/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Ackermann03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:28:46,030 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:28:46,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:28:46,062 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:28:46,065 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:28:46,067 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:28:46,070 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:28:46,075 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:28:46,077 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:28:46,081 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:28:46,083 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:28:46,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:28:46,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:28:46,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:28:46,091 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:28:46,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:28:46,096 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:28:46,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:28:46,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:28:46,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:28:46,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:28:46,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:28:46,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:28:46,112 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:28:46,118 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:28:46,119 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:28:46,119 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:28:46,124 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:28:46,124 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:28:46,126 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:28:46,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:28:46,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:28:46,128 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:28:46,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:28:46,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:28:46,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:28:46,146 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:28:46,147 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:28:46,147 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:28:46,148 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:28:46,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:28:46,153 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:28:46,192 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:28:46,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:28:46,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:28:46,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:28:46,194 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:28:46,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:28:46,194 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:28:46,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:28:46,195 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:28:46,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:28:46,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:28:46,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:28:46,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:28:46,196 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:28:46,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:28:46,196 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:28:46,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:28:46,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:28:46,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:28:46,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:28:46,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:28:46,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:28:46,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:28:46,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:28:46,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:28:46,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:28:46,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:28:46,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:28:46,199 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:28:46,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:28:46,649 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:28:46,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:28:46,682 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:28:46,684 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:28:46,684 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:28:46,686 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann03.c [2020-09-25 14:28:46,769 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d073d334/7f2accfa4492439faf35968dc73b4ce7/FLAGdbfe5bf98 [2020-09-25 14:28:47,341 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:28:47,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive/Ackermann03.c [2020-09-25 14:28:47,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d073d334/7f2accfa4492439faf35968dc73b4ce7/FLAGdbfe5bf98 [2020-09-25 14:28:47,667 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d073d334/7f2accfa4492439faf35968dc73b4ce7 [2020-09-25 14:28:47,683 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:28:47,689 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:28:47,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:28:47,691 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:28:47,695 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:28:47,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:28:47" (1/1) ... [2020-09-25 14:28:47,701 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@790fb128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:47, skipping insertion in model container [2020-09-25 14:28:47,702 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:28:47" (1/1) ... [2020-09-25 14:28:47,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:28:47,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:28:47,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:28:47,966 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:28:47,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:28:48,003 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:28:48,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:48 WrapperNode [2020-09-25 14:28:48,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:28:48,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:28:48,005 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:28:48,005 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:28:48,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:48" (1/1) ... [2020-09-25 14:28:48,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:48" (1/1) ... [2020-09-25 14:28:48,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:48" (1/1) ... [2020-09-25 14:28:48,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:48" (1/1) ... [2020-09-25 14:28:48,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:48" (1/1) ... [2020-09-25 14:28:48,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:48" (1/1) ... [2020-09-25 14:28:48,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:48" (1/1) ... [2020-09-25 14:28:48,039 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:28:48,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:28:48,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:28:48,040 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:28:48,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:48" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:28:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:28:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:28:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2020-09-25 14:28:48,194 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:28:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:28:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:28:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2020-09-25 14:28:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:28:48,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:28:48,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:28:48,519 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:28:48,519 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-25 14:28:48,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:28:48 BoogieIcfgContainer [2020-09-25 14:28:48,524 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:28:48,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:28:48,526 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:28:48,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:28:48,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:28:47" (1/3) ... [2020-09-25 14:28:48,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d18695d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:28:48, skipping insertion in model container [2020-09-25 14:28:48,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:28:48" (2/3) ... [2020-09-25 14:28:48,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d18695d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:28:48, skipping insertion in model container [2020-09-25 14:28:48,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:28:48" (3/3) ... [2020-09-25 14:28:48,535 INFO L109 eAbstractionObserver]: Analyzing ICFG Ackermann03.c [2020-09-25 14:28:48,545 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:28:48,556 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:28:48,579 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:28:48,608 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:28:48,609 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:28:48,609 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:28:48,609 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:28:48,609 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:28:48,609 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:28:48,610 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:28:48,610 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:28:48,631 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states. [2020-09-25 14:28:48,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-09-25 14:28:48,640 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:28:48,641 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:28:48,641 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:28:48,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:28:48,648 INFO L82 PathProgramCache]: Analyzing trace with hash -852610024, now seen corresponding path program 1 times [2020-09-25 14:28:48,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:28:48,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694646475] [2020-09-25 14:28:48,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:28:48,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:48,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:48,977 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:48,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-25 14:28:48,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:48,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-09-25 14:28:48,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:48,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:28:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 14:28:48,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-09-25 14:28:48,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 14:28:49,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:28:49,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:49,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:49,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:49,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:28:49,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:49,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:28:49,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:49,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:49,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:49,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:49,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:49,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:49,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:28:49,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:49,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:49,109 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:49,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:28:49,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:49,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 14:28:49,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:49,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:49,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:28:49,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:49,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:28:49,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:49,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:28:49,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1694646475] [2020-09-25 14:28:49,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:28:49,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 14:28:49,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013603132] [2020-09-25 14:28:49,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:28:49,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:28:49,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:28:49,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:28:49,190 INFO L87 Difference]: Start difference. First operand 44 states. Second operand 5 states. [2020-09-25 14:28:49,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:28:49,346 INFO L93 Difference]: Finished difference Result 88 states and 110 transitions. [2020-09-25 14:28:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:28:49,349 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2020-09-25 14:28:49,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:28:49,364 INFO L225 Difference]: With dead ends: 88 [2020-09-25 14:28:49,364 INFO L226 Difference]: Without dead ends: 45 [2020-09-25 14:28:49,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:28:49,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-09-25 14:28:49,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-09-25 14:28:49,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-09-25 14:28:49,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 52 transitions. [2020-09-25 14:28:49,435 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 52 transitions. Word has length 24 [2020-09-25 14:28:49,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:28:49,435 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 52 transitions. [2020-09-25 14:28:49,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:28:49,436 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 52 transitions. [2020-09-25 14:28:49,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-25 14:28:49,440 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:28:49,440 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:28:49,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:28:49,441 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:28:49,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:28:49,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1574290279, now seen corresponding path program 1 times [2020-09-25 14:28:49,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:28:49,443 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1224596635] [2020-09-25 14:28:49,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:28:49,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:49,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:49,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:49,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:49,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-09-25 14:28:49,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:28:49,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 491 [2020-09-25 14:28:49,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:49,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:49,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:28:49,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 14:28:49,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-09-25 14:28:49,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:28:49,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:28:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:49,976 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:49,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:49,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:28:49,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:49,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:28:49,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:49,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:49,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:49,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:49,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:49,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:28:49,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:49,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:50,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:50,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:28:50,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:50,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 14:28:50,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:50,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:50,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:28:50,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:50,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:28:50,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:50,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:28:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:50,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:50,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:50,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:28:50,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:50,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:28:50,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:50,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:50,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:28:50,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:50,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:28:50,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:50,084 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-25 14:28:50,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1224596635] [2020-09-25 14:28:50,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:28:50,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-25 14:28:50,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102938812] [2020-09-25 14:28:50,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 14:28:50,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:28:50,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 14:28:50,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:28:50,090 INFO L87 Difference]: Start difference. First operand 45 states and 52 transitions. Second operand 5 states. [2020-09-25 14:28:50,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:28:50,178 INFO L93 Difference]: Finished difference Result 83 states and 108 transitions. [2020-09-25 14:28:50,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:28:50,179 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-09-25 14:28:50,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:28:50,181 INFO L225 Difference]: With dead ends: 83 [2020-09-25 14:28:50,182 INFO L226 Difference]: Without dead ends: 47 [2020-09-25 14:28:50,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:28:50,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-09-25 14:28:50,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-09-25 14:28:50,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-09-25 14:28:50,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 56 transitions. [2020-09-25 14:28:50,196 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 56 transitions. Word has length 34 [2020-09-25 14:28:50,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:28:50,197 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 56 transitions. [2020-09-25 14:28:50,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 14:28:50,197 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 56 transitions. [2020-09-25 14:28:50,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-25 14:28:50,200 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:28:50,200 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:28:50,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:28:50,201 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:28:50,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:28:50,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1685750542, now seen corresponding path program 1 times [2020-09-25 14:28:50,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:28:50,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944109913] [2020-09-25 14:28:50,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:28:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:50,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:50,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:50,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:53,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:53,621 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-09-25 14:28:53,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:28:53,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3399 [2020-09-25 14:28:53,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:53,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:53,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:28:53,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 14:28:53,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-09-25 14:28:53,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:53,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:28:53,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:53,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:53,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:53,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:28:53,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:53,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:28:53,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:53,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:53,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:53,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:53,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:53,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:28:53,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:28:53,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:53,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:53,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:53,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 14:28:53,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:53,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 14:28:53,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:53,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:53,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:28:53,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:53,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 14:28:53,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:53,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:28:53,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:53,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:53,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:53,908 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:28:53,908 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:53,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-09-25 14:28:53,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:53,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:28:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:53,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 14:28:53,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:28:53,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:28:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:53,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:53,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:53,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:28:53,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:53,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:28:53,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:53,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:53,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:28:53,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:53,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:28:53,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-09-25 14:28:53,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:28:53,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:53,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:54,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:54,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:28:54,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:54,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 14:28:54,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:54,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:54,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:28:54,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:54,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:28:54,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:54,024 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 6 proven. 10 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-25 14:28:54,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944109913] [2020-09-25 14:28:54,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:28:54,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-25 14:28:54,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241228105] [2020-09-25 14:28:54,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-25 14:28:54,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:28:54,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-25 14:28:54,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-25 14:28:54,031 INFO L87 Difference]: Start difference. First operand 47 states and 56 transitions. Second operand 7 states. [2020-09-25 14:28:54,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:28:54,263 INFO L93 Difference]: Finished difference Result 75 states and 98 transitions. [2020-09-25 14:28:54,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 14:28:54,263 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 53 [2020-09-25 14:28:54,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:28:54,267 INFO L225 Difference]: With dead ends: 75 [2020-09-25 14:28:54,268 INFO L226 Difference]: Without dead ends: 69 [2020-09-25 14:28:54,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:28:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-09-25 14:28:54,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2020-09-25 14:28:54,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-25 14:28:54,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 92 transitions. [2020-09-25 14:28:54,284 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 92 transitions. Word has length 53 [2020-09-25 14:28:54,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:28:54,285 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 92 transitions. [2020-09-25 14:28:54,285 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-25 14:28:54,285 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 92 transitions. [2020-09-25 14:28:54,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-09-25 14:28:54,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:28:54,290 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:28:54,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:28:54,290 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:28:54,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:28:54,291 INFO L82 PathProgramCache]: Analyzing trace with hash 1817818703, now seen corresponding path program 2 times [2020-09-25 14:28:54,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:28:54,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [982881748] [2020-09-25 14:28:54,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:28:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:54,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:54,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:54,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:57,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:57,373 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-09-25 14:28:57,373 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:28:57,373 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3062 [2020-09-25 14:28:57,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:57,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:57,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:28:57,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-25 14:28:57,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 14:28:57,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:57,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:28:57,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:57,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:57,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:57,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:28:57,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:57,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:28:57,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:57,398 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:57,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:57,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:28:57,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:28:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:57,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:57,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:57,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,673 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 14:28:59,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:28:59,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2263 [2020-09-25 14:28:59,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:28:59,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:59,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-25 14:28:59,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:59,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:28:59,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 14:28:59,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:59,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 14:28:59,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:28:59,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:59,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 14:28:59,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:59,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:28:59,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:28:59,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:59,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:28:59,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:59,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:59,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:59,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:28:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:28:59,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:59,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:28:59,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:59,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:59,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:59,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:59,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:28:59,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:28:59,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:59,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:28:59,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:28:59,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:59,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:28:59,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:28:59,812 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 14:28:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:28:59,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:28:59,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:28:59,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:28:59,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:28:59,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-25 14:28:59,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:28:59,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:28:59,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:28:59,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:28:59,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:28:59,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:28:59,885 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 32 proven. 13 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-09-25 14:28:59,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [982881748] [2020-09-25 14:28:59,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:28:59,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-25 14:28:59,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832231506] [2020-09-25 14:28:59,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:28:59,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:28:59,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:28:59,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:28:59,889 INFO L87 Difference]: Start difference. First operand 69 states and 92 transitions. Second operand 6 states. [2020-09-25 14:29:00,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:00,015 INFO L93 Difference]: Finished difference Result 96 states and 149 transitions. [2020-09-25 14:29:00,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-25 14:29:00,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2020-09-25 14:29:00,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:00,020 INFO L225 Difference]: With dead ends: 96 [2020-09-25 14:29:00,020 INFO L226 Difference]: Without dead ends: 90 [2020-09-25 14:29:00,021 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-09-25 14:29:00,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-09-25 14:29:00,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2020-09-25 14:29:00,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-09-25 14:29:00,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 143 transitions. [2020-09-25 14:29:00,040 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 143 transitions. Word has length 72 [2020-09-25 14:29:00,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:00,041 INFO L479 AbstractCegarLoop]: Abstraction has 90 states and 143 transitions. [2020-09-25 14:29:00,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:29:00,041 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 143 transitions. [2020-09-25 14:29:00,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-09-25 14:29:00,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:00,048 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 17, 11, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:00,049 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:29:00,049 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:00,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:00,050 INFO L82 PathProgramCache]: Analyzing trace with hash -1454565455, now seen corresponding path program 3 times [2020-09-25 14:29:00,050 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:00,050 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1337529966] [2020-09-25 14:29:00,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:00,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:00,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:00,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:05,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:05,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-09-25 14:29:05,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:29:05,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-09-25 14:29:05,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:05,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:05,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:29:05,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 34 [2020-09-25 14:29:05,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 14:29:05,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:05,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:05,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:05,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:05,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:05,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:05,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:05,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:05,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:05,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:05,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:05,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:29:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:05,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:05,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:05,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:05,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:10,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:10,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 14:29:10,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:29:10,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 14:29:10,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:10,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:10,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 14:29:10,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-09-25 14:29:10,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 14:29:10,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:10,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:10,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:10,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:10,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:10,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:10,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:10,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:10,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:14,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:14,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:14,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 14:29:15,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-09-25 14:29:15,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:29:15,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:29:15,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:29:15,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-09-25 14:29:15,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:15,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:15,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:15,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 14:29:15,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:15,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 549 [2020-09-25 14:29:15,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:15,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:29:15,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:15,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-09-25 14:29:15,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:15,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:15,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:15,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:15,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:16,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 14:29:16,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:16,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-09-25 14:29:16,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:16,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:29:16,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:16,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 14:29:16,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:16,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:16,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:16,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:16,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:29:16,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:16,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-25 14:29:16,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:16,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:16,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:16,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:16,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:29:16,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:16,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:16,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:16,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:16,383 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:16,383 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:16,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:16,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:16,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:16,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:16,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:16,384 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:16,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:29:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:16,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:16,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:16,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:16,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-09-25 14:29:16,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:16,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:16,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:16,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:16,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:16,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:16,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 14:29:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:16,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:16,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:17,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:17,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 14:29:17,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:29:17,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 950 [2020-09-25 14:29:17,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:17,395 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:17,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 14:29:17,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 55 [2020-09-25 14:29:17,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:17,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:17,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:17,520 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:17,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:17,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:17,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:18,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 14:29:18,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:29:18,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 918 [2020-09-25 14:29:18,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:18,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:18,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:18,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:18,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-09-25 14:29:18,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:18,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:18,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:18,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:18,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:29:18,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:18,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:29:18,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:18,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:18,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:18,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:18,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-09-25 14:29:18,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:18,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:18,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:18,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:18,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:18,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:18,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:18,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:18,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:18,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:18,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:18,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:18,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:18,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:29:18,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:18,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:18,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:18,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:18,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:29:18,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:18,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:18,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:18,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:18,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:18,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:18,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2020-09-25 14:29:18,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:18,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:18,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 14:29:18,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:18,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 14:29:18,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:18,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:18,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-09-25 14:29:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:18,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:18,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:18,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:18,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:18,577 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 14:29:18,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:18,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:29:18,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:18,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:18,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:18,578 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:18,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:18,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:18,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:18,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:29:18,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:18,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:29:18,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:18,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:18,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:18,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:18,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:18,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:18,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:18,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:18,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:18,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:18,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:18,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:18,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:18,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:18,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:18,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:18,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:29:18,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:18,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:18,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:18,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:18,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:18,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:29:18,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:18,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:18,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:18,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:18,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:18,667 INFO L134 CoverageAnalysis]: Checked inductivity of 880 backedges. 167 proven. 278 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2020-09-25 14:29:18,668 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1337529966] [2020-09-25 14:29:18,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:18,668 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:29:18,669 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172765008] [2020-09-25 14:29:18,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:29:18,670 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:18,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:29:18,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:29:18,670 INFO L87 Difference]: Start difference. First operand 90 states and 143 transitions. Second operand 10 states. [2020-09-25 14:29:18,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:18,965 INFO L93 Difference]: Finished difference Result 191 states and 364 transitions. [2020-09-25 14:29:18,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 14:29:18,968 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 179 [2020-09-25 14:29:18,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:18,971 INFO L225 Difference]: With dead ends: 191 [2020-09-25 14:29:18,971 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 14:29:18,973 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 36 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-25 14:29:18,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 14:29:18,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-09-25 14:29:18,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 14:29:18,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 161 transitions. [2020-09-25 14:29:18,995 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 161 transitions. Word has length 179 [2020-09-25 14:29:18,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:18,996 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 161 transitions. [2020-09-25 14:29:18,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:29:18,996 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 161 transitions. [2020-09-25 14:29:19,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-09-25 14:29:19,002 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:19,003 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 7, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:19,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 14:29:19,003 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:19,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:19,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1778048969, now seen corresponding path program 4 times [2020-09-25 14:29:19,004 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:19,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1239672841] [2020-09-25 14:29:19,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:19,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:19,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:19,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:24,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:24,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-09-25 14:29:24,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:24,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-09-25 14:29:24,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:24,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:24,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:29:24,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 98 [2020-09-25 14:29:24,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 14:29:24,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:24,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:24,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:24,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:24,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:24,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:24,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:24,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:24,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:24,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:24,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:24,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:24,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:24,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:24,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:29:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:24,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:24,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:29,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:29,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-09-25 14:29:29,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:29,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4956 [2020-09-25 14:29:29,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:29,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:29,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-09-25 14:29:29,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:29:29,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-09-25 14:29:29,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:29,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:29,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:29,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 14:29:32,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:29:32,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3111 [2020-09-25 14:29:32,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-09-25 14:29:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-25 14:29:32,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:32,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,199 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,212 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,212 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 14:29:32,212 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 14:29:32,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:32,213 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:32,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:32,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,234 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 14:29:32,235 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,235 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-25 14:29:32,235 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:32,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:32,236 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:32,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,248 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:29:32,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:29:32,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:32,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:32,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:32,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:32,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:32,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,260 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:32,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:32,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:32,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:29:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:32,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:32,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:32,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:32,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:32,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 14:29:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:29:32,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-25 14:29:32,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:29:32,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 14:29:32,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:32,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:32,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:29:32,344 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:32,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:32,345 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:32,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 14:29:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:29:32,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-09-25 14:29:32,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:32,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 14:29:32,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 14:29:32,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:32,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:32,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:32,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:32,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:32,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:32,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:29:32,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:32,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:32,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:32,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:32,481 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 124 proven. 16 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2020-09-25 14:29:32,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1239672841] [2020-09-25 14:29:32,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:32,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-25 14:29:32,483 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381309843] [2020-09-25 14:29:32,483 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 14:29:32,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:32,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 14:29:32,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-09-25 14:29:32,484 INFO L87 Difference]: Start difference. First operand 114 states and 161 transitions. Second operand 10 states. [2020-09-25 14:29:32,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:32,917 INFO L93 Difference]: Finished difference Result 343 states and 633 transitions. [2020-09-25 14:29:32,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-25 14:29:32,923 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 121 [2020-09-25 14:29:32,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:32,928 INFO L225 Difference]: With dead ends: 343 [2020-09-25 14:29:32,929 INFO L226 Difference]: Without dead ends: 245 [2020-09-25 14:29:32,931 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=442, Unknown=0, NotChecked=0, Total=600 [2020-09-25 14:29:32,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2020-09-25 14:29:32,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 151. [2020-09-25 14:29:32,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-09-25 14:29:32,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 241 transitions. [2020-09-25 14:29:32,997 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 241 transitions. Word has length 121 [2020-09-25 14:29:32,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:33,001 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 241 transitions. [2020-09-25 14:29:33,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 14:29:33,002 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 241 transitions. [2020-09-25 14:29:33,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 14:29:33,006 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:33,006 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:33,006 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-25 14:29:33,006 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:33,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:33,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1212339617, now seen corresponding path program 5 times [2020-09-25 14:29:33,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:33,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1874174551] [2020-09-25 14:29:33,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:33,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:33,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-09-25 14:29:33,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:33,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 830 [2020-09-25 14:29:33,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:33,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:29:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-09-25 14:29:33,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:29:33,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:33,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:29:33,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:33,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:33,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:29:33,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:33,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:29:33,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:33,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:33,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:33,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:33,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:33,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:33,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 14:29:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:33,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:34,672 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:34,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-09-25 14:29:34,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:34,673 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 740 [2020-09-25 14:29:34,673 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:34,673 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:34,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:29:34,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-09-25 14:29:34,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:29:34,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:34,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:34,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:34,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,034 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-09-25 14:29:35,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 339 [2020-09-25 14:29:35,034 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-09-25 14:29:35,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-09-25 14:29:35,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:29:35,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:35,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-09-25 14:29:35,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 187 [2020-09-25 14:29:35,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-09-25 14:29:35,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-09-25 14:29:35,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:35,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:35,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 14:29:35,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-09-25 14:29:35,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-25 14:29:35,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 42 [2020-09-25 14:29:35,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:29:35,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:35,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,477 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:29:35,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-25 14:29:35,478 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-09-25 14:29:35,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 14:29:35,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:35,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:35,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:29:35,516 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:29:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:35,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:35,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:29:35,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:35,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:29:35,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 14:29:35,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 14:29:35,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:35,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-25 14:29:35,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:29:35,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-25 14:29:35,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,606 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:29:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 4 [2020-09-25 14:29:35,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-09-25 14:29:35,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:35,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:35,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:35,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:29:35,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:29:35,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 14:29:35,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:29:35,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-09-25 14:29:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-09-25 14:29:35,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-09-25 14:29:35,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:35,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 67 [2020-09-25 14:29:35,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:35,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:35,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-09-25 14:29:35,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-25 14:29:35,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:35,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:35,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:35,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-09-25 14:29:35,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:29:35,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:35,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:35,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2020-09-25 14:29:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:35,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:29:35,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:35,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:35,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-25 14:29:35,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:35,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:35,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:35,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:35,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:35,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-09-25 14:29:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:35,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:35,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:29:35,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-09-25 14:29:35,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:29:35,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:29:35,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:29:35,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:29:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:29:35,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:29:35,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:29:35,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:29:35,882 INFO L134 CoverageAnalysis]: Checked inductivity of 670 backedges. 94 proven. 194 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2020-09-25 14:29:35,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1874174551] [2020-09-25 14:29:35,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 14:29:35,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-09-25 14:29:35,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002287406] [2020-09-25 14:29:35,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-25 14:29:35,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:29:35,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-25 14:29:35,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2020-09-25 14:29:35,886 INFO L87 Difference]: Start difference. First operand 151 states and 241 transitions. Second operand 13 states. [2020-09-25 14:29:36,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:29:36,345 INFO L93 Difference]: Finished difference Result 249 states and 429 transitions. [2020-09-25 14:29:36,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 14:29:36,346 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 159 [2020-09-25 14:29:36,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:29:36,352 INFO L225 Difference]: With dead ends: 249 [2020-09-25 14:29:36,352 INFO L226 Difference]: Without dead ends: 114 [2020-09-25 14:29:36,357 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=147, Invalid=503, Unknown=0, NotChecked=0, Total=650 [2020-09-25 14:29:36,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-25 14:29:36,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-09-25 14:29:36,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-09-25 14:29:36,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 153 transitions. [2020-09-25 14:29:36,392 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 153 transitions. Word has length 159 [2020-09-25 14:29:36,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:29:36,393 INFO L479 AbstractCegarLoop]: Abstraction has 114 states and 153 transitions. [2020-09-25 14:29:36,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-25 14:29:36,393 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 153 transitions. [2020-09-25 14:29:36,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-09-25 14:29:36,398 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:29:36,398 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 9, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:29:36,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-25 14:29:36,399 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:29:36,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:29:36,399 INFO L82 PathProgramCache]: Analyzing trace with hash 1276982865, now seen corresponding path program 6 times [2020-09-25 14:29:36,400 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:29:36,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1084059355] [2020-09-25 14:29:36,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:29:36,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:29:36,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:29:36,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking...