/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/recursive-simple/id_o200.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 17:25:12,833 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 17:25:12,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 17:25:12,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 17:25:12,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 17:25:12,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 17:25:12,912 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 17:25:12,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 17:25:12,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 17:25:12,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 17:25:12,929 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 17:25:12,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 17:25:12,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 17:25:12,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 17:25:12,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 17:25:12,940 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 17:25:12,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 17:25:12,945 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 17:25:12,948 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 17:25:12,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 17:25:12,959 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 17:25:12,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 17:25:12,963 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 17:25:12,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 17:25:12,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 17:25:12,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 17:25:12,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 17:25:12,994 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 17:25:12,994 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 17:25:12,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 17:25:12,996 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 17:25:12,997 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 17:25:13,000 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 17:25:13,001 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 17:25:13,002 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 17:25:13,003 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 17:25:13,004 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 17:25:13,004 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 17:25:13,004 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 17:25:13,006 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 17:25:13,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 17:25:13,015 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 17:25:13,068 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 17:25:13,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 17:25:13,073 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 17:25:13,074 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 17:25:13,074 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 17:25:13,075 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 17:25:13,075 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 17:25:13,075 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 17:25:13,076 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 17:25:13,076 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 17:25:13,077 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 17:25:13,078 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 17:25:13,078 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 17:25:13,078 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 17:25:13,079 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 17:25:13,079 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 17:25:13,079 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 17:25:13,079 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 17:25:13,080 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 17:25:13,080 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 17:25:13,080 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 17:25:13,081 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:25:13,081 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 17:25:13,081 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 17:25:13,081 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 17:25:13,082 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 17:25:13,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 17:25:13,082 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 17:25:13,083 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 17:25:13,083 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 17:25:13,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 17:25:13,606 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 17:25:13,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 17:25:13,611 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 17:25:13,612 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 17:25:13,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o200.c [2020-10-28 17:25:13,698 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1b0c8190/7e23d4e99c6a4a1486d78a0be98a7c55/FLAGc18ed1f79 [2020-10-28 17:25:14,255 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 17:25:14,256 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o200.c [2020-10-28 17:25:14,264 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1b0c8190/7e23d4e99c6a4a1486d78a0be98a7c55/FLAGc18ed1f79 [2020-10-28 17:25:14,647 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1b0c8190/7e23d4e99c6a4a1486d78a0be98a7c55 [2020-10-28 17:25:14,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 17:25:14,660 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 17:25:14,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 17:25:14,666 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 17:25:14,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 17:25:14,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:25:14" (1/1) ... [2020-10-28 17:25:14,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c02c625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:14, skipping insertion in model container [2020-10-28 17:25:14,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 05:25:14" (1/1) ... [2020-10-28 17:25:14,688 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 17:25:14,705 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 17:25:14,928 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:25:14,950 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 17:25:14,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 17:25:14,986 INFO L208 MainTranslator]: Completed translation [2020-10-28 17:25:14,988 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:14 WrapperNode [2020-10-28 17:25:14,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 17:25:14,990 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 17:25:14,990 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 17:25:14,990 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 17:25:15,005 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:14" (1/1) ... [2020-10-28 17:25:15,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:14" (1/1) ... [2020-10-28 17:25:15,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:14" (1/1) ... [2020-10-28 17:25:15,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:14" (1/1) ... [2020-10-28 17:25:15,028 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:14" (1/1) ... [2020-10-28 17:25:15,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:14" (1/1) ... [2020-10-28 17:25:15,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:14" (1/1) ... [2020-10-28 17:25:15,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 17:25:15,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 17:25:15,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 17:25:15,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 17:25:15,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 17:25:15,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 17:25:15,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 17:25:15,120 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 17:25:15,121 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-28 17:25:15,121 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 17:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-28 17:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 17:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 17:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 17:25:15,121 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 17:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-28 17:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 17:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 17:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 17:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 17:25:15,122 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 17:25:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 17:25:15,123 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 17:25:15,360 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 17:25:15,360 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-28 17:25:15,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:25:15 BoogieIcfgContainer [2020-10-28 17:25:15,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 17:25:15,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 17:25:15,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 17:25:15,368 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 17:25:15,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 05:25:14" (1/3) ... [2020-10-28 17:25:15,369 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7361496e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:25:15, skipping insertion in model container [2020-10-28 17:25:15,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 05:25:14" (2/3) ... [2020-10-28 17:25:15,370 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7361496e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 05:25:15, skipping insertion in model container [2020-10-28 17:25:15,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 05:25:15" (3/3) ... [2020-10-28 17:25:15,372 INFO L111 eAbstractionObserver]: Analyzing ICFG id_o200.c [2020-10-28 17:25:15,385 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 17:25:15,390 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 17:25:15,404 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 17:25:15,441 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 17:25:15,441 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 17:25:15,441 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 17:25:15,442 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 17:25:15,442 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 17:25:15,442 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 17:25:15,442 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 17:25:15,442 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 17:25:15,458 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-28 17:25:15,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-28 17:25:15,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:15,465 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:15,465 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:15,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:15,472 INFO L82 PathProgramCache]: Analyzing trace with hash 560135365, now seen corresponding path program 1 times [2020-10-28 17:25:15,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:15,482 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719783751] [2020-10-28 17:25:15,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:15,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:15,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:15,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:15,952 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:15,952 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:15,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-28 17:25:15,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:15,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:15,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 17:25:15,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-28 17:25:15,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:15,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 17:25:16,182 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 5 [2020-10-28 17:25:16,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:16,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:16,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:16,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:16,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:16,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:16,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 17:25:16,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:16,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:16,350 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:16,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:16,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:16,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:16,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:16,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:16,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:16,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:16,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 17:25:16,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:16,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:16,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:16,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:16,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:16,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:16,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 17:25:16,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719783751] [2020-10-28 17:25:16,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 17:25:16,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 17:25:16,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690327525] [2020-10-28 17:25:16,473 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 17:25:16,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:16,489 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 17:25:16,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-28 17:25:16,492 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2020-10-28 17:25:16,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:16,767 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2020-10-28 17:25:16,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-28 17:25:16,769 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-28 17:25:16,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:16,780 INFO L225 Difference]: With dead ends: 38 [2020-10-28 17:25:16,780 INFO L226 Difference]: Without dead ends: 20 [2020-10-28 17:25:16,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-28 17:25:16,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-28 17:25:16,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-28 17:25:16,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-28 17:25:16,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-28 17:25:16,836 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-10-28 17:25:16,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:16,837 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-28 17:25:16,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 17:25:16,837 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-28 17:25:16,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-28 17:25:16,839 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:16,840 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:16,840 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 17:25:16,840 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:16,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:16,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1295611761, now seen corresponding path program 1 times [2020-10-28 17:25:16,842 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:16,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333095637] [2020-10-28 17:25:16,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:16,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:16,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:17,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:17,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:17,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:17,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-28 17:25:17,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:17,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 17:25:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 17:25:17,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-28 17:25:17,059 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:17,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:17,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:17,165 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:17,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:17,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:17,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:17,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:17,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:17,172 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:17,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:17,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:17,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:17,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:17,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:17,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:17,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:17,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:17,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:17,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 17:25:17,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:17,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:17,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:17,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:17,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:17,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:17,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:17,259 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:17,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:17,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:17,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:25:17,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:17,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:17,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:17,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:17,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:17,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-28 17:25:17,282 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333095637] [2020-10-28 17:25:17,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:17,283 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 17:25:17,283 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524835297] [2020-10-28 17:25:17,284 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 17:25:17,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:17,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 17:25:17,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-28 17:25:17,286 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-10-28 17:25:17,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:17,557 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-28 17:25:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 17:25:17,558 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-28 17:25:17,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:17,559 INFO L225 Difference]: With dead ends: 28 [2020-10-28 17:25:17,559 INFO L226 Difference]: Without dead ends: 23 [2020-10-28 17:25:17,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-28 17:25:17,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-28 17:25:17,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-28 17:25:17,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-28 17:25:17,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-10-28 17:25:17,569 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2020-10-28 17:25:17,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:17,569 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-10-28 17:25:17,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 17:25:17,569 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-10-28 17:25:17,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-28 17:25:17,571 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:17,571 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:17,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 17:25:17,571 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:17,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:17,572 INFO L82 PathProgramCache]: Analyzing trace with hash -116387003, now seen corresponding path program 2 times [2020-10-28 17:25:17,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:17,573 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2071048909] [2020-10-28 17:25:17,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:17,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:17,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:17,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:17,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:17,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:17,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 219 [2020-10-28 17:25:17,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:17,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-28 17:25:17,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-28 17:25:17,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-28 17:25:17,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:17,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:17,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:17,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:17,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:17,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:17,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:17,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:17,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:17,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:17,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:17,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:17,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:17,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:17,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:17,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:17,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-28 17:25:17,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:17,958 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:17,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:17,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:17,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:17,959 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:17,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:17,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:17,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:18,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:18,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:18,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:18,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 17:25:18,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:18,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:18,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:18,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:18,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:18,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:18,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:18,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:18,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:18,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:18,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:18,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:18,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:25:18,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:18,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:18,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:18,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:18,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:18,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:18,087 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-28 17:25:18,088 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2071048909] [2020-10-28 17:25:18,088 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:18,088 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 17:25:18,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77707450] [2020-10-28 17:25:18,089 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 17:25:18,089 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:18,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 17:25:18,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-28 17:25:18,090 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 10 states. [2020-10-28 17:25:18,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:18,474 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-28 17:25:18,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 17:25:18,474 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-10-28 17:25:18,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:18,476 INFO L225 Difference]: With dead ends: 31 [2020-10-28 17:25:18,477 INFO L226 Difference]: Without dead ends: 26 [2020-10-28 17:25:18,478 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-10-28 17:25:18,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-28 17:25:18,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-28 17:25:18,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-28 17:25:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-28 17:25:18,495 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 27 [2020-10-28 17:25:18,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:18,495 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-28 17:25:18,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 17:25:18,495 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-28 17:25:18,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-28 17:25:18,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:18,498 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:18,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 17:25:18,498 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:18,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:18,500 INFO L82 PathProgramCache]: Analyzing trace with hash -738125937, now seen corresponding path program 3 times [2020-10-28 17:25:18,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:18,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1995499936] [2020-10-28 17:25:18,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:18,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:18,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:18,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:18,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:18,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:18,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-10-28 17:25:18,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:18,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-28 17:25:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-28 17:25:18,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-28 17:25:18,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:18,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:18,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:18,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:18,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:18,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:18,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:18,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:18,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:18,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:18,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:18,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:18,893 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:18,893 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:18,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:18,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:18,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:18,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:18,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:18,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:18,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-28 17:25:18,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:18,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:18,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:18,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:18,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:19,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:19,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:19,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:19,072 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:19,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:19,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:19,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 17:25:19,073 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:19,073 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:19,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:19,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:19,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:19,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:19,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:19,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:19,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:19,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:19,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:19,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 17:25:19,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:19,141 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:19,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:19,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:19,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:19,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:19,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:19,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:19,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:19,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:19,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:25:19,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:19,346 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:19,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:19,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:19,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:19,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:19,374 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-28 17:25:19,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1995499936] [2020-10-28 17:25:19,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:19,375 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-28 17:25:19,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554342806] [2020-10-28 17:25:19,378 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-28 17:25:19,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:19,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-28 17:25:19,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-28 17:25:19,381 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 12 states. [2020-10-28 17:25:19,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:19,997 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-28 17:25:19,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 17:25:19,998 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2020-10-28 17:25:19,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:20,000 INFO L225 Difference]: With dead ends: 34 [2020-10-28 17:25:20,001 INFO L226 Difference]: Without dead ends: 29 [2020-10-28 17:25:20,002 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2020-10-28 17:25:20,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-28 17:25:20,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-28 17:25:20,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-28 17:25:20,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-28 17:25:20,009 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 33 [2020-10-28 17:25:20,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:20,010 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-28 17:25:20,010 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-28 17:25:20,010 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-28 17:25:20,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-28 17:25:20,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:20,011 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:20,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 17:25:20,012 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:20,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:20,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1342585285, now seen corresponding path program 4 times [2020-10-28 17:25:20,013 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:20,013 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [888274187] [2020-10-28 17:25:20,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:20,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:20,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:20,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:20,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:20,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:20,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 261 [2020-10-28 17:25:20,289 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:20,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:20,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-28 17:25:20,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 17:25:20,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-28 17:25:20,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:20,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:20,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:20,367 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:20,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:20,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:20,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:20,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:20,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:20,373 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:20,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:20,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:20,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:20,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:20,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:20,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:20,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:20,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:20,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:20,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 132 [2020-10-28 17:25:20,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:20,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:20,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:20,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:20,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:20,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:20,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:20,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:20,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:20,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:20,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-28 17:25:20,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:20,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:20,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:20,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:20,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:20,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:20,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:20,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:20,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:20,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:20,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:20,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 17:25:20,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:20,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:20,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:20,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:20,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:20,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:20,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:20,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:20,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:20,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:20,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:20,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:20,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 17:25:20,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:20,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:20,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:20,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:20,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:20,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:20,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:20,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:20,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:20,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:20,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:20,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:20,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:20,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:20,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:20,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:20,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:20,911 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:20,941 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-28 17:25:20,941 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [888274187] [2020-10-28 17:25:20,942 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:20,942 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-28 17:25:20,942 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567995911] [2020-10-28 17:25:20,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-28 17:25:20,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:20,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-28 17:25:20,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-28 17:25:20,944 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 14 states. [2020-10-28 17:25:21,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:21,735 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-28 17:25:21,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-28 17:25:21,736 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 39 [2020-10-28 17:25:21,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:21,737 INFO L225 Difference]: With dead ends: 37 [2020-10-28 17:25:21,737 INFO L226 Difference]: Without dead ends: 32 [2020-10-28 17:25:21,738 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2020-10-28 17:25:21,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-28 17:25:21,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-28 17:25:21,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-28 17:25:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-10-28 17:25:21,747 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 39 [2020-10-28 17:25:21,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:21,747 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-10-28 17:25:21,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-28 17:25:21,747 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-10-28 17:25:21,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-28 17:25:21,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:21,749 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:21,749 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 17:25:21,749 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:21,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:21,750 INFO L82 PathProgramCache]: Analyzing trace with hash 1660180111, now seen corresponding path program 5 times [2020-10-28 17:25:21,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:21,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [527916106] [2020-10-28 17:25:21,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:21,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:21,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:22,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:22,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:22,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:22,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 402 [2020-10-28 17:25:22,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:22,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-28 17:25:22,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-28 17:25:22,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-28 17:25:22,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:22,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:22,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:22,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:22,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:22,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:22,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:22,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:25:22,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:22,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:22,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:22,264 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:22,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:22,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:22,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:22,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:22,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:22,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-28 17:25:22,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:22,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:22,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:22,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:22,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:22,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:22,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:22,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:22,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:22,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:22,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-28 17:25:22,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:22,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:22,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:22,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:22,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:22,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:22,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:22,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:22,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:22,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:22,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-28 17:25:22,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:22,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:22,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:22,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:22,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:22,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:22,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:22,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:22,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:22,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:22,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:22,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:22,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-28 17:25:22,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:22,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:22,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:22,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:22,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:23,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:23,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:23,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:23,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:23,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:23,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 17:25:23,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:23,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:23,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:23,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:23,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:23,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:23,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:23,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:23,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:23,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:23,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:25:23,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:23,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:23,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:23,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:23,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:23,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:23,172 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-28 17:25:23,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [527916106] [2020-10-28 17:25:23,174 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:23,174 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-28 17:25:23,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700006261] [2020-10-28 17:25:23,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-28 17:25:23,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:23,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-28 17:25:23,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2020-10-28 17:25:23,176 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 16 states. [2020-10-28 17:25:24,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:24,098 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-28 17:25:24,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-28 17:25:24,099 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2020-10-28 17:25:24,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:24,101 INFO L225 Difference]: With dead ends: 40 [2020-10-28 17:25:24,101 INFO L226 Difference]: Without dead ends: 35 [2020-10-28 17:25:24,102 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2020-10-28 17:25:24,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-28 17:25:24,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-28 17:25:24,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-28 17:25:24,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-28 17:25:24,110 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 45 [2020-10-28 17:25:24,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:24,111 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-28 17:25:24,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-28 17:25:24,111 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-28 17:25:24,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-28 17:25:24,113 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:24,113 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:24,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 17:25:24,114 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:24,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:24,114 INFO L82 PathProgramCache]: Analyzing trace with hash 1624338501, now seen corresponding path program 6 times [2020-10-28 17:25:24,115 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:24,115 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170187468] [2020-10-28 17:25:24,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:24,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:24,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:24,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:24,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:24,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 418 [2020-10-28 17:25:24,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:24,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:24,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-28 17:25:24,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-28 17:25:24,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-28 17:25:24,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:24,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:24,682 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:24,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:24,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:24,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:24,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:24,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:24,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:24,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:24,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:24,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:24,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:24,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:24,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:24,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:25,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-28 17:25:25,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:25,007 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:25,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:25,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:25,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 183 [2020-10-28 17:25:25,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:25,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:25,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:25,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:25,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:25,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 17:25:25,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:25,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:25,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:25,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:25,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-28 17:25:25,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:25,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:25,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:25,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:25,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,739 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:25,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-28 17:25:25,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:25,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:25,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:25,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:25,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:25,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:25,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 17:25:25,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:25,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:25,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:25,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:25,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:25,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:25,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:25,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:25,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:25,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:25,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:25,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:25,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:25,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:25,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:25,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:25,983 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-28 17:25:25,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170187468] [2020-10-28 17:25:25,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:25,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-28 17:25:25,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403705531] [2020-10-28 17:25:25,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-28 17:25:25,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:25,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-28 17:25:25,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2020-10-28 17:25:25,987 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 18 states. [2020-10-28 17:25:27,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:27,022 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-28 17:25:27,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-28 17:25:27,023 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 51 [2020-10-28 17:25:27,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:27,024 INFO L225 Difference]: With dead ends: 43 [2020-10-28 17:25:27,024 INFO L226 Difference]: Without dead ends: 38 [2020-10-28 17:25:27,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=963, Unknown=0, NotChecked=0, Total=1056 [2020-10-28 17:25:27,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-28 17:25:27,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-28 17:25:27,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-28 17:25:27,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-10-28 17:25:27,040 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 51 [2020-10-28 17:25:27,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:27,041 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-10-28 17:25:27,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-28 17:25:27,043 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-10-28 17:25:27,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-28 17:25:27,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:27,046 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:27,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 17:25:27,047 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:27,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:27,047 INFO L82 PathProgramCache]: Analyzing trace with hash 502547855, now seen corresponding path program 7 times [2020-10-28 17:25:27,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:27,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711675704] [2020-10-28 17:25:27,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:27,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:27,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:27,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:25:27,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:27,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 600 [2020-10-28 17:25:27,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:27,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:27,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-28 17:25:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-28 17:25:27,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-28 17:25:27,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:27,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:27,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:27,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:27,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:27,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:27,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:27,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:27,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:27,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:27,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:27,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:27,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:27,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:28,123 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:28,123 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:28,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:28,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 356 [2020-10-28 17:25:28,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:28,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:28,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:28,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:28,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:28,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:28,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:28,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:28,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:28,405 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:28,405 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:28,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 237 [2020-10-28 17:25:28,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:28,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:28,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:28,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:28,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:28,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:28,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:28,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:28,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:28,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:28,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:28,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:28,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 166 [2020-10-28 17:25:28,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:28,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:28,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:28,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:28,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:28,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:28,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:28,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:28,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:28,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:28,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:28,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-28 17:25:28,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:28,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:28,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:28,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:28,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:28,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:28,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:28,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:28,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:28,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:28,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 17:25:28,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:28,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:28,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:28,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:28,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:28,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:28,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:28,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:28,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:28,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:28,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:28,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:28,993 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 17:25:28,993 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:28,993 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:28,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:28,994 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:29,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:29,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:29,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:29,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:29,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:29,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:25:29,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:29,070 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:29,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:29,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:29,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:29,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:29,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:29,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:29,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:29,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:29,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:29,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:29,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:29,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:29,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:29,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:29,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:29,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-28 17:25:29,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711675704] [2020-10-28 17:25:29,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:29,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-28 17:25:29,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390517710] [2020-10-28 17:25:29,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-28 17:25:29,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:29,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-28 17:25:29,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2020-10-28 17:25:29,196 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 20 states. [2020-10-28 17:25:30,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:30,561 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-28 17:25:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-28 17:25:30,562 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 57 [2020-10-28 17:25:30,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:30,563 INFO L225 Difference]: With dead ends: 46 [2020-10-28 17:25:30,564 INFO L226 Difference]: Without dead ends: 41 [2020-10-28 17:25:30,565 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=105, Invalid=1227, Unknown=0, NotChecked=0, Total=1332 [2020-10-28 17:25:30,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-28 17:25:30,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-28 17:25:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-28 17:25:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-28 17:25:30,572 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 57 [2020-10-28 17:25:30,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:30,573 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-28 17:25:30,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-28 17:25:30,573 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-28 17:25:30,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-28 17:25:30,574 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:30,574 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:30,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 17:25:30,575 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:30,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:30,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1459767611, now seen corresponding path program 8 times [2020-10-28 17:25:30,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:30,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153199966] [2020-10-28 17:25:30,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:30,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:30,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:31,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:31,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:25:31,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:31,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 630 [2020-10-28 17:25:31,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:31,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-28 17:25:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-28 17:25:31,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:31,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:31,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:31,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:31,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:31,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:31,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:31,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:31,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:31,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:31,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:31,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:31,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:31,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:31,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:31,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:31,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:31,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:31,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:31,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 486 [2020-10-28 17:25:31,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:31,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:31,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:25:31,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:31,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:25:31,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:31,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:31,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:32,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:32,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:32,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:32,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 357 [2020-10-28 17:25:32,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:32,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:32,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:32,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:32,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:32,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:32,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:32,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:32,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:32,486 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:32,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:32,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:32,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 218 [2020-10-28 17:25:32,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:32,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:32,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:32,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:32,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:32,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:32,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:32,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:32,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:32,698 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:32,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 157 [2020-10-28 17:25:32,699 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:32,699 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:32,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:32,699 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:32,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:32,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:32,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:32,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:32,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:32,852 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:32,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 17:25:32,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:32,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:32,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:32,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:32,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:32,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:32,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:32,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:32,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:32,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-28 17:25:32,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:32,977 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:32,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:32,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:33,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:33,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:33,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:33,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:33,070 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:33,070 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:33,070 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 17:25:33,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:33,071 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:33,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:33,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:33,071 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:33,071 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:33,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:33,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:33,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:33,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:33,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:33,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:33,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:25:33,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:33,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:33,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:33,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:33,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:33,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:33,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:33,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:33,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:33,228 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 17:25:33,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:33,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:33,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:33,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:33,229 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:33,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:33,286 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-28 17:25:33,286 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153199966] [2020-10-28 17:25:33,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:33,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-28 17:25:33,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692613564] [2020-10-28 17:25:33,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-28 17:25:33,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:33,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-28 17:25:33,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2020-10-28 17:25:33,288 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 22 states. [2020-10-28 17:25:34,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:34,939 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-28 17:25:34,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-28 17:25:34,940 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 63 [2020-10-28 17:25:34,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:34,942 INFO L225 Difference]: With dead ends: 49 [2020-10-28 17:25:34,942 INFO L226 Difference]: Without dead ends: 44 [2020-10-28 17:25:34,944 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640 [2020-10-28 17:25:34,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-28 17:25:34,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-28 17:25:34,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-28 17:25:34,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-10-28 17:25:34,952 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 63 [2020-10-28 17:25:34,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:34,952 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-10-28 17:25:34,952 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-28 17:25:34,952 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-10-28 17:25:34,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-28 17:25:34,954 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:34,954 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:34,954 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 17:25:34,954 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:34,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:34,955 INFO L82 PathProgramCache]: Analyzing trace with hash 273998991, now seen corresponding path program 9 times [2020-10-28 17:25:34,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:34,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690622092] [2020-10-28 17:25:34,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:34,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:34,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:35,716 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:35,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:25:35,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:35,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 736 [2020-10-28 17:25:35,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:35,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:35,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-28 17:25:35,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-28 17:25:35,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-28 17:25:35,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:35,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:35,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:35,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:35,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:35,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:35,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:25:35,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:35,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:35,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:35,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:35,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:35,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:36,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:36,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:25:36,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:36,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-10-28 17:25:36,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:36,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:25:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:36,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:25:36,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:36,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:36,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:36,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:37,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:37,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:37,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:37,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 445 [2020-10-28 17:25:37,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:37,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:37,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:25:37,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:37,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:25:37,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:37,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:37,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:37,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:37,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:37,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:37,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:37,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 300 [2020-10-28 17:25:37,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:37,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:37,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:37,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:37,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:37,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:37,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:37,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:37,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:37,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:37,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:37,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-28 17:25:37,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:37,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:37,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:37,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:37,664 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:37,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:37,750 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:37,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:37,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:37,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:37,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-28 17:25:37,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:37,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:37,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:37,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:37,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:37,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:37,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:37,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:37,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:38,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:38,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:38,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:38,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 17:25:38,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:38,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:38,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:38,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:38,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:38,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:38,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:38,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:38,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:38,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:38,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:38,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-28 17:25:38,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:38,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:38,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:38,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:38,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:38,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:38,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:38,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:38,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:38,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:38,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:38,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:38,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 17:25:38,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:38,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:38,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:38,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:38,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:38,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:38,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:38,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:38,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:38,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:25:38,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:38,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:38,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:38,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:38,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:38,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:38,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:38,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:38,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:38,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:38,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:38,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:38,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:38,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:38,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:38,458 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:38,519 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-28 17:25:38,519 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690622092] [2020-10-28 17:25:38,519 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:38,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-28 17:25:38,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631740520] [2020-10-28 17:25:38,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-28 17:25:38,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:38,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-28 17:25:38,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2020-10-28 17:25:38,522 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 24 states. [2020-10-28 17:25:40,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:40,372 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-28 17:25:40,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-28 17:25:40,372 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 69 [2020-10-28 17:25:40,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:40,374 INFO L225 Difference]: With dead ends: 52 [2020-10-28 17:25:40,375 INFO L226 Difference]: Without dead ends: 47 [2020-10-28 17:25:40,377 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=129, Invalid=1851, Unknown=0, NotChecked=0, Total=1980 [2020-10-28 17:25:40,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-28 17:25:40,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-28 17:25:40,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-28 17:25:40,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-28 17:25:40,383 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 69 [2020-10-28 17:25:40,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:40,384 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-28 17:25:40,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-28 17:25:40,384 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-28 17:25:40,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-28 17:25:40,385 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:40,386 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:40,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 17:25:40,386 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:40,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:40,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1458107067, now seen corresponding path program 10 times [2020-10-28 17:25:40,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:40,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1075486107] [2020-10-28 17:25:40,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:40,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:41,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:41,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:25:41,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:41,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 901 [2020-10-28 17:25:41,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:41,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:41,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-28 17:25:41,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-28 17:25:41,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-28 17:25:41,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:41,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:41,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:41,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:41,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:41,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:41,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:41,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:25:41,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:41,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:41,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:41,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:41,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:41,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:41,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:41,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:41,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:42,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:42,033 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:25:42,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:42,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 627 [2020-10-28 17:25:42,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:42,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:25:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:42,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:25:42,034 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:42,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:42,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:42,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:42,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:42,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:25:42,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:42,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 543 [2020-10-28 17:25:42,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:42,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:25:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:42,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:25:42,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:42,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:42,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:42,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:43,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:43,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:43,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:43,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 395 [2020-10-28 17:25:43,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:43,088 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:43,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:25:43,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:43,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:25:43,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:43,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:43,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:43,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:43,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:43,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:43,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:43,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 271 [2020-10-28 17:25:43,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:43,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:43,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:43,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:43,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:43,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:43,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:43,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:43,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:43,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:43,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:43,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:43,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-28 17:25:43,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:43,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:43,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:43,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:43,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:43,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:43,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:43,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:43,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:43,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:43,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:43,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-28 17:25:43,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:43,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:43,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:43,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:43,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:43,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:44,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:44,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:44,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:44,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:44,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:44,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-28 17:25:44,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:44,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:44,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:44,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:44,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:44,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:44,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:44,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:44,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:44,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 17:25:44,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:44,234 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:44,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:44,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:44,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:44,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:44,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:44,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:44,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:44,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:44,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:44,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 17:25:44,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:44,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:44,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:44,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:44,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:44,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:44,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:44,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:44,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:44,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:44,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:44,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:25:44,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:44,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:44,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:44,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:44,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:44,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:44,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:44,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:44,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:44,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:44,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:44,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 17:25:44,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:44,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:44,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:44,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:44,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:44,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:44,606 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-28 17:25:44,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1075486107] [2020-10-28 17:25:44,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:44,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-28 17:25:44,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383919097] [2020-10-28 17:25:44,610 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-28 17:25:44,610 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:44,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-28 17:25:44,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2020-10-28 17:25:44,611 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 26 states. [2020-10-28 17:25:46,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:46,706 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-28 17:25:46,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-28 17:25:46,706 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 75 [2020-10-28 17:25:46,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:46,708 INFO L225 Difference]: With dead ends: 55 [2020-10-28 17:25:46,708 INFO L226 Difference]: Without dead ends: 50 [2020-10-28 17:25:46,710 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=141, Invalid=2211, Unknown=0, NotChecked=0, Total=2352 [2020-10-28 17:25:46,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-28 17:25:46,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-28 17:25:46,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-28 17:25:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-10-28 17:25:46,718 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 75 [2020-10-28 17:25:46,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:46,719 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-10-28 17:25:46,719 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-28 17:25:46,719 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-10-28 17:25:46,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-28 17:25:46,720 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:46,720 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:46,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 17:25:46,720 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:46,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:46,721 INFO L82 PathProgramCache]: Analyzing trace with hash -764791921, now seen corresponding path program 11 times [2020-10-28 17:25:46,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:46,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [650108051] [2020-10-28 17:25:46,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:46,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:46,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:48,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:48,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:25:48,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:48,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1263 [2020-10-28 17:25:48,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:48,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:48,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-28 17:25:48,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-28 17:25:48,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-28 17:25:48,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:48,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:48,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:48,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:48,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:48,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 17:25:48,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:48,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:48,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:48,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:48,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:48,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:48,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:48,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:25:48,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:48,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 779 [2020-10-28 17:25:48,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:48,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:48,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:25:48,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:48,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:25:48,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:48,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:48,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:49,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:49,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:25:49,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:49,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 631 [2020-10-28 17:25:49,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:49,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:25:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:49,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:25:49,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:49,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:49,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:50,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:50,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:25:50,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:50,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-28 17:25:50,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:50,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:25:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:50,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:25:50,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:50,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:50,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:50,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:50,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:50,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:50,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:50,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-28 17:25:50,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:50,518 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:25:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:50,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:25:50,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:50,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:50,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:50,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:50,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:50,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:50,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:50,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-28 17:25:50,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:50,837 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:50,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:50,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:50,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:50,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:50,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:50,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:51,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:51,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:51,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:51,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 204 [2020-10-28 17:25:51,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:51,110 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:51,110 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:51,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:51,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:51,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:51,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:51,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:51,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:51,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:51,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-28 17:25:51,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:51,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:51,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:51,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:51,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:51,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:51,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:51,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:51,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:51,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:51,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-28 17:25:51,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:51,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:51,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:51,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:51,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:51,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:51,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:51,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:51,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:51,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:51,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:51,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:51,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 17:25:51,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:51,601 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:51,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:51,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:51,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:51,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:51,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:51,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:51,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:51,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:51,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:51,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:51,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 17:25:51,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:51,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:51,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:51,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:51,708 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:51,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:51,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:51,788 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:51,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:51,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:51,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:51,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 17:25:51,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:51,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:51,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:51,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:51,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:51,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:51,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:51,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:51,889 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:51,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:51,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:51,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 17:25:51,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:51,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:51,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:51,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:51,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:51,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:52,000 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-10-28 17:25:52,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [650108051] [2020-10-28 17:25:52,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:52,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-28 17:25:52,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211221071] [2020-10-28 17:25:52,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-28 17:25:52,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:52,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-28 17:25:52,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2020-10-28 17:25:52,002 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 28 states. [2020-10-28 17:25:54,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:25:54,434 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-28 17:25:54,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-28 17:25:54,435 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 81 [2020-10-28 17:25:54,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:25:54,437 INFO L225 Difference]: With dead ends: 58 [2020-10-28 17:25:54,438 INFO L226 Difference]: Without dead ends: 53 [2020-10-28 17:25:54,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=153, Invalid=2603, Unknown=0, NotChecked=0, Total=2756 [2020-10-28 17:25:54,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-28 17:25:54,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-28 17:25:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-28 17:25:54,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-10-28 17:25:54,446 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 81 [2020-10-28 17:25:54,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:25:54,447 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-10-28 17:25:54,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-28 17:25:54,447 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-10-28 17:25:54,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-28 17:25:54,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:25:54,452 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:25:54,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 17:25:54,452 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:25:54,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:25:54,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1532398651, now seen corresponding path program 12 times [2020-10-28 17:25:54,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:25:54,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791744657] [2020-10-28 17:25:54,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:25:54,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:54,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:55,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:55,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:25:55,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:55,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1207 [2020-10-28 17:25:55,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:55,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:55,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-28 17:25:55,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-28 17:25:55,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-28 17:25:55,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:55,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:25:55,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:55,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:55,763 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:55,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:25:55,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:55,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:25:55,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:55,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:25:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:55,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:25:55,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:55,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:25:55,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:55,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:56,702 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:56,702 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:25:56,703 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:56,703 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 917 [2020-10-28 17:25:56,703 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:56,703 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:25:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:56,703 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:25:56,704 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:56,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:56,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:57,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:57,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:25:57,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:57,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 617 [2020-10-28 17:25:57,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:57,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:25:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:57,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:25:57,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:57,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:57,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:57,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:57,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:25:57,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:57,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 372 [2020-10-28 17:25:57,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:57,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:25:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:57,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:25:57,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:57,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:57,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:58,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:58,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:25:58,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:58,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 373 [2020-10-28 17:25:58,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:58,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:25:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:58,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:25:58,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:58,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:58,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:58,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:58,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:25:58,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:58,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-28 17:25:58,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:58,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:58,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:25:58,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:58,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:25:58,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:58,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:58,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:58,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:58,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:58,767 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:25:58,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:58,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 175 [2020-10-28 17:25:58,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:58,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:25:58,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:58,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:25:58,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:58,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:58,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:58,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:58,964 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:58,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:25:58,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:58,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-28 17:25:58,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:58,965 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:25:58,965 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:58,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:25:58,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:59,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:59,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:59,044 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:59,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:59,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:25:59,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:59,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-10-28 17:25:59,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:59,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:59,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:25:59,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:59,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:25:59,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:59,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:59,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:59,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:59,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:59,295 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:25:59,295 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:59,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-28 17:25:59,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:59,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:59,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:25:59,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:59,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:25:59,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:25:59,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:59,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:59,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:59,421 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:25:59,421 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:59,421 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 17:25:59,421 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:59,421 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:59,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:25:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:59,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:25:59,422 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:59,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:59,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:59,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:59,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:59,529 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:25:59,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:59,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:25:59,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:59,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:25:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:59,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:25:59,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:59,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:59,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:59,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:59,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:25:59,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:59,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 17:25:59,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:59,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:25:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:59,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:25:59,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:59,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:25:59,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:25:59,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:25:59,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:25:59,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:25:59,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:25:59,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:25:59,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:25:59,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:25:59,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:25:59,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:25:59,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:25:59,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:25:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-28 17:25:59,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791744657] [2020-10-28 17:25:59,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:25:59,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-28 17:25:59,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665331934] [2020-10-28 17:25:59,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-28 17:25:59,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:25:59,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-28 17:25:59,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2020-10-28 17:25:59,834 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 30 states. [2020-10-28 17:26:02,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:02,555 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-28 17:26:02,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-28 17:26:02,556 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 87 [2020-10-28 17:26:02,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:02,558 INFO L225 Difference]: With dead ends: 61 [2020-10-28 17:26:02,558 INFO L226 Difference]: Without dead ends: 56 [2020-10-28 17:26:02,560 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 351 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=165, Invalid=3027, Unknown=0, NotChecked=0, Total=3192 [2020-10-28 17:26:02,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-28 17:26:02,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-28 17:26:02,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-28 17:26:02,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-10-28 17:26:02,568 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 87 [2020-10-28 17:26:02,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:02,569 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-10-28 17:26:02,569 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-28 17:26:02,569 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-10-28 17:26:02,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-28 17:26:02,570 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:02,570 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:02,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 17:26:02,571 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:02,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:02,571 INFO L82 PathProgramCache]: Analyzing trace with hash -913821041, now seen corresponding path program 13 times [2020-10-28 17:26:02,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:02,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228439707] [2020-10-28 17:26:02,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:02,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:26:03,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-10-28 17:26:03,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-28 17:26:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-28 17:26:03,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-28 17:26:03,641 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:03,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:03,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:03,717 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:03,717 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:03,717 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:03,717 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:03,717 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:03,718 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:03,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:03,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:03,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:03,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:03,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:03,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:03,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:04,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:04,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:04,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:04,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-10-28 17:26:04,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:04,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:04,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:04,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:04,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:26:04,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:04,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:04,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:05,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:05,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:05,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:05,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1143 [2020-10-28 17:26:05,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:05,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:05,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:26:05,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:05,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:05,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:06,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:06,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:06,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:06,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 527 [2020-10-28 17:26:06,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:06,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:06,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:06,374 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:26:06,374 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:26:06,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:06,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:06,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:06,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:06,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 422 [2020-10-28 17:26:06,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:06,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:06,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:26:06,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:06,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:06,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:07,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:07,339 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:07,339 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:07,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-28 17:26:07,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:07,340 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:07,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:07,340 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:07,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:26:07,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:07,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:07,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:07,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:07,673 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:07,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:07,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:07,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-28 17:26:07,674 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:07,674 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:07,674 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:07,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:07,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:26:07,675 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:07,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:07,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:07,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:07,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:07,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:07,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 147 [2020-10-28 17:26:07,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:07,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:07,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:07,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:07,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:26:07,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:07,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:07,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:07,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:08,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 17:26:08,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:08,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:08,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:08,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:08,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-28 17:26:08,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:08,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:26:08,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:08,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:08,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 17:26:08,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:26:08,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:08,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:08,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:08,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 17:26:08,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,500 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:26:08,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:08,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:08,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:08,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:26:08,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,613 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,613 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:26:08,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:08,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:08,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:26:08,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:08,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:26:08,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:08,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:08,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:08,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:08,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:08,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:08,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:08,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:08,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:08,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:08,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:26:08,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:08,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:26:08,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-10-28 17:26:08,923 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228439707] [2020-10-28 17:26:08,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:08,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-28 17:26:08,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253381103] [2020-10-28 17:26:08,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-28 17:26:08,924 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:08,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-28 17:26:08,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=931, Unknown=0, NotChecked=0, Total=992 [2020-10-28 17:26:08,925 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 32 states. [2020-10-28 17:26:11,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:11,913 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-28 17:26:11,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-28 17:26:11,913 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 93 [2020-10-28 17:26:11,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:11,915 INFO L225 Difference]: With dead ends: 64 [2020-10-28 17:26:11,915 INFO L226 Difference]: Without dead ends: 59 [2020-10-28 17:26:11,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=177, Invalid=3483, Unknown=0, NotChecked=0, Total=3660 [2020-10-28 17:26:11,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-28 17:26:11,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-28 17:26:11,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-28 17:26:11,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-28 17:26:11,925 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 93 [2020-10-28 17:26:11,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:11,925 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-28 17:26:11,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-28 17:26:11,926 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-28 17:26:11,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-28 17:26:11,927 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:11,927 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:11,927 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 17:26:11,927 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:11,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:11,928 INFO L82 PathProgramCache]: Analyzing trace with hash 1648421445, now seen corresponding path program 14 times [2020-10-28 17:26:11,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:11,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300489596] [2020-10-28 17:26:11,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:11,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:13,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:13,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:26:13,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1108 [2020-10-28 17:26:13,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:13,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:13,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-28 17:26:13,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-28 17:26:13,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 17:26:13,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:13,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:13,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:13,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:13,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:13,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:13,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:13,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:26:13,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:13,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:13,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:13,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:13,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:13,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:13,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:14,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:14,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:14,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:14,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1406 [2020-10-28 17:26:14,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:14,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:14,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:26:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:14,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:14,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:14,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:15,340 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:15,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:15,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:15,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 708 [2020-10-28 17:26:15,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:15,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:15,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:26:15,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:15,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:15,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:15,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:15,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:15,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:15,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 588 [2020-10-28 17:26:15,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:15,980 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:15,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:26:15,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:16,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:16,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:16,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:16,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:16,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:16,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:16,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 668 [2020-10-28 17:26:16,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:16,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:16,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:26:16,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:16,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:16,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:16,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:17,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:17,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:17,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:17,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 347 [2020-10-28 17:26:17,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:17,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:17,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:17,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:17,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:26:17,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:17,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:17,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:17,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:17,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:17,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:17,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-28 17:26:17,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:17,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:17,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:26:17,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:17,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:17,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:17,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:17,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:17,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:17,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:17,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 210 [2020-10-28 17:26:17,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:17,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:17,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:17,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:17,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:26:17,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:17,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:17,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:17,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:17,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:17,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:17,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:17,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-28 17:26:17,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:17,973 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:17,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:26:17,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:18,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:18,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:18,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:18,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:18,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:18,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:18,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-10-28 17:26:18,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:18,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:18,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:18,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:18,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:18,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:18,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:18,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:18,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:18,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:18,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:18,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:18,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 129 [2020-10-28 17:26:18,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:18,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:18,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:18,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:26:18,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:18,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:18,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:18,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:18,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:18,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:18,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:18,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 17:26:18,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:18,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:18,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:26:18,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:18,638 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:18,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:18,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:18,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:18,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:18,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:18,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 17:26:18,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:18,685 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:18,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:26:18,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:18,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:18,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:18,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:18,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:18,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:18,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 17:26:18,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:18,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:18,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:18,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:26:18,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:18,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:18,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:18,917 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:18,917 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:18,917 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:18,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:26:18,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:18,918 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:18,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:26:18,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:19,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:19,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:19,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:19,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:19,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:19,034 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:26:19,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:19,035 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:19,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:26:19,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:19,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:26:19,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-10-28 17:26:19,140 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300489596] [2020-10-28 17:26:19,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:19,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-28 17:26:19,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006394989] [2020-10-28 17:26:19,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-28 17:26:19,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:19,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-28 17:26:19,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2020-10-28 17:26:19,142 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 34 states. [2020-10-28 17:26:22,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:22,501 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-28 17:26:22,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-28 17:26:22,502 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 99 [2020-10-28 17:26:22,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:22,504 INFO L225 Difference]: With dead ends: 67 [2020-10-28 17:26:22,504 INFO L226 Difference]: Without dead ends: 62 [2020-10-28 17:26:22,506 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=189, Invalid=3971, Unknown=0, NotChecked=0, Total=4160 [2020-10-28 17:26:22,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-28 17:26:22,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-10-28 17:26:22,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-28 17:26:22,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-10-28 17:26:22,513 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 99 [2020-10-28 17:26:22,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:22,514 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-10-28 17:26:22,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-28 17:26:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-10-28 17:26:22,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-28 17:26:22,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:22,515 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:22,515 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 17:26:22,515 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:22,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:22,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1745019279, now seen corresponding path program 15 times [2020-10-28 17:26:22,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:22,519 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844726190] [2020-10-28 17:26:22,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:22,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1368 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-28 17:26:23,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:23,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:23,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:23,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:23,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:23,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:23,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:23,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:26:23,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:23,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:23,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:23,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:23,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:24,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:24,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:25,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:25,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:26:25,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:25,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1075 [2020-10-28 17:26:25,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:25,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:25,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:26:25,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:25,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:26:25,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:25,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:25,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:25,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:26,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:26,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:26,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:26,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 880 [2020-10-28 17:26:26,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:26,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:26,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:26,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:26,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:26:26,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:26,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:26,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:26,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:26,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:26,794 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:26,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:26,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-10-28 17:26:26,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:26,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:26,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:26,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:26:26,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:26,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:26,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:26,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:27,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:27,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:27,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:27,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-10-28 17:26:27,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:27,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:27,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:27,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:27,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:26:27,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:27,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:27,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:27,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:27,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:27,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:27,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:27,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-28 17:26:27,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:27,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:26:27,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:27,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:27,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:28,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:28,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:28,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:28,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:28,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 363 [2020-10-28 17:26:28,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:28,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:28,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:28,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:28,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:26:28,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:28,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:28,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:28,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:28,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:28,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:28,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-28 17:26:28,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:28,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:28,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:26:28,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:28,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:28,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:28,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:29,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:29,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:29,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:29,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 221 [2020-10-28 17:26:29,020 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:29,020 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:29,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:29,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:29,020 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:26:29,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:29,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:29,111 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:29,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:29,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:29,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:29,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-28 17:26:29,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:29,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:29,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:29,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:26:29,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:29,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:29,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:29,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:29,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:29,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:29,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:29,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-28 17:26:29,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:29,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:29,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:29,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:29,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:29,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:29,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:29,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:29,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:29,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:29,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-28 17:26:29,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:29,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:29,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:29,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:29,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:26:29,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:29,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:29,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:29,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:29,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:29,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:29,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:29,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 17:26:29,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:29,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:29,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:29,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:29,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:26:29,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:29,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:29,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:29,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:29,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:29,898 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:29,898 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:29,898 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 17:26:29,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:29,898 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:29,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:29,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:29,899 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:26:29,899 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:30,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:30,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:30,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:30,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:30,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:30,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:30,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:26:30,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:30,023 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:30,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:30,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:30,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:26:30,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:30,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:30,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:30,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:30,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:30,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:30,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:30,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:26:30,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:30,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:30,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:26:30,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:30,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:30,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:30,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:30,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:30,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:30,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:30,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:30,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:30,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:26:30,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:30,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:26:30,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:30,375 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-10-28 17:26:30,375 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844726190] [2020-10-28 17:26:30,375 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:30,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-28 17:26:30,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968911096] [2020-10-28 17:26:30,376 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-28 17:26:30,376 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:30,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-28 17:26:30,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2020-10-28 17:26:30,378 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 36 states. [2020-10-28 17:26:34,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:34,188 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-28 17:26:34,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-28 17:26:34,189 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 105 [2020-10-28 17:26:34,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:34,191 INFO L225 Difference]: With dead ends: 70 [2020-10-28 17:26:34,191 INFO L226 Difference]: Without dead ends: 65 [2020-10-28 17:26:34,193 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=201, Invalid=4491, Unknown=0, NotChecked=0, Total=4692 [2020-10-28 17:26:34,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-28 17:26:34,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-28 17:26:34,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-28 17:26:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-10-28 17:26:34,201 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 105 [2020-10-28 17:26:34,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:34,201 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-10-28 17:26:34,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-28 17:26:34,202 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-10-28 17:26:34,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-28 17:26:34,203 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:34,203 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:34,203 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 17:26:34,203 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:34,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:34,204 INFO L82 PathProgramCache]: Analyzing trace with hash -345411387, now seen corresponding path program 16 times [2020-10-28 17:26:34,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:34,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496357977] [2020-10-28 17:26:34,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:34,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:34,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:35,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:35,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:26:35,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:35,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1542 [2020-10-28 17:26:35,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:35,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:35,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-28 17:26:35,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-28 17:26:35,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:35,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:35,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:35,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:35,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:35,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:35,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:35,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:35,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:35,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:35,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:35,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:35,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:35,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:35,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:35,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:35,879 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:37,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:37,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:26:37,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:37,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1264 [2020-10-28 17:26:37,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:37,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:37,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:26:37,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:37,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:26:37,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:37,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:37,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:37,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:38,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:38,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:26:38,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:38,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1054 [2020-10-28 17:26:38,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:38,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:26:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:38,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:26:38,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:38,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:38,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:39,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:39,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:39,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:39,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 909 [2020-10-28 17:26:39,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:39,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:39,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:39,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:39,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:26:39,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:39,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:39,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:40,038 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:40,038 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:40,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:40,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 760 [2020-10-28 17:26:40,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:40,039 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:40,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:40,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:26:40,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:40,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:40,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:40,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:40,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:40,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:40,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:40,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 578 [2020-10-28 17:26:40,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:40,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:40,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:26:40,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:40,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:40,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:41,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:41,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:41,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:41,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 480 [2020-10-28 17:26:41,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:41,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:41,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:26:41,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:41,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:41,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:41,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:41,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:41,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:41,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 377 [2020-10-28 17:26:41,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:41,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:41,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:26:41,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:41,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:41,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:41,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:42,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:42,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:42,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:42,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 273 [2020-10-28 17:26:42,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:42,040 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:42,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:42,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:26:42,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:42,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:42,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:42,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:42,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:42,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:42,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 208 [2020-10-28 17:26:42,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:42,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:42,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:26:42,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:42,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:42,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:42,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:42,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:42,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:42,570 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:42,570 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-28 17:26:42,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:42,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:42,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:26:42,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:42,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:42,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:42,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:42,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:42,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:42,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 17:26:42,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:42,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:42,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:42,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:42,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:42,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:42,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:42,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:42,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:42,944 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:42,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:42,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:42,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-28 17:26:42,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:42,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:42,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:42,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:42,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:26:42,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:43,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:43,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:43,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:43,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 17:26:43,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:43,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:43,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:26:43,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:43,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:43,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:43,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:43,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 17:26:43,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:43,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:43,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:26:43,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:43,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:43,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:43,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:26:43,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:43,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:43,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:26:43,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:43,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:43,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:43,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:26:43,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:26:43,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:43,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:43,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:43,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:43,636 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:43,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:43,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:43,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:43,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:43,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:26:43,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:43,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:26:43,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:43,757 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-10-28 17:26:43,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496357977] [2020-10-28 17:26:43,757 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:43,757 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-28 17:26:43,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410532308] [2020-10-28 17:26:43,758 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-28 17:26:43,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:43,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-28 17:26:43,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2020-10-28 17:26:43,759 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 38 states. [2020-10-28 17:26:47,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:26:47,923 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-28 17:26:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-28 17:26:47,924 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 111 [2020-10-28 17:26:47,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:26:47,926 INFO L225 Difference]: With dead ends: 73 [2020-10-28 17:26:47,926 INFO L226 Difference]: Without dead ends: 68 [2020-10-28 17:26:47,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=213, Invalid=5043, Unknown=0, NotChecked=0, Total=5256 [2020-10-28 17:26:47,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-28 17:26:47,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-28 17:26:47,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-28 17:26:47,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-10-28 17:26:47,935 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 111 [2020-10-28 17:26:47,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:26:47,936 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-10-28 17:26:47,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-28 17:26:47,936 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-10-28 17:26:47,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-28 17:26:47,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:26:47,937 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:26:47,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 17:26:47,938 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:26:47,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:26:47,938 INFO L82 PathProgramCache]: Analyzing trace with hash 1831747727, now seen corresponding path program 17 times [2020-10-28 17:26:47,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:26:47,941 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1063895017] [2020-10-28 17:26:47,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:26:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:47,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:50,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:50,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:26:50,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:50,041 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2070 [2020-10-28 17:26:50,041 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:50,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-28 17:26:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-28 17:26:50,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-28 17:26:50,042 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:50,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:26:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:50,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:50,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:50,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:26:50,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:50,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:50,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:50,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:50,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:26:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:50,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:26:50,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 17:26:50,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:26:50,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:50,157 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:51,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:51,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:26:51,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:51,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1519 [2020-10-28 17:26:51,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:51,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:26:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:51,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:26:51,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:51,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:51,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:53,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:53,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:26:53,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:53,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1290 [2020-10-28 17:26:53,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:53,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:53,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:26:53,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:53,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:26:53,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:53,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:53,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:54,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:54,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:26:54,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:54,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1067 [2020-10-28 17:26:54,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:54,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:26:54,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:54,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:26:54,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:54,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:54,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:55,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:55,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:26:55,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:55,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 864 [2020-10-28 17:26:55,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:55,065 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:55,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:26:55,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:55,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:26:55,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:55,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:55,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:55,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:55,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:26:55,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:55,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 795 [2020-10-28 17:26:55,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:55,934 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:26:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:55,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:26:55,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:55,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:56,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:56,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:56,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:56,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:26:56,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:56,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 548 [2020-10-28 17:26:56,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:56,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:56,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:26:56,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:56,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:26:56,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:56,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:56,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:56,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:57,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:57,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:26:57,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:57,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-28 17:26:57,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:57,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:26:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:26:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:57,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:57,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:57,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:57,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:26:57,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:57,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 386 [2020-10-28 17:26:57,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:57,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:26:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:57,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:26:57,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:57,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:57,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:57,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:57,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:57,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:26:57,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:57,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 260 [2020-10-28 17:26:57,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:57,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:57,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:26:57,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:57,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:26:57,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:57,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:57,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:57,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:58,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:58,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:26:58,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:58,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 212 [2020-10-28 17:26:58,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:58,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:58,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:26:58,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:58,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:26:58,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:58,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:58,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:58,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:58,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:26:58,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:58,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 230 [2020-10-28 17:26:58,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:58,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:26:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:58,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:26:58,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:58,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:58,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:58,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:58,746 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:58,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:26:58,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:58,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-28 17:26:58,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:58,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:58,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:26:58,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:58,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:26:58,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:58,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:58,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:58,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:58,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:26:58,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:58,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 17:26:58,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:58,920 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:26:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:58,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:26:58,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:59,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:59,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:59,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:59,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:26:59,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:59,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 17:26:59,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:59,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:26:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:59,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:26:59,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:59,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:59,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:59,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:59,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:26:59,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:59,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-28 17:26:59,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:59,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:26:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:59,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:26:59,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:59,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:59,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:59,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:59,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:26:59,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:59,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:26:59,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:59,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:59,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:26:59,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:59,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:26:59,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:26:59,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:59,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:59,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:59,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:26:59,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:59,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 17:26:59,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:59,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:26:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:26:59,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:59,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:26:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:26:59,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:26:59,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:26:59,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:26:59,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:26:59,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:26:59,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:26:59,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:26:59,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:26:59,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:26:59,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:26:59,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:26:59,783 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-28 17:26:59,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1063895017] [2020-10-28 17:26:59,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:26:59,783 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-28 17:26:59,783 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376767068] [2020-10-28 17:26:59,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-28 17:26:59,784 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:26:59,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-28 17:26:59,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2020-10-28 17:26:59,785 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 40 states. [2020-10-28 17:27:04,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:27:04,335 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-28 17:27:04,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-28 17:27:04,336 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 117 [2020-10-28 17:27:04,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:27:04,338 INFO L225 Difference]: With dead ends: 76 [2020-10-28 17:27:04,338 INFO L226 Difference]: Without dead ends: 71 [2020-10-28 17:27:04,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=225, Invalid=5627, Unknown=0, NotChecked=0, Total=5852 [2020-10-28 17:27:04,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-28 17:27:04,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-28 17:27:04,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-28 17:27:04,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-10-28 17:27:04,347 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 117 [2020-10-28 17:27:04,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:27:04,348 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-10-28 17:27:04,348 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-28 17:27:04,348 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-10-28 17:27:04,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-28 17:27:04,349 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:27:04,349 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:27:04,349 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 17:27:04,349 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:27:04,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:27:04,350 INFO L82 PathProgramCache]: Analyzing trace with hash 1286539077, now seen corresponding path program 18 times [2020-10-28 17:27:04,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:27:04,350 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470613478] [2020-10-28 17:27:04,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:27:04,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:04,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:06,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:06,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-28 17:27:06,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:06,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2074 [2020-10-28 17:27:06,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:06,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-28 17:27:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-28 17:27:06,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-28 17:27:06,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:06,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:27:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:06,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:06,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:06,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:27:06,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:06,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:27:06,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:06,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:06,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:27:06,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:06,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:27:06,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:06,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:27:06,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:06,594 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:08,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:08,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:27:08,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:08,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1785 [2020-10-28 17:27:08,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:08,366 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:27:08,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:08,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 17:27:08,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:08,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:08,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:08,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:09,939 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:09,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:27:09,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:09,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1508 [2020-10-28 17:27:09,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:09,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:09,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:27:09,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:09,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:27:09,940 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:09,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:09,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:10,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:11,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:11,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:27:11,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:11,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1257 [2020-10-28 17:27:11,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:11,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:11,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:27:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:11,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:27:11,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:11,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:11,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:11,330 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:12,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:12,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:27:12,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:12,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1076 [2020-10-28 17:27:12,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:12,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:12,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:27:12,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:12,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:27:12,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:12,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:12,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:12,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:13,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:13,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:27:13,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:13,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 979 [2020-10-28 17:27:13,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:13,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:27:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:13,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:27:13,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:13,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:13,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:14,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:14,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:27:14,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:14,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 864 [2020-10-28 17:27:14,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:14,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:14,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:27:14,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:14,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:27:14,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:14,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:14,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:14,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:15,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:15,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:27:15,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:15,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 652 [2020-10-28 17:27:15,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:15,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:27:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:27:15,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:15,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:15,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:15,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:15,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:27:15,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:15,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-10-28 17:27:15,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:15,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:15,664 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:27:15,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:15,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:27:15,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 17:27:15,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:15,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:16,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:16,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:27:16,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:16,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 343 [2020-10-28 17:27:16,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:16,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:16,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:27:16,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:16,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:27:16,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:16,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:16,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:16,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:16,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:16,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:27:16,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:16,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 277 [2020-10-28 17:27:16,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:16,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:27:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:16,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:27:16,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:16,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:16,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:16,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:16,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:16,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:27:16,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:16,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-28 17:27:16,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:16,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:16,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:27:16,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:16,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:27:16,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:16,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:16,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:16,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:17,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:17,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:27:17,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:17,011 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-10-28 17:27:17,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:17,011 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:17,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:27:17,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:17,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:27:17,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:17,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:17,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:17,113 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:17,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:17,209 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:27:17,209 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:17,209 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-28 17:27:17,209 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:17,209 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:17,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:27:17,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:17,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:27:17,210 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:17,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:17,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:17,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:17,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:17,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:27:17,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:17,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 17:27:17,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:17,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:27:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:17,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:27:17,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:17,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:17,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:17,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:17,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:17,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:27:17,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:17,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-28 17:27:17,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:17,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:17,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:27:17,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:17,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:27:17,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:17,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:17,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:17,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:17,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:27:17,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:17,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-28 17:27:17,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:17,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:27:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:17,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:27:17,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:17,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:17,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:17,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:17,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:27:17,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:17,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 17:27:17,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:17,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:17,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:27:17,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:17,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:27:17,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:18,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:18,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:18,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:18,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:18,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:27:18,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:18,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:27:18,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:18,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:18,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:27:18,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:18,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:27:18,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:18,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:18,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:18,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:18,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:27:18,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:18,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:27:18,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:18,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:18,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:27:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:18,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:27:18,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:18,337 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-10-28 17:27:18,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470613478] [2020-10-28 17:27:18,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:27:18,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-28 17:27:18,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251170253] [2020-10-28 17:27:18,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-28 17:27:18,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:27:18,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-28 17:27:18,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1641, Unknown=0, NotChecked=0, Total=1722 [2020-10-28 17:27:18,339 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 42 states. [2020-10-28 17:27:23,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:27:23,302 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-28 17:27:23,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-28 17:27:23,303 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 123 [2020-10-28 17:27:23,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:27:23,305 INFO L225 Difference]: With dead ends: 79 [2020-10-28 17:27:23,305 INFO L226 Difference]: Without dead ends: 74 [2020-10-28 17:27:23,308 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=237, Invalid=6243, Unknown=0, NotChecked=0, Total=6480 [2020-10-28 17:27:23,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-28 17:27:23,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-28 17:27:23,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-28 17:27:23,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-10-28 17:27:23,314 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 123 [2020-10-28 17:27:23,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:27:23,314 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-10-28 17:27:23,315 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-28 17:27:23,315 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-10-28 17:27:23,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-28 17:27:23,316 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:27:23,316 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:27:23,316 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 17:27:23,316 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:27:23,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:27:23,316 INFO L82 PathProgramCache]: Analyzing trace with hash 626937743, now seen corresponding path program 19 times [2020-10-28 17:27:23,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:27:23,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254141815] [2020-10-28 17:27:23,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:27:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:23,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:25,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:25,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 17:27:25,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:25,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2493 [2020-10-28 17:27:25,838 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:25,838 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:25,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-28 17:27:25,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-28 17:27:25,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-28 17:27:25,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:25,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:27:25,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:25,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:25,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:25,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:27:25,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:25,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:27:25,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:25,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:25,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:27:25,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:25,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:27:25,919 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:25,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:27:25,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:25,957 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:28,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:28,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:27:28,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:28,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2105 [2020-10-28 17:27:28,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:28,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:28,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-28 17:27:28,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:28,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-28 17:27:28,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:28,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:28,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:28,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:29,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:29,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:27:29,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:29,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1833 [2020-10-28 17:27:29,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:29,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:29,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:27:29,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:29,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 17:27:29,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:29,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:30,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:31,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:31,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:27:31,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:31,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1554 [2020-10-28 17:27:31,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:31,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:31,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:27:31,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:31,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:27:31,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:31,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:31,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:32,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:32,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:27:32,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:32,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1277 [2020-10-28 17:27:32,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:32,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:27:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:32,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:27:32,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:32,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:32,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:32,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:34,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:34,017 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:27:34,017 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:34,017 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1028 [2020-10-28 17:27:34,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:34,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:27:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:34,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:27:34,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:34,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:34,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:34,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:34,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:27:34,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:34,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 862 [2020-10-28 17:27:34,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:34,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:34,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:27:34,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:34,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:27:34,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:35,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:35,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:35,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:35,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:35,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:27:35,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-10-28 17:27:35,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:35,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:27:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:35,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:27:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:35,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:35,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:36,387 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:36,387 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:27:36,387 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:36,387 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 569 [2020-10-28 17:27:36,387 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:36,388 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:36,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:27:36,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:36,388 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:27:36,388 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:36,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:36,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:36,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:36,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:36,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:27:36,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:36,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 463 [2020-10-28 17:27:36,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:36,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:27:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:36,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:27:36,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:37,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:37,050 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:37,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:37,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:27:37,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:37,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-28 17:27:37,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:37,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:27:37,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:37,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:27:37,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:37,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:37,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:37,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:37,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:37,773 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:27:37,773 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:37,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-28 17:27:37,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:37,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:37,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:27:37,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:37,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:27:37,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:37,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:37,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:38,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:38,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:27:38,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:38,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-28 17:27:38,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:38,077 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:27:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:38,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:27:38,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:38,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:38,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:38,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:38,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:38,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:27:38,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:38,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-28 17:27:38,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:38,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:38,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:27:38,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:38,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:27:38,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:38,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:38,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:38,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:38,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:38,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:27:38,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:38,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 17:27:38,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:38,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:38,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:27:38,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:38,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:27:38,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:38,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:38,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:38,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:38,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:27:38,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:38,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-28 17:27:38,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:38,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:38,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:27:38,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:38,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:27:38,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:38,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:38,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:38,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:38,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:27:38,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:38,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 17:27:38,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:38,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:38,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:27:38,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:38,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:27:38,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:39,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:39,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:39,055 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:39,055 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:27:39,055 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:39,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 17:27:39,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:39,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:39,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:27:39,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:39,056 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:27:39,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:39,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:39,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:39,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:39,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:27:39,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:39,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 17:27:39,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:39,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:39,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:27:39,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:39,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:27:39,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:39,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:39,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:39,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:39,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:39,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:27:39,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:39,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:27:39,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:39,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:39,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:27:39,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:39,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:27:39,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:39,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:39,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:39,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:39,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:27:39,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:39,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:27:39,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:39,505 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:27:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:39,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:27:39,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:27:39,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-10-28 17:27:39,667 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254141815] [2020-10-28 17:27:39,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:27:39,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-28 17:27:39,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415912716] [2020-10-28 17:27:39,668 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-28 17:27:39,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:27:39,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-28 17:27:39,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1807, Unknown=0, NotChecked=0, Total=1892 [2020-10-28 17:27:39,669 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 44 states. [2020-10-28 17:27:45,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:27:45,114 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-10-28 17:27:45,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-28 17:27:45,115 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 129 [2020-10-28 17:27:45,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:27:45,117 INFO L225 Difference]: With dead ends: 82 [2020-10-28 17:27:45,117 INFO L226 Difference]: Without dead ends: 77 [2020-10-28 17:27:45,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=249, Invalid=6891, Unknown=0, NotChecked=0, Total=7140 [2020-10-28 17:27:45,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-28 17:27:45,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-28 17:27:45,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-28 17:27:45,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2020-10-28 17:27:45,125 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 129 [2020-10-28 17:27:45,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:27:45,126 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2020-10-28 17:27:45,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-28 17:27:45,126 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2020-10-28 17:27:45,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-28 17:27:45,127 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:27:45,127 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:27:45,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 17:27:45,127 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:27:45,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:27:45,128 INFO L82 PathProgramCache]: Analyzing trace with hash 1436396997, now seen corresponding path program 20 times [2020-10-28 17:27:45,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:27:45,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1649074144] [2020-10-28 17:27:45,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:27:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:45,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:47,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:47,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-28 17:27:47,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:47,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2798 [2020-10-28 17:27:47,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:47,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:47,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-28 17:27:47,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-28 17:27:47,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-28 17:27:47,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:48,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:27:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:48,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:48,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:48,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:27:48,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:48,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:27:48,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:48,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:27:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:48,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:27:48,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:48,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:27:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:48,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:50,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:50,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-28 17:27:50,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:50,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2472 [2020-10-28 17:27:50,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:50,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-28 17:27:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:50,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-28 17:27:50,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:50,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:50,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:50,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:52,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:52,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:27:52,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:52,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2122 [2020-10-28 17:27:52,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:52,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-28 17:27:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:52,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-28 17:27:52,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:52,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:52,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:52,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:54,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:54,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:27:54,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:54,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1760 [2020-10-28 17:27:54,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:54,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:54,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:27:54,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:54,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 17:27:54,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:54,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:54,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:56,174 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:56,174 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:27:56,174 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:56,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1507 [2020-10-28 17:27:56,175 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:56,175 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:56,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:27:56,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:56,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:27:56,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:56,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:56,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:57,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:57,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:27:57,529 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:57,529 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1279 [2020-10-28 17:27:57,529 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:57,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:57,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:27:57,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:57,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:27:57,530 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:57,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:57,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:57,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:58,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:58,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:27:58,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:58,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1046 [2020-10-28 17:27:58,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:58,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:27:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:58,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:27:58,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:58,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:58,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:58,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:27:59,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:27:59,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:27:59,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:27:59,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 853 [2020-10-28 17:27:59,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:27:59,588 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:27:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:27:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:27:59,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:27:59,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:27:59,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:27:59,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:27:59,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:00,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:00,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:28:00,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:00,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 862 [2020-10-28 17:28:00,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:00,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:00,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:28:00,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:00,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:28:00,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:00,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:00,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:00,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:01,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:01,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:28:01,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:01,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 583 [2020-10-28 17:28:01,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:01,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:28:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:01,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:28:01,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:01,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:01,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:01,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:01,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:01,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:28:01,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:01,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 453 [2020-10-28 17:28:01,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:01,785 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:28:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:01,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:28:01,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:01,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:01,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:02,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:02,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:28:02,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:02,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-28 17:28:02,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:02,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:28:02,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:02,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:28:02,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:02,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:02,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:02,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:02,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:02,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:28:02,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:02,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-28 17:28:02,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:02,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:28:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:02,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:28:02,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:02,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:02,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:02,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:02,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:02,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:28:02,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:02,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-28 17:28:02,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:02,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:02,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:28:02,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:02,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:28:02,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:03,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:03,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:03,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:03,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:28:03,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:03,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 159 [2020-10-28 17:28:03,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:03,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:28:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:03,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:28:03,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:03,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:03,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:03,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:03,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:28:03,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:03,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-28 17:28:03,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:03,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:03,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:28:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:03,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:28:03,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:03,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:03,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:03,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:03,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:03,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:28:03,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:03,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-28 17:28:03,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:03,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:28:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:03,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:28:03,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:03,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:03,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:03,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:03,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:03,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:28:03,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:03,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-28 17:28:03,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:03,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:03,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:28:03,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:03,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:28:03,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:03,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:03,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:04,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:04,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:28:04,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:04,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 17:28:04,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:04,008 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:28:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:04,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:28:04,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:04,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:04,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:04,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:04,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:28:04,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:04,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 17:28:04,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:04,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:04,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:28:04,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:04,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:28:04,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:04,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:04,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:04,327 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:04,327 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:28:04,328 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:04,328 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:28:04,328 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:04,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:04,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:28:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:04,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:28:04,329 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:04,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:04,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:04,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:04,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:04,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:28:04,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:04,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:28:04,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:04,488 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:28:04,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:04,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:28:04,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:04,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-10-28 17:28:04,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1649074144] [2020-10-28 17:28:04,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:28:04,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-28 17:28:04,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662247550] [2020-10-28 17:28:04,689 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-28 17:28:04,689 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:28:04,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-28 17:28:04,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1981, Unknown=0, NotChecked=0, Total=2070 [2020-10-28 17:28:04,690 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 46 states. [2020-10-28 17:28:10,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:28:10,599 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2020-10-28 17:28:10,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-28 17:28:10,600 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 135 [2020-10-28 17:28:10,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:28:10,602 INFO L225 Difference]: With dead ends: 85 [2020-10-28 17:28:10,602 INFO L226 Difference]: Without dead ends: 80 [2020-10-28 17:28:10,607 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 903 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=261, Invalid=7571, Unknown=0, NotChecked=0, Total=7832 [2020-10-28 17:28:10,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-28 17:28:10,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-28 17:28:10,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-28 17:28:10,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-10-28 17:28:10,613 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 135 [2020-10-28 17:28:10,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:28:10,613 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-10-28 17:28:10,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-28 17:28:10,614 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-10-28 17:28:10,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-28 17:28:10,615 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:28:10,615 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:28:10,615 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 17:28:10,615 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:28:10,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:28:10,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1444475249, now seen corresponding path program 21 times [2020-10-28 17:28:10,616 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:28:10,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [944141007] [2020-10-28 17:28:10,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:28:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:10,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:13,904 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:13,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-28 17:28:13,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:13,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3250 [2020-10-28 17:28:13,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:13,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:13,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-28 17:28:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-10-28 17:28:13,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-28 17:28:13,905 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:13,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:28:13,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:13,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:13,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:13,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:28:13,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:13,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:28:13,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:13,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:28:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:13,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:28:13,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:13,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:28:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:14,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:16,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:16,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 17:28:16,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:16,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2838 [2020-10-28 17:28:16,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:16,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-28 17:28:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:16,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-28 17:28:16,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:16,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:16,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:19,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:19,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-28 17:28:19,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:19,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2658 [2020-10-28 17:28:19,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:19,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-28 17:28:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:19,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-28 17:28:19,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:19,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:19,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:19,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:21,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:21,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:28:21,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:21,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2095 [2020-10-28 17:28:21,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:21,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-28 17:28:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:21,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-28 17:28:21,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:21,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:21,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:21,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:23,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:23,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:28:23,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:23,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1832 [2020-10-28 17:28:23,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:23,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:28:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:23,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 17:28:23,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:23,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:23,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:25,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:25,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:28:25,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1476 [2020-10-28 17:28:25,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:25,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:28:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:25,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:28:25,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:25,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:25,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:25,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:26,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:26,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:28:26,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:26,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1271 [2020-10-28 17:28:26,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:26,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:26,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:28:26,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:26,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:28:26,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:26,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:26,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:27,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:27,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:28:27,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:27,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1044 [2020-10-28 17:28:27,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:27,677 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:28:27,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:27,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:28:27,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:27,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:27,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:27,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:28,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:28,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:28:28,601 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:28,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 839 [2020-10-28 17:28:28,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:28,602 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:28:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:28,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:28:28,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:28,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:28,700 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:29,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:29,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:28:29,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:29,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 709 [2020-10-28 17:28:29,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:29,403 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:28:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:29,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:28:29,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:29,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:29,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:30,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:30,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:28:30,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:30,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 574 [2020-10-28 17:28:30,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:30,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:30,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:28:30,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:30,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:28:30,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:30,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:30,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:30,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:30,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:28:30,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:30,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 442 [2020-10-28 17:28:30,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:30,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:28:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:30,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:28:30,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:30,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:30,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:30,733 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:31,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:31,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:28:31,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:31,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-28 17:28:31,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:31,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:31,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:28:31,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:31,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:28:31,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:31,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:31,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:31,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:31,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:28:31,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:31,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-28 17:28:31,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:31,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:31,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:28:31,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:31,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:28:31,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:31,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:31,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:31,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:31,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:31,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:28:31,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:31,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-28 17:28:31,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:31,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:31,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:28:31,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:31,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:28:31,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:31,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:31,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:31,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:32,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:32,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:28:32,037 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:32,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 17:28:32,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:32,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:28:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:32,038 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:28:32,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:32,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:32,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:32,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:32,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:28:32,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:32,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-28 17:28:32,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:32,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:32,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:28:32,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:32,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:28:32,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:32,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:32,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:32,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:32,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:32,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:28:32,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:32,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-28 17:28:32,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:32,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:32,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:28:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:32,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:28:32,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:32,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:32,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:32,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:32,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:32,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:28:32,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:32,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 17:28:32,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:32,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:28:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:28:32,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:32,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:32,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:32,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:32,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:32,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:28:32,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:32,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 17:28:32,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:32,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:28:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:32,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:28:32,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:32,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:32,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:33,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:33,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:28:33,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:33,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 17:28:33,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:33,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:33,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:28:33,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:33,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:28:33,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:33,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:33,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:33,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:33,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:33,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:28:33,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:33,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:28:33,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:33,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:33,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:28:33,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:33,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:28:33,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:33,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:33,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:33,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:33,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:33,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:28:33,343 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:33,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:28:33,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:33,343 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:33,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:28:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:33,344 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:28:33,344 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:28:33,538 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2020-10-28 17:28:33,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [944141007] [2020-10-28 17:28:33,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:28:33,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2020-10-28 17:28:33,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175108819] [2020-10-28 17:28:33,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-10-28 17:28:33,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:28:33,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-10-28 17:28:33,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=2163, Unknown=0, NotChecked=0, Total=2256 [2020-10-28 17:28:33,540 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand 48 states. [2020-10-28 17:28:40,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 17:28:40,050 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2020-10-28 17:28:40,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-28 17:28:40,054 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 141 [2020-10-28 17:28:40,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 17:28:40,055 INFO L225 Difference]: With dead ends: 88 [2020-10-28 17:28:40,055 INFO L226 Difference]: Without dead ends: 83 [2020-10-28 17:28:40,056 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=273, Invalid=8283, Unknown=0, NotChecked=0, Total=8556 [2020-10-28 17:28:40,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-28 17:28:40,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-10-28 17:28:40,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-28 17:28:40,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-10-28 17:28:40,062 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 141 [2020-10-28 17:28:40,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 17:28:40,062 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-10-28 17:28:40,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-10-28 17:28:40,062 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-10-28 17:28:40,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-28 17:28:40,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 17:28:40,063 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 17:28:40,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-28 17:28:40,064 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 17:28:40,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 17:28:40,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1489069125, now seen corresponding path program 22 times [2020-10-28 17:28:40,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 17:28:40,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [61242246] [2020-10-28 17:28:40,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 17:28:40,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:40,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:43,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:43,830 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-28 17:28:43,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:43,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3729 [2020-10-28 17:28:43,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:43,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:43,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-28 17:28:43,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-28 17:28:43,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 17:28:43,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:43,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 17:28:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:43,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:43,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:43,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 17:28:43,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:43,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 17:28:43,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:43,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:43,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 17:28:43,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:43,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 17:28:43,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:43,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-28 17:28:43,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:43,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:47,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:47,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-28 17:28:47,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:47,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3312 [2020-10-28 17:28:47,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:47,254 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:47,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-28 17:28:47,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:47,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-28 17:28:47,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:47,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:47,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:50,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:50,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-28 17:28:50,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:50,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2853 [2020-10-28 17:28:50,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:50,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-28 17:28:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:50,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-28 17:28:50,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:50,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:50,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:52,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:52,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-28 17:28:52,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:52,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2432 [2020-10-28 17:28:52,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:52,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-28 17:28:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:52,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-28 17:28:52,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:52,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:52,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:54,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:54,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-28 17:28:54,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:54,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2069 [2020-10-28 17:28:54,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:54,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-28 17:28:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:54,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-28 17:28:54,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:54,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:54,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:56,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:56,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-28 17:28:56,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:56,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1747 [2020-10-28 17:28:56,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:56,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:56,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-28 17:28:56,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:56,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-28 17:28:56,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:56,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:56,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:58,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:58,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-28 17:28:58,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:58,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1489 [2020-10-28 17:28:58,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:58,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-28 17:28:58,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:58,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-28 17:28:58,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:58,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:58,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:58,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:28:59,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:28:59,566 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-28 17:28:59,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:28:59,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1244 [2020-10-28 17:28:59,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:28:59,566 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:28:59,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-28 17:28:59,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:28:59,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 17:28:59,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:28:59,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:28:59,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:28:59,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:00,693 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:00,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-28 17:29:00,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:00,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1038 [2020-10-28 17:29:00,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:00,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:00,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-28 17:29:00,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:00,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-28 17:29:00,694 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:00,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:00,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:01,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:01,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-28 17:29:01,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:01,646 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 857 [2020-10-28 17:29:01,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:01,647 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-28 17:29:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:01,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-28 17:29:01,647 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:01,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:01,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:01,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:02,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:02,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-28 17:29:02,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:02,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 719 [2020-10-28 17:29:02,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:02,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:02,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-28 17:29:02,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:02,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-28 17:29:02,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:02,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:02,579 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:03,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:03,128 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-28 17:29:03,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:03,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 556 [2020-10-28 17:29:03,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:03,129 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-28 17:29:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-28 17:29:03,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:03,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:03,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:03,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:03,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-28 17:29:03,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:03,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 439 [2020-10-28 17:29:03,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:03,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-28 17:29:03,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:03,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-28 17:29:03,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:03,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:03,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:03,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:04,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:04,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-28 17:29:04,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:04,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-28 17:29:04,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:04,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:04,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-28 17:29:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:04,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-28 17:29:04,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:04,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:04,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:04,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:04,493 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-28 17:29:04,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:04,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 257 [2020-10-28 17:29:04,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:04,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-28 17:29:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:04,494 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 17:29:04,494 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:04,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:04,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:04,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:04,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-28 17:29:04,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:04,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 185 [2020-10-28 17:29:04,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:04,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-28 17:29:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 17:29:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:04,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:04,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:04,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:05,058 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:05,058 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-28 17:29:05,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:05,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 135 [2020-10-28 17:29:05,059 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:05,059 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-28 17:29:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:05,059 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-28 17:29:05,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:05,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:05,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:05,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:05,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:05,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-28 17:29:05,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:05,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-28 17:29:05,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:05,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-28 17:29:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:05,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 17:29:05,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:05,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:05,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:05,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:05,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:05,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-28 17:29:05,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:05,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-28 17:29:05,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:05,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-28 17:29:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:05,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 17:29:05,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:05,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:05,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:05,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:05,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-28 17:29:05,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:05,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 17:29:05,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:05,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-28 17:29:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:05,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-28 17:29:05,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:05,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:05,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:05,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:05,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-28 17:29:05,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:05,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 17:29:05,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:05,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:05,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-28 17:29:05,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:05,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-28 17:29:05,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:06,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:06,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:06,070 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:06,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-28 17:29:06,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:06,071 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 17:29:06,071 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:06,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 17:29:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:06,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 17:29:06,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 17:29:06,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:06,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:06,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:06,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:06,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-28 17:29:06,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:06,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 17:29:06,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:06,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:06,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 17:29:06,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:06,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-28 17:29:06,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:29:06,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-28 17:29:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 17:29:06,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 17:29:06,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 17:29:06,423 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 17:29:06,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 17:29:06,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 17:29:06,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 17:29:06,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 17:29:06,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-28 17:29:06,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 17:29:06,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-28 17:29:06,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 17:29:06,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2020-10-28 17:29:06,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [61242246] [2020-10-28 17:29:06,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 17:29:06,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2020-10-28 17:29:06,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46549359] [2020-10-28 17:29:06,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-10-28 17:29:06,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 17:29:06,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-10-28 17:29:06,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=2353, Unknown=0, NotChecked=0, Total=2450 [2020-10-28 17:29:06,646 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 50 states.