17:20,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:20,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:20,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:21,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:21,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 12:17:21,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:21,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-09-25 12:17:21,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:21,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 12:17:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:21,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 12:17:21,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:21,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:21,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:21,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:21,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:21,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 12:17:21,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:21,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-09-25 12:17:21,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:21,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:21,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 12:17:21,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:21,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 12:17:21,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:21,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:21,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:21,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:21,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 12:17:21,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:21,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-09-25 12:17:21,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:21,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 12:17:21,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:21,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:17:21,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:21,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:21,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:22,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:22,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:17:22,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:22,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-09-25 12:17:22,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:22,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:22,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:17:22,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:22,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 12:17:22,084 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:22,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:22,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:22,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:22,294 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:22,294 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 12:17:22,294 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:22,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 180 [2020-09-25 12:17:22,295 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:22,295 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:22,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 12:17:22,295 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:22,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:17:22,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:22,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:22,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:22,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:22,453 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:17:22,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:22,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 12:17:22,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:22,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:17:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:22,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:17:22,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:22,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:22,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:22,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:22,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:22,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:17:22,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:22,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-09-25 12:17:22,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:22,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:17:22,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:22,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:17:22,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:22,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:22,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:22,651 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:22,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:17:22,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:22,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-09-25 12:17:22,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:22,652 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:17:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:22,653 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:17:22,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:22,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:22,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:22,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:22,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:17:22,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:22,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-09-25 12:17:22,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:22,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:17:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:22,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:17:22,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:22,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:22,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:22,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:22,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:17:22,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:22,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 12:17:22,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:22,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:17:22,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:22,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:17:22,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:22,853 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 25 proven. 488 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2020-09-25 12:17:22,854 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087840053] [2020-09-25 12:17:22,854 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:17:22,854 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 12:17:22,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806147855] [2020-09-25 12:17:22,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 12:17:22,855 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:17:22,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 12:17:22,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=247, Unknown=0, NotChecked=0, Total=380 [2020-09-25 12:17:22,856 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 20 states. [2020-09-25 12:17:23,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:17:23,121 INFO L93 Difference]: Finished difference Result 94 states and 95 transitions. [2020-09-25 12:17:23,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-25 12:17:23,122 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 120 [2020-09-25 12:17:23,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:17:23,123 INFO L225 Difference]: With dead ends: 94 [2020-09-25 12:17:23,123 INFO L226 Difference]: Without dead ends: 88 [2020-09-25 12:17:23,124 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=399, Invalid=723, Unknown=0, NotChecked=0, Total=1122 [2020-09-25 12:17:23,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-09-25 12:17:23,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2020-09-25 12:17:23,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2020-09-25 12:17:23,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 89 transitions. [2020-09-25 12:17:23,129 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 89 transitions. Word has length 120 [2020-09-25 12:17:23,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:17:23,129 INFO L479 AbstractCegarLoop]: Abstraction has 88 states and 89 transitions. [2020-09-25 12:17:23,129 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 12:17:23,130 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 89 transitions. [2020-09-25 12:17:23,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-09-25 12:17:23,131 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:17:23,131 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:17:23,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-25 12:17:23,132 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:17:23,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:17:23,132 INFO L82 PathProgramCache]: Analyzing trace with hash 996432753, now seen corresponding path program 14 times [2020-09-25 12:17:23,132 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:17:23,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469929163] [2020-09-25 12:17:23,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:17:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:23,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:24,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:24,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-09-25 12:17:24,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:24,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 944 [2020-09-25 12:17:24,093 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:24,093 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 12:17:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-09-25 12:17:24,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:17:24,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:24,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:17:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:24,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:24,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:24,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:17:24,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:17:24,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:24,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:17:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:24,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:17:24,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:24,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:17:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:24,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:25,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:25,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 12:17:25,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:25,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 968 [2020-09-25 12:17:25,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:25,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:25,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-09-25 12:17:25,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 12:17:25,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 147 [2020-09-25 12:17:25,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:25,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:25,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:26,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:26,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 12:17:26,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:26,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 861 [2020-09-25 12:17:26,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:26,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 12:17:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:26,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-09-25 12:17:26,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:26,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:26,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:26,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:26,811 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:26,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 12:17:26,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:26,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 760 [2020-09-25 12:17:26,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:26,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:26,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 12:17:26,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:26,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-09-25 12:17:26,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:26,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:26,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:27,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:27,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 12:17:27,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:27,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 659 [2020-09-25 12:17:27,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:27,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:27,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 12:17:27,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:27,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-09-25 12:17:27,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:27,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:27,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:27,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:28,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:28,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 12:17:28,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:28,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-09-25 12:17:28,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:28,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:28,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 12:17:28,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:28,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 12:17:28,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:28,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:28,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:28,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:28,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 12:17:28,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:28,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-09-25 12:17:28,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:28,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:28,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 12:17:28,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:28,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 12:17:28,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:28,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:28,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:28,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:28,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 12:17:28,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:28,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 376 [2020-09-25 12:17:28,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:28,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:28,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 12:17:28,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:28,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 12:17:28,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:29,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:29,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:29,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:29,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:29,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 12:17:29,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:29,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-09-25 12:17:29,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:29,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 12:17:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:29,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 12:17:29,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:29,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:29,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:29,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:29,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:29,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:17:29,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:29,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-09-25 12:17:29,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:29,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:17:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:29,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-09-25 12:17:29,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:29,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:29,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:29,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:29,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:29,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 12:17:29,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:29,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 161 [2020-09-25 12:17:29,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:29,759 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:29,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 12:17:29,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:29,760 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-09-25 12:17:29,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:29,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:29,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:29,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:29,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-25 12:17:29,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:29,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-09-25 12:17:29,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:29,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:17:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:29,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-25 12:17:29,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:29,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:29,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:30,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:30,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-09-25 12:17:30,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:30,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-25 12:17:30,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:30,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:30,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 12:17:30,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:30,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 12:17:30,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:30,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:30,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:30,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:30,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:30,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-09-25 12:17:30,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:30,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-09-25 12:17:30,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:30,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:30,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 12:17:30,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:30,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-09-25 12:17:30,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:30,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:30,156 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:30,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:30,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-09-25 12:17:30,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:30,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-25 12:17:30,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:30,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:30,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 12:17:30,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:30,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-09-25 12:17:30,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:30,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:30,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:30,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:30,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:30,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 12:17:30,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:30,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 12:17:30,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:30,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 12:17:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:30,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 12:17:30,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:30,308 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 42 proven. 545 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2020-09-25 12:17:30,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469929163] [2020-09-25 12:17:30,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 12:17:30,309 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-25 12:17:30,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514019786] [2020-09-25 12:17:30,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-25 12:17:30,310 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 12:17:30,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-25 12:17:30,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=237, Unknown=0, NotChecked=0, Total=380 [2020-09-25 12:17:30,310 INFO L87 Difference]: Start difference. First operand 88 states and 89 transitions. Second operand 20 states. [2020-09-25 12:17:30,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 12:17:30,587 INFO L93 Difference]: Finished difference Result 99 states and 100 transitions. [2020-09-25 12:17:30,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 12:17:30,588 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 128 [2020-09-25 12:17:30,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 12:17:30,590 INFO L225 Difference]: With dead ends: 99 [2020-09-25 12:17:30,590 INFO L226 Difference]: Without dead ends: 93 [2020-09-25 12:17:30,591 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=428, Invalid=762, Unknown=0, NotChecked=0, Total=1190 [2020-09-25 12:17:30,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-09-25 12:17:30,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-09-25 12:17:30,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-09-25 12:17:30,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 94 transitions. [2020-09-25 12:17:30,597 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 94 transitions. Word has length 128 [2020-09-25 12:17:30,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 12:17:30,597 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 94 transitions. [2020-09-25 12:17:30,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-25 12:17:30,598 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 94 transitions. [2020-09-25 12:17:30,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-25 12:17:30,599 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 12:17:30,599 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 12:17:30,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-25 12:17:30,600 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 12:17:30,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 12:17:30,600 INFO L82 PathProgramCache]: Analyzing trace with hash 418248103, now seen corresponding path program 15 times [2020-09-25 12:17:30,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 12:17:30,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43637974] [2020-09-25 12:17:30,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 12:17:30,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:30,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:31,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:31,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 12:17:31,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:31,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1344 [2020-09-25 12:17:31,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:31,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:31,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-09-25 12:17:31,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 92 [2020-09-25 12:17:31,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-25 12:17:31,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:32,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 12:17:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:32,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:32,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:32,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 12:17:32,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:32,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 12:17:32,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:32,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:32,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 12:17:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:32,028 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 12:17:32,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:32,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-25 12:17:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:32,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:33,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:33,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-09-25 12:17:33,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:33,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1191 [2020-09-25 12:17:33,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:33,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:33,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-09-25 12:17:33,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:33,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 156 [2020-09-25 12:17:33,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:33,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:33,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:34,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:34,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 151 [2020-09-25 12:17:34,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:34,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1003 [2020-09-25 12:17:34,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:34,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-09-25 12:17:34,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:34,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-09-25 12:17:34,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:34,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:34,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:35,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:35,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-09-25 12:17:35,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:35,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 792 [2020-09-25 12:17:35,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:35,157 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:35,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-09-25 12:17:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-25 12:17:35,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:35,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:35,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:35,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:36,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:36,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-09-25 12:17:36,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:36,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 815 [2020-09-25 12:17:36,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:36,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:36,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-09-25 12:17:36,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:36,042 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 126 [2020-09-25 12:17:36,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 12:17:36,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:36,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:36,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:36,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:36,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-25 12:17:36,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:36,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 785 [2020-09-25 12:17:36,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:36,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:36,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-09-25 12:17:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:36,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 12:17:36,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:36,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:36,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:37,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:37,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-09-25 12:17:37,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:37,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 601 [2020-09-25 12:17:37,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:37,575 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:37,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-09-25 12:17:37,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:37,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-25 12:17:37,576 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:37,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:37,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:37,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:38,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:38,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-09-25 12:17:38,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:38,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 493 [2020-09-25 12:17:38,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:38,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:38,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-09-25 12:17:38,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:38,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-09-25 12:17:38,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:38,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:38,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:38,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:38,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:38,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 12:17:38,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:38,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-09-25 12:17:38,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:38,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:38,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-09-25 12:17:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:38,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-09-25 12:17:38,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:38,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:38,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:38,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:38,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-25 12:17:38,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:38,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-09-25 12:17:38,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:38,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:38,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 12:17:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:38,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 12:17:38,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:39,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:39,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:39,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:39,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:39,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-09-25 12:17:39,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:39,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 214 [2020-09-25 12:17:39,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:39,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 12:17:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:39,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-09-25 12:17:39,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 12:17:39,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:39,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:39,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 12:17:39,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 12:17:39,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-09-25 12:17:39,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 12:17:39,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 163 [2020-09-25 12:17:39,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 12:17:39,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 12:17:39,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 12:17:39,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 12:17:39,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 12:17:39,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 12:17:39,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 12:17:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 12:17:39,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking...