/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_o20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-15 02:11:11,639 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-15 02:11:11,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-15 02:11:11,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-15 02:11:11,687 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-15 02:11:11,698 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-15 02:11:11,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-15 02:11:11,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-15 02:11:11,706 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-15 02:11:11,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-15 02:11:11,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-15 02:11:11,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-15 02:11:11,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-15 02:11:11,715 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-15 02:11:11,718 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-15 02:11:11,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-15 02:11:11,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-15 02:11:11,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-15 02:11:11,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-15 02:11:11,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-15 02:11:11,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-15 02:11:11,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-15 02:11:11,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-15 02:11:11,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-15 02:11:11,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-15 02:11:11,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-15 02:11:11,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-15 02:11:11,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-15 02:11:11,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-15 02:11:11,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-15 02:11:11,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-15 02:11:11,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-15 02:11:11,749 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-15 02:11:11,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-15 02:11:11,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-15 02:11:11,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-15 02:11:11,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-15 02:11:11,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-15 02:11:11,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-15 02:11:11,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-15 02:11:11,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-15 02:11:11,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-15 02:11:11,779 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-15 02:11:11,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-15 02:11:11,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-15 02:11:11,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-15 02:11:11,781 INFO L138 SettingsManager]: * Use SBE=true [2020-10-15 02:11:11,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-15 02:11:11,781 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-15 02:11:11,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-15 02:11:11,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-15 02:11:11,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-15 02:11:11,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-15 02:11:11,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-15 02:11:11,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-15 02:11:11,783 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-15 02:11:11,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-15 02:11:11,783 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-15 02:11:11,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-15 02:11:11,783 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-15 02:11:11,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-15 02:11:11,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-15 02:11:11,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-15 02:11:11,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:11:11,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-15 02:11:11,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-15 02:11:11,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-15 02:11:11,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-15 02:11:11,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-15 02:11:11,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-15 02:11:11,786 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-15 02:11:11,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-15 02:11:12,093 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-15 02:11:12,113 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-15 02:11:12,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-15 02:11:12,123 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-15 02:11:12,124 INFO L275 PluginConnector]: CDTParser initialized [2020-10-15 02:11:12,124 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o20.c [2020-10-15 02:11:12,197 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dd814728/c6954daa665c410c95e5000ac5578f26/FLAGf67fa4ebf [2020-10-15 02:11:12,680 INFO L306 CDTParser]: Found 1 translation units. [2020-10-15 02:11:12,681 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o20.c [2020-10-15 02:11:12,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dd814728/c6954daa665c410c95e5000ac5578f26/FLAGf67fa4ebf [2020-10-15 02:11:13,067 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9dd814728/c6954daa665c410c95e5000ac5578f26 [2020-10-15 02:11:13,075 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-15 02:11:13,076 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-15 02:11:13,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-15 02:11:13,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-15 02:11:13,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-15 02:11:13,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:11:13" (1/1) ... [2020-10-15 02:11:13,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73e797c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:13, skipping insertion in model container [2020-10-15 02:11:13,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 02:11:13" (1/1) ... [2020-10-15 02:11:13,099 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-15 02:11:13,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-15 02:11:13,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:11:13,277 INFO L203 MainTranslator]: Completed pre-run [2020-10-15 02:11:13,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-15 02:11:13,308 INFO L208 MainTranslator]: Completed translation [2020-10-15 02:11:13,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:13 WrapperNode [2020-10-15 02:11:13,309 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-15 02:11:13,309 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-15 02:11:13,310 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-15 02:11:13,310 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-15 02:11:13,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:13" (1/1) ... [2020-10-15 02:11:13,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:13" (1/1) ... [2020-10-15 02:11:13,329 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:13" (1/1) ... [2020-10-15 02:11:13,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:13" (1/1) ... [2020-10-15 02:11:13,423 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:13" (1/1) ... [2020-10-15 02:11:13,425 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:13" (1/1) ... [2020-10-15 02:11:13,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:13" (1/1) ... [2020-10-15 02:11:13,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-15 02:11:13,428 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-15 02:11:13,428 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-15 02:11:13,428 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-15 02:11:13,429 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-15 02:11:13,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-15 02:11:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-15 02:11:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-15 02:11:13,502 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-15 02:11:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-15 02:11:13,502 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-15 02:11:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-15 02:11:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-15 02:11:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-15 02:11:13,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-15 02:11:13,659 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-15 02:11:13,660 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-15 02:11:13,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:11:13 BoogieIcfgContainer [2020-10-15 02:11:13,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-15 02:11:13,665 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-15 02:11:13,666 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-15 02:11:13,669 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-15 02:11:13,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 02:11:13" (1/3) ... [2020-10-15 02:11:13,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2954de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:11:13, skipping insertion in model container [2020-10-15 02:11:13,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 02:11:13" (2/3) ... [2020-10-15 02:11:13,671 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f2954de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 02:11:13, skipping insertion in model container [2020-10-15 02:11:13,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 02:11:13" (3/3) ... [2020-10-15 02:11:13,673 INFO L109 eAbstractionObserver]: Analyzing ICFG id_o20.c [2020-10-15 02:11:13,683 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-15 02:11:13,691 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-15 02:11:13,706 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-15 02:11:13,731 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-15 02:11:13,731 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-15 02:11:13,731 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-15 02:11:13,732 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-15 02:11:13,732 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-15 02:11:13,732 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-15 02:11:13,732 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-15 02:11:13,732 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-15 02:11:13,748 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-15 02:11:13,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-15 02:11:13,754 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:13,755 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:13,756 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:13,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:13,761 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2020-10-15 02:11:13,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:13,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1191756294] [2020-10-15 02:11:13,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:13,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:13,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:13,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-15 02:11:13,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:13,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-15 02:11:13,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:13,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:13,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-15 02:11:13,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-15 02:11:13,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:13,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-15 02:11:14,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:14,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:14,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:14,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:14,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:14,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:14,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:11:14,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:14,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:14,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:14,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:14,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:14,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:14,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:14,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:14,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:14,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:14,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:14,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 02:11:14,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:14,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:14,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:14,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:14,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-15 02:11:14,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1191756294] [2020-10-15 02:11:14,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-15 02:11:14,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-15 02:11:14,188 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038180619] [2020-10-15 02:11:14,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-15 02:11:14,197 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:14,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-15 02:11:14,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:11:14,223 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-10-15 02:11:14,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:14,274 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-10-15 02:11:14,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-15 02:11:14,277 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-15 02:11:14,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:14,289 INFO L225 Difference]: With dead ends: 32 [2020-10-15 02:11:14,290 INFO L226 Difference]: Without dead ends: 18 [2020-10-15 02:11:14,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-15 02:11:14,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-15 02:11:14,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-15 02:11:14,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-15 02:11:14,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2020-10-15 02:11:14,343 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2020-10-15 02:11:14,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:14,344 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2020-10-15 02:11:14,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-15 02:11:14,344 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2020-10-15 02:11:14,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-15 02:11:14,346 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:14,346 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:14,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-15 02:11:14,347 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:14,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:14,348 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2020-10-15 02:11:14,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:14,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563080303] [2020-10-15 02:11:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:14,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:14,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:14,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:14,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-15 02:11:14,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:14,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-15 02:11:14,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:14,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-15 02:11:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-15 02:11:14,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-15 02:11:14,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:14,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:14,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:14,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:14,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:14,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:14,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:14,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:11:14,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:14,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:14,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:14,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:14,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:14,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:14,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:14,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:14,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:14,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:14,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:14,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-15 02:11:14,646 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:14,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:14,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:14,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:14,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:14,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:14,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:14,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:14,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:14,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:14,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:14,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:14,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:11:14,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:14,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:14,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:14,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:14,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:14,752 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-15 02:11:14,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563080303] [2020-10-15 02:11:14,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:14,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-15 02:11:14,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128532611] [2020-10-15 02:11:14,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-15 02:11:14,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:14,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-15 02:11:14,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:11:14,763 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 7 states. [2020-10-15 02:11:14,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:14,811 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2020-10-15 02:11:14,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-15 02:11:14,811 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-10-15 02:11:14,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:14,813 INFO L225 Difference]: With dead ends: 25 [2020-10-15 02:11:14,813 INFO L226 Difference]: Without dead ends: 21 [2020-10-15 02:11:14,814 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-15 02:11:14,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-15 02:11:14,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-15 02:11:14,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-15 02:11:14,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-10-15 02:11:14,822 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2020-10-15 02:11:14,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:14,822 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-10-15 02:11:14,822 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-15 02:11:14,823 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-10-15 02:11:14,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-15 02:11:14,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:14,824 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:14,824 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-15 02:11:14,825 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:14,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:14,825 INFO L82 PathProgramCache]: Analyzing trace with hash 397359997, now seen corresponding path program 2 times [2020-10-15 02:11:14,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:14,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1352841158] [2020-10-15 02:11:14,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:14,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:14,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:14,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-15 02:11:14,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:14,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-15 02:11:14,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:14,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-15 02:11:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-15 02:11:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-15 02:11:14,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:15,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:15,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:15,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:15,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:15,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:15,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:15,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:15,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:15,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:15,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:15,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:15,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:15,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:15,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:15,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:15,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:15,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:15,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:15,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:15,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-15 02:11:15,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:15,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:15,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:15,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:15,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:15,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:15,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:15,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:15,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:11:15,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:15,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:15,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:15,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:15,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:15,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:15,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:15,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:15,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:15,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:11:15,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:15,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:15,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:15,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:15,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:15,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:15,264 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-15 02:11:15,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1352841158] [2020-10-15 02:11:15,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:15,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-15 02:11:15,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689786979] [2020-10-15 02:11:15,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-15 02:11:15,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:15,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-15 02:11:15,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:11:15,268 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 9 states. [2020-10-15 02:11:15,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:15,308 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-15 02:11:15,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-15 02:11:15,308 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-10-15 02:11:15,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:15,310 INFO L225 Difference]: With dead ends: 28 [2020-10-15 02:11:15,310 INFO L226 Difference]: Without dead ends: 24 [2020-10-15 02:11:15,311 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2020-10-15 02:11:15,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2020-10-15 02:11:15,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2020-10-15 02:11:15,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-15 02:11:15,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2020-10-15 02:11:15,317 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2020-10-15 02:11:15,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:15,318 INFO L479 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2020-10-15 02:11:15,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-15 02:11:15,318 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2020-10-15 02:11:15,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-10-15 02:11:15,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:15,320 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:15,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-15 02:11:15,320 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:15,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:15,321 INFO L82 PathProgramCache]: Analyzing trace with hash 1198310127, now seen corresponding path program 3 times [2020-10-15 02:11:15,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:15,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714835060] [2020-10-15 02:11:15,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:15,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:15,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:15,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-15 02:11:15,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:15,544 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-15 02:11:15,544 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:15,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-15 02:11:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-15 02:11:15,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-15 02:11:15,545 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:15,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:15,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:15,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:15,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:15,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:15,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:15,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:15,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:15,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:15,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:15,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:15,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:15,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:15,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:15,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:15,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:15,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-15 02:11:15,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:15,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:15,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:15,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:15,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-15 02:11:15,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:15,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:15,869 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:15,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:15,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:15,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-15 02:11:15,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:15,871 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:15,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:15,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:15,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:15,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:15,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:15,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:15,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:15,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:15,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:15,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:11:15,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:15,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:15,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:15,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:15,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:15,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:15,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:15,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:15,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:15,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:15,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:15,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:15,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:11:15,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:15,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:15,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:15,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:16,007 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-15 02:11:16,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1714835060] [2020-10-15 02:11:16,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:16,008 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-15 02:11:16,008 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744883459] [2020-10-15 02:11:16,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-15 02:11:16,009 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:16,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-15 02:11:16,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:11:16,010 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 11 states. [2020-10-15 02:11:16,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:16,064 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-15 02:11:16,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-15 02:11:16,064 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 31 [2020-10-15 02:11:16,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:16,066 INFO L225 Difference]: With dead ends: 31 [2020-10-15 02:11:16,066 INFO L226 Difference]: Without dead ends: 27 [2020-10-15 02:11:16,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2020-10-15 02:11:16,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-15 02:11:16,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-10-15 02:11:16,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-10-15 02:11:16,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-10-15 02:11:16,073 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2020-10-15 02:11:16,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:16,073 INFO L479 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-10-15 02:11:16,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-15 02:11:16,073 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-10-15 02:11:16,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-15 02:11:16,075 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:16,075 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:16,075 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-15 02:11:16,075 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:16,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:16,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1080764669, now seen corresponding path program 4 times [2020-10-15 02:11:16,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:16,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988423013] [2020-10-15 02:11:16,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:16,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:16,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:16,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:16,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-15 02:11:16,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:16,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 169 [2020-10-15 02:11:16,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:16,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-15 02:11:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-15 02:11:16,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-15 02:11:16,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:16,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:16,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:16,310 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:16,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:16,311 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:16,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:16,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:16,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:16,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:16,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:16,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:16,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:16,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:16,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:16,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:16,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:16,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:16,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-15 02:11:16,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:16,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:16,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:16,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:16,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:16,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:16,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:16,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:16,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:16,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:16,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:16,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-15 02:11:16,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:16,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:16,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:16,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:16,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:16,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:16,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:16,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:16,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:16,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:16,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:16,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-15 02:11:16,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:16,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:16,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:16,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:16,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:16,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:16,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:16,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:16,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:16,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:16,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:16,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-15 02:11:16,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:16,764 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:16,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:16,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:16,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:16,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:16,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:16,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:16,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:16,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:16,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:16,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:16,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-15 02:11:16,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:16,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:16,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:16,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:16,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:16,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:16,861 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-15 02:11:16,862 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988423013] [2020-10-15 02:11:16,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:16,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-15 02:11:16,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488661466] [2020-10-15 02:11:16,863 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-15 02:11:16,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:16,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-15 02:11:16,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:11:16,864 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 13 states. [2020-10-15 02:11:16,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:16,950 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-15 02:11:16,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-15 02:11:16,950 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 37 [2020-10-15 02:11:16,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:16,952 INFO L225 Difference]: With dead ends: 34 [2020-10-15 02:11:16,952 INFO L226 Difference]: Without dead ends: 30 [2020-10-15 02:11:16,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2020-10-15 02:11:16,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-10-15 02:11:16,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-10-15 02:11:16,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-15 02:11:16,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2020-10-15 02:11:16,959 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2020-10-15 02:11:16,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:16,959 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2020-10-15 02:11:16,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-15 02:11:16,959 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2020-10-15 02:11:16,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-10-15 02:11:16,961 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:16,961 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:16,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-15 02:11:16,961 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:16,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:16,962 INFO L82 PathProgramCache]: Analyzing trace with hash -1752970513, now seen corresponding path program 5 times [2020-10-15 02:11:16,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:16,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292409678] [2020-10-15 02:11:16,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:16,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:16,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:17,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:17,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-15 02:11:17,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:17,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 249 [2020-10-15 02:11:17,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:17,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:17,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-15 02:11:17,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-15 02:11:17,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-15 02:11:17,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:17,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:17,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:17,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:17,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:17,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:17,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:11:17,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:17,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:17,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:17,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:17,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:17,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:17,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:17,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:17,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:17,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:17,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:17,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 222 [2020-10-15 02:11:17,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:17,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:17,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:17,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:17,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:11:17,521 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:17,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:17,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:17,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:17,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:17,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:17,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:17,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-15 02:11:17,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:17,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:17,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:17,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:17,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:17,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:17,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:17,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:17,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:17,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:17,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:17,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-15 02:11:17,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:17,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:17,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:17,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:17,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:17,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:11:17,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:17,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:17,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:17,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:17,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:17,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:11:17,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:17,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:17,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:17,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:17,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:17,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:17,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:17,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:18,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:18,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:18,013 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:18,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-15 02:11:18,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:18,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:18,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:18,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:18,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:18,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:18,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:18,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:18,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:18,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:18,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:11:18,068 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:18,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:18,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:18,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:18,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:18,107 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-15 02:11:18,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292409678] [2020-10-15 02:11:18,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:18,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-15 02:11:18,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178593801] [2020-10-15 02:11:18,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-15 02:11:18,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:18,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-15 02:11:18,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:11:18,112 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 15 states. [2020-10-15 02:11:18,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:18,211 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-15 02:11:18,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-15 02:11:18,212 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2020-10-15 02:11:18,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:18,213 INFO L225 Difference]: With dead ends: 37 [2020-10-15 02:11:18,214 INFO L226 Difference]: Without dead ends: 33 [2020-10-15 02:11:18,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-15 02:11:18,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-10-15 02:11:18,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-10-15 02:11:18,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-15 02:11:18,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2020-10-15 02:11:18,220 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2020-10-15 02:11:18,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:18,221 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2020-10-15 02:11:18,221 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-15 02:11:18,221 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2020-10-15 02:11:18,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-10-15 02:11:18,222 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:18,222 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:18,223 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-15 02:11:18,223 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:18,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:18,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1590630787, now seen corresponding path program 6 times [2020-10-15 02:11:18,224 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:18,224 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000079758] [2020-10-15 02:11:18,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:18,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:18,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:18,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:18,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 69 [2020-10-15 02:11:18,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:18,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-15 02:11:18,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:18,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:18,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-15 02:11:18,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-15 02:11:18,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-15 02:11:18,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:18,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:18,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:18,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:18,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:18,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:18,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:18,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:18,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:18,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:18,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:18,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:18,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:18,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:18,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:18,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:18,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:18,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:18,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:18,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 238 [2020-10-15 02:11:18,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:18,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:18,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:11:18,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:18,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:18,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:19,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:19,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:19,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:19,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 186 [2020-10-15 02:11:19,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:19,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:19,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:19,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:19,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:11:19,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:19,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:19,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:19,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:19,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:19,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:19,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:19,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-15 02:11:19,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:19,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:19,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:19,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:19,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:19,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:19,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:19,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:19,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:19,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:19,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-15 02:11:19,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:19,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:19,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:19,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:19,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:19,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:19,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:19,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:19,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:19,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:19,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:19,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-15 02:11:19,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:19,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:19,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:19,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:19,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:19,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:19,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:19,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:19,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:19,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:11:19,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:19,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:19,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:19,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:19,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:19,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:19,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:19,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:19,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:19,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:19,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:19,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:11:19,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:19,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:19,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:19,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:19,567 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-15 02:11:19,568 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000079758] [2020-10-15 02:11:19,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:19,569 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-15 02:11:19,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009047622] [2020-10-15 02:11:19,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-15 02:11:19,570 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:19,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-15 02:11:19,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:11:19,570 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 17 states. [2020-10-15 02:11:19,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:19,694 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-15 02:11:19,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-15 02:11:19,694 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 49 [2020-10-15 02:11:19,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:19,696 INFO L225 Difference]: With dead ends: 40 [2020-10-15 02:11:19,696 INFO L226 Difference]: Without dead ends: 36 [2020-10-15 02:11:19,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2020-10-15 02:11:19,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-15 02:11:19,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-10-15 02:11:19,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-10-15 02:11:19,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 37 transitions. [2020-10-15 02:11:19,702 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 37 transitions. Word has length 49 [2020-10-15 02:11:19,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:19,703 INFO L479 AbstractCegarLoop]: Abstraction has 36 states and 37 transitions. [2020-10-15 02:11:19,703 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-15 02:11:19,703 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 37 transitions. [2020-10-15 02:11:19,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-15 02:11:19,704 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:19,704 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:19,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-15 02:11:19,705 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:19,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:19,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1532150511, now seen corresponding path program 7 times [2020-10-15 02:11:19,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:19,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [951568697] [2020-10-15 02:11:19,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:19,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:19,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:20,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:20,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-15 02:11:20,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:20,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 406 [2020-10-15 02:11:20,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:20,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-15 02:11:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-15 02:11:20,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-15 02:11:20,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:20,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:20,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:20,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:20,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:20,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:20,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:20,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:20,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:20,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:20,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:20,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:20,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:20,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:20,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:20,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:20,545 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:20,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:20,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:20,546 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-15 02:11:20,546 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:20,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:20,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:20,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:20,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:11:20,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:20,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:20,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:20,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:20,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:20,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:20,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-15 02:11:20,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:20,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:20,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:11:20,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:20,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:20,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:20,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:20,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:20,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:20,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:20,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-15 02:11:20,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:21,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:21,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:21,001 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:11:21,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:21,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:21,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:21,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:21,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:21,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:21,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:21,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-15 02:11:21,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:21,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:21,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:21,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:21,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:21,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:21,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:21,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:21,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:21,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:21,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-15 02:11:21,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:21,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:21,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:21,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:21,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:21,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:21,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:21,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:21,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:21,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:21,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:21,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-15 02:11:21,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:21,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:21,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:21,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:21,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:21,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:21,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:21,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:21,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:21,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:21,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:21,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-15 02:11:21,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:21,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:21,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:21,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:21,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:21,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:21,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:21,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:21,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:21,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:21,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-15 02:11:21,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:21,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:21,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:21,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:21,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:21,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:21,555 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-15 02:11:21,556 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [951568697] [2020-10-15 02:11:21,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:21,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-15 02:11:21,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949894631] [2020-10-15 02:11:21,557 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-15 02:11:21,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:21,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-15 02:11:21,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:11:21,558 INFO L87 Difference]: Start difference. First operand 36 states and 37 transitions. Second operand 19 states. [2020-10-15 02:11:21,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:21,708 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-15 02:11:21,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-15 02:11:21,708 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 55 [2020-10-15 02:11:21,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:21,710 INFO L225 Difference]: With dead ends: 43 [2020-10-15 02:11:21,710 INFO L226 Difference]: Without dead ends: 39 [2020-10-15 02:11:21,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=307, Unknown=0, NotChecked=0, Total=342 [2020-10-15 02:11:21,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-15 02:11:21,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-15 02:11:21,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-15 02:11:21,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 40 transitions. [2020-10-15 02:11:21,717 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 40 transitions. Word has length 55 [2020-10-15 02:11:21,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:21,717 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 40 transitions. [2020-10-15 02:11:21,717 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-15 02:11:21,717 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 40 transitions. [2020-10-15 02:11:21,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-10-15 02:11:21,718 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:21,719 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:21,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-15 02:11:21,719 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:21,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:21,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1140618237, now seen corresponding path program 8 times [2020-10-15 02:11:21,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:21,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1071424875] [2020-10-15 02:11:21,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:21,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:22,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:22,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-15 02:11:22,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:22,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 545 [2020-10-15 02:11:22,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:22,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-15 02:11:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-15 02:11:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:22,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:22,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:22,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:22,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:22,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:22,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:22,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:22,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:11:22,325 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:22,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:22,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:22,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:22,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:22,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:22,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:22,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:22,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:22,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:11:22,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:22,748 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 409 [2020-10-15 02:11:22,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:22,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:22,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:11:22,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:22,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:11:22,749 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:22,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:22,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:23,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:23,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:23,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:23,085 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 289 [2020-10-15 02:11:23,085 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:23,085 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:23,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:23,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:23,086 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:11:23,086 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:23,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:23,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:23,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:23,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:23,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:23,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-15 02:11:23,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:23,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:23,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:23,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:23,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:11:23,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:23,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:23,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:23,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:23,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:23,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:23,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-15 02:11:23,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:23,545 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:23,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:23,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:23,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:11:23,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:23,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:23,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:23,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:23,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:23,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:23,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-15 02:11:23,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:23,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:23,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:23,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:23,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:23,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:23,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:23,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:23,787 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:23,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-15 02:11:23,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:23,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:23,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:23,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:23,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:23,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:23,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:23,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:23,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:23,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:23,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:23,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:11:23,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:23,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:23,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:23,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:23,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:23,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:23,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:23,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:23,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:23,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:23,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:23,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:23,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-15 02:11:23,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:23,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:23,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:23,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:23,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:11:24,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:24,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:24,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:24,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:24,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:24,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:11:24,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:24,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:24,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:24,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:24,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:24,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:24,091 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-15 02:11:24,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1071424875] [2020-10-15 02:11:24,092 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:24,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-15 02:11:24,092 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596848869] [2020-10-15 02:11:24,093 INFO L459 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-15 02:11:24,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:24,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-15 02:11:24,094 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:11:24,094 INFO L87 Difference]: Start difference. First operand 39 states and 40 transitions. Second operand 21 states. [2020-10-15 02:11:24,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:24,280 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-15 02:11:24,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-15 02:11:24,281 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 61 [2020-10-15 02:11:24,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:24,282 INFO L225 Difference]: With dead ends: 46 [2020-10-15 02:11:24,282 INFO L226 Difference]: Without dead ends: 42 [2020-10-15 02:11:24,283 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=381, Unknown=0, NotChecked=0, Total=420 [2020-10-15 02:11:24,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-10-15 02:11:24,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-10-15 02:11:24,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-15 02:11:24,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2020-10-15 02:11:24,290 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 61 [2020-10-15 02:11:24,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:24,290 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2020-10-15 02:11:24,290 INFO L480 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-15 02:11:24,290 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2020-10-15 02:11:24,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-10-15 02:11:24,291 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:24,291 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:24,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-15 02:11:24,292 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:24,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:24,292 INFO L82 PathProgramCache]: Analyzing trace with hash -1749177617, now seen corresponding path program 9 times [2020-10-15 02:11:24,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:24,293 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1827209668] [2020-10-15 02:11:24,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:24,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:24,333 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:24,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:24,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-15 02:11:24,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:24,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 520 [2020-10-15 02:11:24,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:24,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-15 02:11:24,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-15 02:11:24,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-15 02:11:24,847 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:24,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:24,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:24,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:24,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:24,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:24,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:24,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:24,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:24,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:24,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:24,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:24,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:24,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:24,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:25,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:25,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:11:25,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:25,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 519 [2020-10-15 02:11:25,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:25,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:25,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:11:25,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:25,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:11:25,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:25,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:25,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:25,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:25,852 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:25,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:11:25,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:25,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 361 [2020-10-15 02:11:25,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:25,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:11:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:25,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:11:25,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:25,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:25,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:25,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:26,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:26,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:26,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:26,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-15 02:11:26,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:26,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:26,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:26,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:11:26,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:26,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:26,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:26,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:26,373 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:26,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:26,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:26,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-15 02:11:26,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:26,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:26,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:11:26,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:26,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:26,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:26,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:26,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:26,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:26,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-15 02:11:26,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:26,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:11:26,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:26,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:26,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:26,703 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:26,704 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:26,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:26,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-15 02:11:26,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:26,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:26,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:26,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:26,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:26,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:26,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:26,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:26,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:26,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:26,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:26,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-15 02:11:26,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:26,810 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:26,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:26,811 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:26,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:26,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:26,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:26,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:26,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:26,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:26,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-15 02:11:26,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:26,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:26,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:26,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:26,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:26,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:26,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:26,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:26,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:26,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:26,969 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:26,969 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:26,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:11:26,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:26,970 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:26,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:26,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:26,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:26,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:27,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:27,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:27,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:27,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:27,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:27,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:27,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:11:27,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:27,044 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:27,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:27,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:27,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:27,103 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-15 02:11:27,103 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1827209668] [2020-10-15 02:11:27,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:27,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-15 02:11:27,104 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160044711] [2020-10-15 02:11:27,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-15 02:11:27,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:27,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-15 02:11:27,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:11:27,106 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 23 states. [2020-10-15 02:11:27,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:27,333 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-15 02:11:27,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-15 02:11:27,333 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 67 [2020-10-15 02:11:27,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:27,334 INFO L225 Difference]: With dead ends: 49 [2020-10-15 02:11:27,335 INFO L226 Difference]: Without dead ends: 45 [2020-10-15 02:11:27,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=463, Unknown=0, NotChecked=0, Total=506 [2020-10-15 02:11:27,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-15 02:11:27,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-10-15 02:11:27,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-10-15 02:11:27,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 46 transitions. [2020-10-15 02:11:27,348 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 46 transitions. Word has length 67 [2020-10-15 02:11:27,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:27,348 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 46 transitions. [2020-10-15 02:11:27,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-15 02:11:27,348 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 46 transitions. [2020-10-15 02:11:27,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-15 02:11:27,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:27,353 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:27,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-15 02:11:27,353 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:27,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:27,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1580609155, now seen corresponding path program 10 times [2020-10-15 02:11:27,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:27,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1336456395] [2020-10-15 02:11:27,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:27,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:27,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:27,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:27,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-15 02:11:27,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:27,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 594 [2020-10-15 02:11:27,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:27,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-15 02:11:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-15 02:11:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-15 02:11:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:28,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:28,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:28,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:28,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:28,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:28,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:11:28,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:28,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:28,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:28,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:28,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:11:28,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:28,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:28,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:28,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:28,591 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:11:28,591 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:28,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 560 [2020-10-15 02:11:28,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:28,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:11:28,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:28,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:11:28,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:28,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:28,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:28,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:29,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:29,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:11:29,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:29,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 610 [2020-10-15 02:11:29,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:29,257 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:11:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:29,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:11:29,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:29,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:29,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:29,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:29,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:11:29,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:29,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-10-15 02:11:29,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:29,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:29,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:11:29,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:29,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:11:29,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:29,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:29,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:29,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:29,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:29,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:29,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-15 02:11:29,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:29,935 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:29,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:29,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:11:29,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:29,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:30,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:30,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:30,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:30,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:30,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-15 02:11:30,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:30,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:30,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:11:30,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:30,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:30,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:30,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:30,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:30,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:30,311 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:30,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-15 02:11:30,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:30,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:30,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:30,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:11:30,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:11:30,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:30,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:30,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:30,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:30,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:30,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-15 02:11:30,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:30,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:30,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:30,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:30,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:30,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:30,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:30,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:30,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:30,607 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:30,607 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:30,608 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-15 02:11:30,608 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:30,608 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:30,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:30,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:30,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:30,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:11:30,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:30,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:30,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:30,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:30,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:30,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-15 02:11:30,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:30,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:30,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:30,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:30,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:30,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:30,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:30,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:30,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:30,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:30,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:30,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-15 02:11:30,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:30,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:30,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:30,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:30,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:30,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:30,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:30,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:30,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:30,881 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:30,881 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:30,881 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:30,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:11:30,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:30,882 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:30,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:30,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:30,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:30,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:30,946 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-15 02:11:30,947 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1336456395] [2020-10-15 02:11:30,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:30,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-15 02:11:30,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795510880] [2020-10-15 02:11:30,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-15 02:11:30,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:30,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-15 02:11:30,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:11:30,949 INFO L87 Difference]: Start difference. First operand 45 states and 46 transitions. Second operand 25 states. [2020-10-15 02:11:31,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:31,197 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-15 02:11:31,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-15 02:11:31,198 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 73 [2020-10-15 02:11:31,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:31,199 INFO L225 Difference]: With dead ends: 52 [2020-10-15 02:11:31,199 INFO L226 Difference]: Without dead ends: 48 [2020-10-15 02:11:31,200 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=47, Invalid=553, Unknown=0, NotChecked=0, Total=600 [2020-10-15 02:11:31,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-15 02:11:31,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-15 02:11:31,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-15 02:11:31,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 49 transitions. [2020-10-15 02:11:31,206 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 49 transitions. Word has length 73 [2020-10-15 02:11:31,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:31,207 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 49 transitions. [2020-10-15 02:11:31,207 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-15 02:11:31,207 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 49 transitions. [2020-10-15 02:11:31,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-15 02:11:31,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:31,208 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:31,208 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-15 02:11:31,209 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:31,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:31,209 INFO L82 PathProgramCache]: Analyzing trace with hash -223837457, now seen corresponding path program 11 times [2020-10-15 02:11:31,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:31,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770561124] [2020-10-15 02:11:31,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:31,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:31,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:32,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:32,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-15 02:11:32,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:32,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 939 [2020-10-15 02:11:32,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:32,164 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:32,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-15 02:11:32,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-15 02:11:32,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-15 02:11:32,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:32,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:32,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:32,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:32,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:32,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:32,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:32,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:11:32,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:32,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:32,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:32,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:32,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:32,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:32,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:32,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:32,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:32,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:11:32,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:32,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-10-15 02:11:32,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:32,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:32,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:11:32,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:32,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:11:32,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:32,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:32,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:33,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:33,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:11:33,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:33,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 641 [2020-10-15 02:11:33,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:33,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:33,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:11:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:33,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:11:33,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:33,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:33,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:33,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:33,939 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:11:33,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:33,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-15 02:11:33,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:33,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:33,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:11:33,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:33,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:11:33,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:33,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:33,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:33,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:34,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:34,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:11:34,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:34,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 301 [2020-10-15 02:11:34,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:34,289 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:11:34,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:34,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:11:34,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:34,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:34,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:34,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:34,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:34,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:34,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-15 02:11:34,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:34,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:34,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:11:34,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:34,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:34,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:34,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:34,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:34,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:34,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:34,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-15 02:11:34,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:34,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:34,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:34,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:11:34,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:34,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:34,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:34,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:35,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:35,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:35,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:35,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-15 02:11:35,015 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:35,015 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:35,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:35,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:35,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:11:35,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:35,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:35,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:35,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:35,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:35,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:35,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:35,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-15 02:11:35,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:35,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:35,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:35,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:35,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:11:35,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:35,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:35,272 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:35,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:35,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:35,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:35,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 02:11:35,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:35,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:35,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:35,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:35,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:35,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:35,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:35,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:35,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:35,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:35,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:11:35,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:35,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:35,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:35,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:35,401 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:35,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:35,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:35,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:35,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:35,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:35,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:35,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-15 02:11:35,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:35,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:35,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:35,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:35,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:35,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:35,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:35,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:35,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:35,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:35,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:35,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:35,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:11:35,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:35,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:35,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:35,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:35,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:35,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:35,635 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-10-15 02:11:35,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770561124] [2020-10-15 02:11:35,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:35,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-15 02:11:35,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832842378] [2020-10-15 02:11:35,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-15 02:11:35,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:35,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-15 02:11:35,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:11:35,638 INFO L87 Difference]: Start difference. First operand 48 states and 49 transitions. Second operand 27 states. [2020-10-15 02:11:35,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:35,991 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-15 02:11:35,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-15 02:11:35,992 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 79 [2020-10-15 02:11:35,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:35,994 INFO L225 Difference]: With dead ends: 55 [2020-10-15 02:11:35,994 INFO L226 Difference]: Without dead ends: 51 [2020-10-15 02:11:35,998 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=51, Invalid=651, Unknown=0, NotChecked=0, Total=702 [2020-10-15 02:11:35,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-15 02:11:36,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2020-10-15 02:11:36,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2020-10-15 02:11:36,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 52 transitions. [2020-10-15 02:11:36,008 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 52 transitions. Word has length 79 [2020-10-15 02:11:36,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:36,012 INFO L479 AbstractCegarLoop]: Abstraction has 51 states and 52 transitions. [2020-10-15 02:11:36,012 INFO L480 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-15 02:11:36,012 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 52 transitions. [2020-10-15 02:11:36,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-15 02:11:36,014 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:36,018 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:36,018 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-15 02:11:36,019 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:36,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:36,019 INFO L82 PathProgramCache]: Analyzing trace with hash 1653931773, now seen corresponding path program 12 times [2020-10-15 02:11:36,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:36,020 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913669341] [2020-10-15 02:11:36,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:36,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:36,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:37,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:37,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-15 02:11:37,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:37,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 968 [2020-10-15 02:11:37,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:37,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:37,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-15 02:11:37,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 75 [2020-10-15 02:11:37,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-15 02:11:37,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-15 02:11:37,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:37,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:37,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:37,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:37,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:37,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:11:37,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:37,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:37,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:37,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:37,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:37,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:37,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:37,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:37,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:37,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:11:37,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:37,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 783 [2020-10-15 02:11:37,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:37,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:11:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:37,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 02:11:37,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:37,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:37,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:37,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:38,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:38,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:11:38,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:38,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 454 [2020-10-15 02:11:38,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:38,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:11:38,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:38,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:11:38,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:38,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:38,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:38,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:38,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:38,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:11:38,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:38,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 312 [2020-10-15 02:11:38,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:38,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:38,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:11:38,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:38,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:11:38,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:38,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:38,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:38,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:39,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:39,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:11:39,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:39,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 256 [2020-10-15 02:11:39,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:39,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:39,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:11:39,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:39,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:11:39,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:39,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:39,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:39,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:39,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:11:39,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:39,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-15 02:11:39,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:39,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:39,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:11:39,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:39,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:11:39,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:39,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:39,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:39,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:39,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:39,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:39,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:39,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-15 02:11:39,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:39,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:39,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:39,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:11:39,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:39,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:39,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:39,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:39,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:39,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:39,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 128 [2020-10-15 02:11:39,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:39,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:39,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:39,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:39,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:11:39,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:39,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:39,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:39,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:39,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:39,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:39,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:39,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-15 02:11:39,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:39,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:39,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:11:39,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:39,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:39,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:39,846 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:39,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:39,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:39,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:39,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:11:39,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:39,884 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:39,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:39,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:39,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:39,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:39,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:39,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:39,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:39,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:39,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:11:39,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:39,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:39,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:39,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:39,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:39,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:40,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:40,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:40,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:40,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:40,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:40,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-15 02:11:40,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:40,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:40,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:40,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:40,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:40,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:40,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:40,140 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:40,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:40,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:40,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:40,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-15 02:11:40,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:40,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:40,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:40,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:40,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:40,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:40,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:40,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:40,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:40,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:40,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:40,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:40,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:11:40,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:40,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:40,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:40,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:40,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:40,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:40,294 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-15 02:11:40,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913669341] [2020-10-15 02:11:40,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:40,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-15 02:11:40,295 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848097681] [2020-10-15 02:11:40,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-15 02:11:40,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:40,296 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-15 02:11:40,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:11:40,297 INFO L87 Difference]: Start difference. First operand 51 states and 52 transitions. Second operand 29 states. [2020-10-15 02:11:40,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:40,691 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-15 02:11:40,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-15 02:11:40,693 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 85 [2020-10-15 02:11:40,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:40,694 INFO L225 Difference]: With dead ends: 58 [2020-10-15 02:11:40,694 INFO L226 Difference]: Without dead ends: 54 [2020-10-15 02:11:40,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=55, Invalid=757, Unknown=0, NotChecked=0, Total=812 [2020-10-15 02:11:40,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2020-10-15 02:11:40,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 54. [2020-10-15 02:11:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-15 02:11:40,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 55 transitions. [2020-10-15 02:11:40,701 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 55 transitions. Word has length 85 [2020-10-15 02:11:40,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:40,702 INFO L479 AbstractCegarLoop]: Abstraction has 54 states and 55 transitions. [2020-10-15 02:11:40,702 INFO L480 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-15 02:11:40,702 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 55 transitions. [2020-10-15 02:11:40,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-15 02:11:40,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:40,703 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:40,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-15 02:11:40,703 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:40,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:40,704 INFO L82 PathProgramCache]: Analyzing trace with hash -218674449, now seen corresponding path program 13 times [2020-10-15 02:11:40,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:40,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2107114772] [2020-10-15 02:11:40,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:40,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:40,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:41,437 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:41,437 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-15 02:11:41,437 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:41,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 716 [2020-10-15 02:11:41,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:41,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-15 02:11:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-15 02:11:41,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-15 02:11:41,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:41,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:41,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:41,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:41,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:41,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:41,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:41,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:11:41,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:41,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:41,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:41,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:41,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:41,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:41,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:41,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:42,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:42,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:11:42,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:42,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 685 [2020-10-15 02:11:42,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:42,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:42,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:11:42,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:42,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-15 02:11:42,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:42,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:42,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:42,720 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:42,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:11:42,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:42,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-15 02:11:42,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:42,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:42,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:11:42,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:42,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 02:11:42,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:42,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:42,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:43,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:43,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:11:43,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:43,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 398 [2020-10-15 02:11:43,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:43,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:43,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:11:43,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:43,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:11:43,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:43,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:43,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:43,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:43,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:43,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:11:43,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:43,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-10-15 02:11:43,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:43,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:11:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:43,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:11:43,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:43,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:43,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:43,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:43,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:11:43,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:43,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 243 [2020-10-15 02:11:43,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:43,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:11:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:43,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:11:43,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:43,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:43,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:43,887 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:44,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:44,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:11:44,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:44,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 198 [2020-10-15 02:11:44,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:44,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:44,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:11:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:44,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:11:44,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:44,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:44,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:44,274 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:44,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:44,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:44,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-15 02:11:44,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:44,275 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:44,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:44,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:11:44,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:44,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:44,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:44,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:44,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:44,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:44,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:44,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-15 02:11:44,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:44,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:44,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:11:44,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:44,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:44,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:44,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:44,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:44,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:44,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:44,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-15 02:11:44,632 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:44,632 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:44,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:44,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:44,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:11:44,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:44,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:44,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:44,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:44,809 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:44,810 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:44,810 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:44,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-15 02:11:44,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:44,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:44,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:44,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:44,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:44,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:11:44,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:44,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:44,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:44,966 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:44,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:44,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:44,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-15 02:11:44,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:44,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:44,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:44,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:44,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:44,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:11:45,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:45,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:45,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:45,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:45,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:45,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:45,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-15 02:11:45,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:45,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:45,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:45,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:45,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:45,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:45,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:45,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:45,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:45,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:45,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:45,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:11:45,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:45,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:45,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:45,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:45,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:45,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:45,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:45,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:45,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:45,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:45,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:45,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-15 02:11:45,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:45,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:45,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:45,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:45,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:45,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:45,435 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-10-15 02:11:45,436 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2107114772] [2020-10-15 02:11:45,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:45,436 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-15 02:11:45,436 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779167681] [2020-10-15 02:11:45,437 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-15 02:11:45,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:45,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-15 02:11:45,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:11:45,439 INFO L87 Difference]: Start difference. First operand 54 states and 55 transitions. Second operand 31 states. [2020-10-15 02:11:45,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:45,864 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-15 02:11:45,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-15 02:11:45,864 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 91 [2020-10-15 02:11:45,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:45,865 INFO L225 Difference]: With dead ends: 61 [2020-10-15 02:11:45,865 INFO L226 Difference]: Without dead ends: 57 [2020-10-15 02:11:45,867 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=871, Unknown=0, NotChecked=0, Total=930 [2020-10-15 02:11:45,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-15 02:11:45,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-15 02:11:45,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-15 02:11:45,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 58 transitions. [2020-10-15 02:11:45,883 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 58 transitions. Word has length 91 [2020-10-15 02:11:45,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:45,883 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 58 transitions. [2020-10-15 02:11:45,883 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-15 02:11:45,883 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 58 transitions. [2020-10-15 02:11:45,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-10-15 02:11:45,885 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:45,886 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:45,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-15 02:11:45,886 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:45,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:45,886 INFO L82 PathProgramCache]: Analyzing trace with hash 492436605, now seen corresponding path program 14 times [2020-10-15 02:11:45,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:45,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1180266593] [2020-10-15 02:11:45,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:45,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:45,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:46,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:46,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-15 02:11:46,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:46,710 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 799 [2020-10-15 02:11:46,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:46,710 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:46,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-15 02:11:46,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 85 [2020-10-15 02:11:46,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-15 02:11:46,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:46,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:46,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:46,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:46,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:46,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:46,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:46,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-15 02:11:46,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:46,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:46,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:46,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:46,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:46,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:46,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:46,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:47,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:47,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:11:47,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:47,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 913 [2020-10-15 02:11:47,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:47,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:47,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:11:47,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:47,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:11:47,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:47,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:47,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:47,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:48,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:48,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:11:48,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:48,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 915 [2020-10-15 02:11:48,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:48,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:48,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:11:48,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:48,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-15 02:11:48,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:48,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:48,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:11:49,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 487 [2020-10-15 02:11:49,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:11:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:49,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 02:11:49,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:49,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:49,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:49,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:11:49,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 397 [2020-10-15 02:11:49,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:11:49,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:49,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:11:49,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:49,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:49,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:49,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:49,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:49,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:11:49,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:49,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 313 [2020-10-15 02:11:49,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:49,991 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:11:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:49,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:11:49,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:50,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:50,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:50,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:50,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:11:50,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:50,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 468 [2020-10-15 02:11:50,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:50,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:11:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:50,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:11:50,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:50,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:50,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:50,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:50,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:11:50,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:50,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-15 02:11:50,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:50,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:11:50,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:50,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:11:50,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:50,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:50,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:50,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:50,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:50,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:50,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-15 02:11:50,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:50,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:50,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:50,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:50,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:11:50,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:51,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:51,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:51,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-15 02:11:51,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:11:51,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:51,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:51,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,168 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:51,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-15 02:11:51,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:51,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:11:51,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:51,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:51,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-15 02:11:51,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:51,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:51,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:51,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:51,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:51,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-15 02:11:51,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:51,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:51,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:51,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:51,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:11:51,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:51,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:51,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:51,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:51,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:11:51,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:51,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:51,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:51,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:51,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:51,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:51,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:51,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:51,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-15 02:11:51,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:51,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:51,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:51,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:51,830 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-10-15 02:11:51,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1180266593] [2020-10-15 02:11:51,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:51,831 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33] total 33 [2020-10-15 02:11:51,831 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790196304] [2020-10-15 02:11:51,831 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-10-15 02:11:51,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:51,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-10-15 02:11:51,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:11:51,833 INFO L87 Difference]: Start difference. First operand 57 states and 58 transitions. Second operand 33 states. [2020-10-15 02:11:52,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:52,295 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-15 02:11:52,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-15 02:11:52,295 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 97 [2020-10-15 02:11:52,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:52,296 INFO L225 Difference]: With dead ends: 64 [2020-10-15 02:11:52,296 INFO L226 Difference]: Without dead ends: 60 [2020-10-15 02:11:52,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=63, Invalid=993, Unknown=0, NotChecked=0, Total=1056 [2020-10-15 02:11:52,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-15 02:11:52,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-10-15 02:11:52,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-10-15 02:11:52,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 61 transitions. [2020-10-15 02:11:52,303 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 61 transitions. Word has length 97 [2020-10-15 02:11:52,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:52,303 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 61 transitions. [2020-10-15 02:11:52,303 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-10-15 02:11:52,303 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 61 transitions. [2020-10-15 02:11:52,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-15 02:11:52,305 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:52,305 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:52,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-15 02:11:52,305 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:52,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:52,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1083048687, now seen corresponding path program 15 times [2020-10-15 02:11:52,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:52,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169044289] [2020-10-15 02:11:52,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:52,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:53,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:53,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-15 02:11:53,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:53,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 964 [2020-10-15 02:11:53,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:53,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:53,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-15 02:11:53,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-15 02:11:53,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-15 02:11:53,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:53,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:11:53,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:53,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:53,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:53,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:11:53,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:53,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:11:53,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:53,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:11:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:53,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:11:53,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:53,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:11:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:53,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:54,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:54,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-15 02:11:54,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:54,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 905 [2020-10-15 02:11:54,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:54,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:11:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:54,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-15 02:11:54,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:54,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:54,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:54,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:55,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:55,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:11:55,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:55,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-10-15 02:11:55,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:55,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:55,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:11:55,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:55,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:11:55,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:55,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:55,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:55,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:55,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:55,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:11:55,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:55,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 753 [2020-10-15 02:11:55,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:55,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:55,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:11:55,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:55,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-15 02:11:55,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:55,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:55,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:55,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:56,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:56,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:11:56,398 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:56,398 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 510 [2020-10-15 02:11:56,398 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:56,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:56,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:11:56,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:56,399 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 02:11:56,399 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:56,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:56,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:56,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:56,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:11:56,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:56,836 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-15 02:11:56,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:56,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:11:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:56,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:11:56,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:56,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:56,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:56,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:57,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:57,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:11:57,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:57,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 297 [2020-10-15 02:11:57,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:57,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:57,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:11:57,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:57,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:11:57,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:57,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:57,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:57,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:57,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:57,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:11:57,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:57,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-15 02:11:57,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:57,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:57,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:11:57,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:57,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:11:57,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:57,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:57,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:57,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:57,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:57,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:11:57,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:57,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-15 02:11:57,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:57,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:11:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:57,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:11:57,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:57,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:57,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:57,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:57,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:11:57,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:57,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-15 02:11:57,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:57,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:57,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:11:57,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:57,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:11:57,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:57,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:57,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:58,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:58,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:11:58,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:58,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-15 02:11:58,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:58,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:11:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:58,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:11:58,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:58,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:58,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:58,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:58,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:58,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:11:58,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:58,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-15 02:11:58,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:58,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:58,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:11:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:58,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:11:58,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:58,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:58,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:58,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:58,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:11:58,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:58,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:11:58,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:58,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:11:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:58,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:11:58,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:58,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:58,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:58,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:58,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:11:58,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:58,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:11:58,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:58,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:58,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:11:58,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:58,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:11:58,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:11:58,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:58,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:58,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:58,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:11:58,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:58,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:11:58,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:58,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:58,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:11:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:58,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:11:58,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:58,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:58,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:58,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:58,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:58,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:11:58,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:58,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:11:58,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:58,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:11:58,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:58,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:11:58,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:58,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:11:58,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:58,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:11:58,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:11:58,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:11:58,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:11:58,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:11:58,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:11:58,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:11:58,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:11:58,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:11:58,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:11:58,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:11:58,782 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-10-15 02:11:58,782 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169044289] [2020-10-15 02:11:58,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:11:58,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35] total 35 [2020-10-15 02:11:58,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125541983] [2020-10-15 02:11:58,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-10-15 02:11:58,783 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:11:58,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-10-15 02:11:58,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-15 02:11:58,784 INFO L87 Difference]: Start difference. First operand 60 states and 61 transitions. Second operand 35 states. [2020-10-15 02:11:59,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:11:59,291 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-15 02:11:59,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-10-15 02:11:59,292 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 103 [2020-10-15 02:11:59,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:11:59,293 INFO L225 Difference]: With dead ends: 67 [2020-10-15 02:11:59,294 INFO L226 Difference]: Without dead ends: 63 [2020-10-15 02:11:59,295 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=67, Invalid=1123, Unknown=0, NotChecked=0, Total=1190 [2020-10-15 02:11:59,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-15 02:11:59,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-10-15 02:11:59,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-10-15 02:11:59,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 64 transitions. [2020-10-15 02:11:59,300 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 64 transitions. Word has length 103 [2020-10-15 02:11:59,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:11:59,301 INFO L479 AbstractCegarLoop]: Abstraction has 63 states and 64 transitions. [2020-10-15 02:11:59,301 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-10-15 02:11:59,301 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 64 transitions. [2020-10-15 02:11:59,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-15 02:11:59,302 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:11:59,302 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:11:59,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-15 02:11:59,303 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:11:59,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:11:59,303 INFO L82 PathProgramCache]: Analyzing trace with hash 404015613, now seen corresponding path program 16 times [2020-10-15 02:11:59,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:11:59,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779947148] [2020-10-15 02:11:59,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:11:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:11:59,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:00,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:00,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-15 02:12:00,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:00,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1148 [2020-10-15 02:12:00,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:00,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:00,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-15 02:12:00,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 95 [2020-10-15 02:12:00,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:12:00,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:00,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:00,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:00,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:00,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:00,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:00,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:00,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:00,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:00,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:00,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:00,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:00,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:00,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:01,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:01,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:12:01,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:01,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-10-15 02:12:01,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:01,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-15 02:12:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:01,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-15 02:12:01,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:01,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:01,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:01,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:02,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:02,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-15 02:12:02,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:02,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 897 [2020-10-15 02:12:02,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:02,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:02,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:12:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:02,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-15 02:12:02,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:02,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:02,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:02,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:03,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:03,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:12:03,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:03,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 749 [2020-10-15 02:12:03,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:03,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:03,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:12:03,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:03,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:12:03,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:03,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:03,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:03,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:03,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:03,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:12:03,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:03,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 585 [2020-10-15 02:12:03,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:03,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:12:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:03,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-15 02:12:03,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:03,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:03,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:04,421 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:04,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:04,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:04,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 450 [2020-10-15 02:12:04,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:04,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:04,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:04,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 02:12:04,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:04,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:04,480 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:04,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:04,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:04,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:04,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 421 [2020-10-15 02:12:04,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:04,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:04,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:04,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:04,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:12:04,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:04,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:04,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:04,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:05,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:05,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:05,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:05,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 288 [2020-10-15 02:12:05,240 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:05,240 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:05,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:05,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:12:05,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:05,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:05,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:05,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:05,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:05,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:05,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:05,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-10-15 02:12:05,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:05,531 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:05,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:12:05,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:05,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:05,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:05,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:05,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:05,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:05,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:05,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-15 02:12:05,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:05,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:05,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:05,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:05,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:12:05,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:05,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:05,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:05,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:05,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:05,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:05,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-15 02:12:05,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:05,966 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:05,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:05,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:05,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:12:05,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:06,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:06,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:06,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:06,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:06,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:06,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:06,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-15 02:12:06,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:06,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:06,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:06,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:06,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:12:06,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:06,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:06,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:06,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:06,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:06,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:06,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-15 02:12:06,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:06,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:06,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:06,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:06,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:12:06,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:06,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:06,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:06,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:06,383 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:06,383 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:06,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:06,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-15 02:12:06,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:06,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:06,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:06,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:06,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:12:06,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:06,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:06,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:06,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:06,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:06,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:06,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-15 02:12:06,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:06,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:06,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:12:06,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:06,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:06,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:06,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:06,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:06,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:06,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:06,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:12:06,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:06,585 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:06,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:06,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:06,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:12:06,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:06,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:06,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:06,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:06,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:06,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:06,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:06,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:12:06,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:06,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:06,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:06,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:12:06,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:06,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:06,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:06,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:06,778 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:06,778 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:06,778 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:12:06,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:06,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:12:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:06,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:12:06,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:06,882 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-10-15 02:12:06,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779947148] [2020-10-15 02:12:06,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:06,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37] total 37 [2020-10-15 02:12:06,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083100311] [2020-10-15 02:12:06,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 37 states [2020-10-15 02:12:06,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:06,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2020-10-15 02:12:06,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2020-10-15 02:12:06,885 INFO L87 Difference]: Start difference. First operand 63 states and 64 transitions. Second operand 37 states. [2020-10-15 02:12:07,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:07,510 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-15 02:12:07,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-10-15 02:12:07,511 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 109 [2020-10-15 02:12:07,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:07,513 INFO L225 Difference]: With dead ends: 70 [2020-10-15 02:12:07,513 INFO L226 Difference]: Without dead ends: 66 [2020-10-15 02:12:07,515 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=1261, Unknown=0, NotChecked=0, Total=1332 [2020-10-15 02:12:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-15 02:12:07,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-15 02:12:07,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-15 02:12:07,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 67 transitions. [2020-10-15 02:12:07,526 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 67 transitions. Word has length 109 [2020-10-15 02:12:07,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:07,526 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 67 transitions. [2020-10-15 02:12:07,526 INFO L480 AbstractCegarLoop]: Interpolant automaton has 37 states. [2020-10-15 02:12:07,527 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 67 transitions. [2020-10-15 02:12:07,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-15 02:12:07,529 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:07,530 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:07,530 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-15 02:12:07,530 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:07,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:07,531 INFO L82 PathProgramCache]: Analyzing trace with hash -464475409, now seen corresponding path program 17 times [2020-10-15 02:12:07,531 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:07,531 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257622054] [2020-10-15 02:12:07,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:07,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:08,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:08,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 157 [2020-10-15 02:12:08,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:08,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1438 [2020-10-15 02:12:08,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:08,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-15 02:12:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 100 [2020-10-15 02:12:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-15 02:12:09,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:09,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:09,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:09,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:09,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:09,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:09,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:09,037 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:09,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:09,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:09,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:09,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:09,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:09,038 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:09,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:09,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:09,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:10,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:10,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-15 02:12:10,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:10,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1287 [2020-10-15 02:12:10,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:10,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-15 02:12:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:10,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-15 02:12:10,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:10,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:10,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:10,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:11,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:11,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:12:11,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:11,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1097 [2020-10-15 02:12:11,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:11,491 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:11,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-15 02:12:11,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:11,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-15 02:12:11,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:11,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:11,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:11,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:12,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:12,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-15 02:12:12,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:12,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 896 [2020-10-15 02:12:12,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:12,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:12,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:12:12,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:12,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-15 02:12:12,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:12,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:12,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:13,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:13,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:12:13,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:13,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 726 [2020-10-15 02:12:13,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:13,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:13,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:12:13,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:13,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:12:13,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:13,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:13,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:13,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:13,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:13,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:12:13,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:13,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-15 02:12:13,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:13,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:13,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:12:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:13,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-15 02:12:13,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:13,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:13,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:13,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:14,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:14,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:14,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:14,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 472 [2020-10-15 02:12:14,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:14,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:14,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 02:12:14,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:14,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:14,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:14,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:14,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:14,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:14,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 380 [2020-10-15 02:12:14,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:14,811 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:14,811 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:14,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:14,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:12:14,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:14,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:14,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:15,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:15,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:15,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:15,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 291 [2020-10-15 02:12:15,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:15,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:15,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:15,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:15,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:12:15,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:15,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:15,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:15,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:15,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:15,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:15,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:15,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-15 02:12:15,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:15,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:15,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:12:15,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:15,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:15,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:15,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:15,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:15,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:15,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:15,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 189 [2020-10-15 02:12:15,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:15,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:15,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:12:15,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:15,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:15,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:15,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:15,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:15,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:15,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:15,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 125 [2020-10-15 02:12:15,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:15,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:15,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:15,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:15,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:12:15,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:15,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:15,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:15,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:16,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-15 02:12:16,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:12:16,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:16,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:16,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-15 02:12:16,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:16,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:12:16,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:16,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:16,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-15 02:12:16,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:12:16,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:16,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:16,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:12:16,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,478 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:16,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:12:16,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:16,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:16,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-15 02:12:16,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:12:16,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:16,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:16,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:12:16,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:16,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:12:16,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:16,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:16,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:16,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:16,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:16,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:16,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:16,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:12:16,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:16,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:12:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:12:16,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-15 02:12:16,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257622054] [2020-10-15 02:12:16,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:16,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39] total 39 [2020-10-15 02:12:16,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534698700] [2020-10-15 02:12:16,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 39 states [2020-10-15 02:12:16,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:16,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2020-10-15 02:12:16,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-10-15 02:12:16,914 INFO L87 Difference]: Start difference. First operand 66 states and 67 transitions. Second operand 39 states. [2020-10-15 02:12:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:17,553 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-15 02:12:17,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-10-15 02:12:17,553 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 115 [2020-10-15 02:12:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:17,554 INFO L225 Difference]: With dead ends: 73 [2020-10-15 02:12:17,555 INFO L226 Difference]: Without dead ends: 69 [2020-10-15 02:12:17,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=75, Invalid=1407, Unknown=0, NotChecked=0, Total=1482 [2020-10-15 02:12:17,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-10-15 02:12:17,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-10-15 02:12:17,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-10-15 02:12:17,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 70 transitions. [2020-10-15 02:12:17,560 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 70 transitions. Word has length 115 [2020-10-15 02:12:17,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:17,561 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 70 transitions. [2020-10-15 02:12:17,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 39 states. [2020-10-15 02:12:17,561 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 70 transitions. [2020-10-15 02:12:17,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-15 02:12:17,562 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:17,562 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:17,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-15 02:12:17,563 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:17,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:17,563 INFO L82 PathProgramCache]: Analyzing trace with hash 130115453, now seen corresponding path program 18 times [2020-10-15 02:12:17,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:17,564 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [168887837] [2020-10-15 02:12:17,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:17,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:19,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:19,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-15 02:12:19,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:19,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1601 [2020-10-15 02:12:19,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:19,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-15 02:12:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-15 02:12:19,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-15 02:12:19,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:19,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:19,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:19,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:19,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:19,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:19,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:19,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:19,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:19,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:19,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:19,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:19,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:19,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:19,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:19,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:19,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:20,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:20,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-15 02:12:20,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:20,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1477 [2020-10-15 02:12:20,718 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:20,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:20,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-15 02:12:20,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:20,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-15 02:12:20,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:20,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:20,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:22,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:22,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-15 02:12:22,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:22,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1270 [2020-10-15 02:12:22,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:22,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:22,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-15 02:12:22,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:22,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-15 02:12:22,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:22,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:22,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:22,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:23,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:23,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:12:23,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:23,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1098 [2020-10-15 02:12:23,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:23,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:23,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-15 02:12:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:23,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-15 02:12:23,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:23,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:23,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:23,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-15 02:12:24,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 893 [2020-10-15 02:12:24,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:12:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-15 02:12:24,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:24,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:24,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:24,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:24,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:24,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:12:24,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:24,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 728 [2020-10-15 02:12:24,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:24,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:12:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:24,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:12:24,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:24,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:24,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:24,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:25,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:25,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:12:25,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:25,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 607 [2020-10-15 02:12:25,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:25,569 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:25,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:12:25,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:25,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-15 02:12:25,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:25,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:25,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:25,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:26,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:26,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:26,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:26,185 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 548 [2020-10-15 02:12:26,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:26,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:26,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 02:12:26,186 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:26,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:26,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:26,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:26,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:26,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:26,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:26,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-15 02:12:26,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:26,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:12:26,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:26,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:26,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:26,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:26,993 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:26,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:26,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:26,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-10-15 02:12:26,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:26,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:26,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:12:26,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:27,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:27,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:27,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:27,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:27,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:27,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:27,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-15 02:12:27,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:27,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:27,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:12:27,299 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:27,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:27,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:27,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:27,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:27,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:27,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-15 02:12:27,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:27,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:27,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:12:27,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:27,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:27,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:27,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:27,757 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:27,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:27,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:27,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-15 02:12:27,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:27,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:27,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:12:27,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:27,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:27,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:27,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:27,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:27,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:27,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-15 02:12:27,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:27,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:27,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:12:27,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:28,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:28,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:28,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:28,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:28,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:28,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:28,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-15 02:12:28,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:28,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:28,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:28,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:12:28,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:28,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:28,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:28,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:28,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:28,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:28,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:28,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-15 02:12:28,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:28,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:28,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:12:28,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:28,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:28,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:28,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:28,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:28,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:28,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-15 02:12:28,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:28,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:28,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:12:28,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:28,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:28,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:28,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:28,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:28,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:28,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:28,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-15 02:12:28,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:28,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:28,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:28,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:12:28,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-15 02:12:28,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:28,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:28,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:28,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:28,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:28,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-15 02:12:28,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:28,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:28,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:12:28,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:28,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:28,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:28,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:28,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:28,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:28,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:12:28,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:28,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:12:28,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:28,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:12:28,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:28,797 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-10-15 02:12:28,797 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [168887837] [2020-10-15 02:12:28,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:28,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41] total 41 [2020-10-15 02:12:28,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262777102] [2020-10-15 02:12:28,798 INFO L459 AbstractCegarLoop]: Interpolant automaton has 41 states [2020-10-15 02:12:28,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:28,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2020-10-15 02:12:28,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-10-15 02:12:28,799 INFO L87 Difference]: Start difference. First operand 69 states and 70 transitions. Second operand 41 states. [2020-10-15 02:12:29,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:29,533 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-15 02:12:29,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-10-15 02:12:29,534 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 121 [2020-10-15 02:12:29,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:29,536 INFO L225 Difference]: With dead ends: 76 [2020-10-15 02:12:29,536 INFO L226 Difference]: Without dead ends: 72 [2020-10-15 02:12:29,538 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=79, Invalid=1561, Unknown=0, NotChecked=0, Total=1640 [2020-10-15 02:12:29,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-15 02:12:29,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-10-15 02:12:29,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-10-15 02:12:29,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 73 transitions. [2020-10-15 02:12:29,543 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 73 transitions. Word has length 121 [2020-10-15 02:12:29,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:29,544 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 73 transitions. [2020-10-15 02:12:29,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 41 states. [2020-10-15 02:12:29,544 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 73 transitions. [2020-10-15 02:12:29,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-15 02:12:29,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:29,545 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:29,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-15 02:12:29,546 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:29,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:29,546 INFO L82 PathProgramCache]: Analyzing trace with hash -2010955025, now seen corresponding path program 19 times [2020-10-15 02:12:29,546 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:29,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848773609] [2020-10-15 02:12:29,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:29,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:29,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:31,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:31,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-15 02:12:31,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:31,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1916 [2020-10-15 02:12:31,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:31,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:31,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-15 02:12:31,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 110 [2020-10-15 02:12:31,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-15 02:12:31,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:31,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-15 02:12:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:31,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:31,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:31,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 7 [2020-10-15 02:12:31,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:31,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-15 02:12:31,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:31,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:31,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-15 02:12:31,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:31,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-15 02:12:31,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:31,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-10-15 02:12:31,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:31,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:33,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:33,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-15 02:12:33,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:33,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1754 [2020-10-15 02:12:33,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:33,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:33,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-15 02:12:33,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:33,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-15 02:12:33,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:33,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:33,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:33,369 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:34,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:34,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-15 02:12:34,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:34,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1480 [2020-10-15 02:12:34,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:34,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:34,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-15 02:12:34,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:34,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-15 02:12:34,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:34,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:34,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:34,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:36,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:36,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-15 02:12:36,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:36,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1262 [2020-10-15 02:12:36,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:36,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-15 02:12:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:36,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-15 02:12:36,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:36,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:36,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:37,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:37,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-15 02:12:37,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:37,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1069 [2020-10-15 02:12:37,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:37,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:37,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-15 02:12:37,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:37,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-15 02:12:37,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:37,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:37,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:38,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:38,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-15 02:12:38,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:38,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 870 [2020-10-15 02:12:38,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:38,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-15 02:12:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:38,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-15 02:12:38,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:38,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:38,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:38,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:39,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:39,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-15 02:12:39,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:39,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 743 [2020-10-15 02:12:39,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:39,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:39,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-15 02:12:39,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:39,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-15 02:12:39,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:39,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:39,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:39,656 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:39,657 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-15 02:12:39,657 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:39,657 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 591 [2020-10-15 02:12:39,657 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:39,657 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:39,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-15 02:12:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:39,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-15 02:12:39,658 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:39,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:39,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:39,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:40,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:40,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-15 02:12:40,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:40,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 488 [2020-10-15 02:12:40,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:40,210 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-15 02:12:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:40,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-15 02:12:40,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:40,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:40,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:40,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:40,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-15 02:12:40,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:40,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 391 [2020-10-15 02:12:40,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:40,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-15 02:12:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:40,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-15 02:12:40,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:40,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:40,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:40,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:41,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:41,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-15 02:12:41,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:41,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-15 02:12:41,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:41,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-15 02:12:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-15 02:12:41,046 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:41,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:41,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:41,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:41,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:41,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-15 02:12:41,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:41,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 228 [2020-10-15 02:12:41,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:41,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-15 02:12:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:41,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-15 02:12:41,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:41,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:41,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:41,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:41,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-15 02:12:41,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:41,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-15 02:12:41,595 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:41,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-15 02:12:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:41,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-15 02:12:41,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:41,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:41,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:41,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:41,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:41,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-15 02:12:41,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:41,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-15 02:12:41,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:41,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:41,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-15 02:12:41,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:41,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-15 02:12:41,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:41,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:41,886 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:41,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:41,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-15 02:12:41,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:41,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 84 [2020-10-15 02:12:41,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:41,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:41,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-15 02:12:41,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:41,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-15 02:12:41,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-15 02:12:42,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:42,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:42,057 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:42,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:42,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-15 02:12:42,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:42,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-15 02:12:42,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:42,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:42,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-15 02:12:42,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:42,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-15 02:12:42,116 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:42,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:42,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:42,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:42,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-15 02:12:42,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:42,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-15 02:12:42,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:42,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:42,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-15 02:12:42,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:42,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-15 02:12:42,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:42,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:42,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:42,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:42,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-15 02:12:42,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:42,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-15 02:12:42,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:42,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:42,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-15 02:12:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:42,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-15 02:12:42,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:42,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:42,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:42,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:42,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:42,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-15 02:12:42,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:42,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-15 02:12:42,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:42,513 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:42,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-15 02:12:42,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:42,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-15 02:12:42,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:42,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:42,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:42,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:42,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:42,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-15 02:12:42,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:42,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-15 02:12:42,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:42,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:42,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-15 02:12:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:42,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-15 02:12:42,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:42,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-15 02:12:42,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-15 02:12:42,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-15 02:12:42,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-15 02:12:42,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-15 02:12:42,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-15 02:12:42,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-15 02:12:42,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-15 02:12:42,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-15 02:12:42,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-15 02:12:42,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-15 02:12:42,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-15 02:12:42,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-15 02:12:42,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-10-15 02:12:42,884 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848773609] [2020-10-15 02:12:42,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-15 02:12:42,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43] total 43 [2020-10-15 02:12:42,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117355760] [2020-10-15 02:12:42,884 INFO L459 AbstractCegarLoop]: Interpolant automaton has 43 states [2020-10-15 02:12:42,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-15 02:12:42,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2020-10-15 02:12:42,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 02:12:42,885 INFO L87 Difference]: Start difference. First operand 72 states and 73 transitions. Second operand 43 states. [2020-10-15 02:12:43,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-15 02:12:43,695 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-15 02:12:43,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2020-10-15 02:12:43,695 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 127 [2020-10-15 02:12:43,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-15 02:12:43,697 INFO L225 Difference]: With dead ends: 79 [2020-10-15 02:12:43,698 INFO L226 Difference]: Without dead ends: 75 [2020-10-15 02:12:43,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=1723, Unknown=0, NotChecked=0, Total=1806 [2020-10-15 02:12:43,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-15 02:12:43,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-15 02:12:43,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-15 02:12:43,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 76 transitions. [2020-10-15 02:12:43,705 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 76 transitions. Word has length 127 [2020-10-15 02:12:43,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-15 02:12:43,706 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 76 transitions. [2020-10-15 02:12:43,706 INFO L480 AbstractCegarLoop]: Interpolant automaton has 43 states. [2020-10-15 02:12:43,706 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 76 transitions. [2020-10-15 02:12:43,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-15 02:12:43,708 INFO L414 BasicCegarLoop]: Found error trace [2020-10-15 02:12:43,708 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-15 02:12:43,708 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-15 02:12:43,714 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-15 02:12:43,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-15 02:12:43,715 INFO L82 PathProgramCache]: Analyzing trace with hash -799288067, now seen corresponding path program 20 times [2020-10-15 02:12:43,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-15 02:12:43,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268602703] [2020-10-15 02:12:43,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-15 02:12:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-15 02:12:43,753 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-15 02:12:43,753 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-15 02:12:43,758 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-15 02:12:43,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 02:12:43 BoogieIcfgContainer [2020-10-15 02:12:43,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-15 02:12:43,784 INFO L168 Benchmark]: Toolchain (without parser) took 90706.98 ms. Allocated memory was 147.8 MB in the beginning and 1.5 GB in the end (delta: 1.4 GB). Free memory was 102.9 MB in the beginning and 1.0 GB in the end (delta: -926.8 MB). Peak memory consumption was 438.4 MB. Max. memory is 7.1 GB. [2020-10-15 02:12:43,784 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.7 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-15 02:12:43,785 INFO L168 Benchmark]: CACSL2BoogieTranslator took 229.77 ms. Allocated memory is still 147.8 MB. Free memory was 102.5 MB in the beginning and 93.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2020-10-15 02:12:43,786 INFO L168 Benchmark]: Boogie Preprocessor took 118.29 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 93.5 MB in the beginning and 182.9 MB in the end (delta: -89.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-10-15 02:12:43,786 INFO L168 Benchmark]: RCFGBuilder took 236.18 ms. Allocated memory is still 203.9 MB. Free memory was 182.9 MB in the beginning and 172.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-10-15 02:12:43,787 INFO L168 Benchmark]: TraceAbstraction took 90116.13 ms. Allocated memory was 203.9 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 171.3 MB in the beginning and 1.0 GB in the end (delta: -858.4 MB). Peak memory consumption was 450.7 MB. Max. memory is 7.1 GB. [2020-10-15 02:12:43,790 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 147.8 MB. Free memory was 121.1 MB in the beginning and 120.7 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 229.77 ms. Allocated memory is still 147.8 MB. Free memory was 102.5 MB in the beginning and 93.5 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 118.29 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 93.5 MB in the beginning and 182.9 MB in the end (delta: -89.3 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 236.18 ms. Allocated memory is still 203.9 MB. Free memory was 182.9 MB in the beginning and 172.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 90116.13 ms. Allocated memory was 203.9 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 171.3 MB in the beginning and 1.0 GB in the end (delta: -858.4 MB). Peak memory consumption was 450.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 13]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L10] unsigned int input = __VERIFIER_nondet_uint(); [L11] CALL, EXPR id(input) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND FALSE !(x==0) [L6] CALL, EXPR id(x-1) [L5] COND TRUE x==0 [L5] return 0; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L6] RET, EXPR id(x-1) [L6] return id(x-1) + 1; [L11] RET, EXPR id(input) [L11] unsigned int result = id(input); [L12] COND TRUE result == 20 [L13] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 90.0s, OverallIterations: 21, TraceHistogramMax: 21, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 684 SDtfs, 2 SDslu, 14532 SDs, 0 SdLazy, 8656 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 940 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 20 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 82.6s InterpolantComputationTime, 1533 NumberOfCodeBlocks, 1533 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1380 ConstructedInterpolants, 0 QuantifiedInterpolants, 458592 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 1 PerfectInterpolantSequences, 3800/7600 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...