/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=DEEPEST --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_o1000.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 22:38:34,231 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 22:38:34,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 22:38:34,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 22:38:34,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 22:38:34,288 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 22:38:34,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 22:38:34,296 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 22:38:34,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 22:38:34,306 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 22:38:34,307 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 22:38:34,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 22:38:34,309 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 22:38:34,313 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 22:38:34,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 22:38:34,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 22:38:34,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 22:38:34,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 22:38:34,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 22:38:34,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 22:38:34,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 22:38:34,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 22:38:34,347 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 22:38:34,350 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 22:38:34,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 22:38:34,359 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 22:38:34,359 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 22:38:34,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 22:38:34,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 22:38:34,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 22:38:34,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 22:38:34,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 22:38:34,367 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 22:38:34,368 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 22:38:34,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 22:38:34,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 22:38:34,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 22:38:34,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 22:38:34,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 22:38:34,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 22:38:34,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 22:38:34,380 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 [2020-10-27 22:38:34,443 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 22:38:34,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 22:38:34,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 22:38:34,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 22:38:34,446 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 22:38:34,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 22:38:34,446 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 22:38:34,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 22:38:34,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 22:38:34,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 22:38:34,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 22:38:34,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 22:38:34,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 22:38:34,448 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 22:38:34,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 22:38:34,448 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 22:38:34,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 22:38:34,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 22:38:34,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 22:38:34,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 22:38:34,449 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 22:38:34,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 22:38:34,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 22:38:34,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 22:38:34,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 22:38:34,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 22:38:34,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 22:38:34,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 22:38:34,451 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 22:38:34,451 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 22:38:34,892 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 22:38:34,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 22:38:34,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 22:38:34,931 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 22:38:34,932 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 22:38:34,934 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_o1000.c [2020-10-27 22:38:35,035 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52b52482a/2b64e74b8694400188f493331205eb8f/FLAG34f2f21cc [2020-10-27 22:38:35,640 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 22:38:35,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/id_o1000.c [2020-10-27 22:38:35,648 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52b52482a/2b64e74b8694400188f493331205eb8f/FLAG34f2f21cc [2020-10-27 22:38:36,004 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/52b52482a/2b64e74b8694400188f493331205eb8f [2020-10-27 22:38:36,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 22:38:36,016 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 22:38:36,018 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 22:38:36,018 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 22:38:36,022 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 22:38:36,023 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:38:36" (1/1) ... [2020-10-27 22:38:36,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6c30d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:38:36, skipping insertion in model container [2020-10-27 22:38:36,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 10:38:36" (1/1) ... [2020-10-27 22:38:36,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 22:38:36,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 22:38:36,214 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:38:36,225 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 22:38:36,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 22:38:36,260 INFO L208 MainTranslator]: Completed translation [2020-10-27 22:38:36,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:38:36 WrapperNode [2020-10-27 22:38:36,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 22:38:36,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 22:38:36,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 22:38:36,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 22:38:36,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:38:36" (1/1) ... [2020-10-27 22:38:36,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:38:36" (1/1) ... [2020-10-27 22:38:36,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:38:36" (1/1) ... [2020-10-27 22:38:36,288 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:38:36" (1/1) ... [2020-10-27 22:38:36,294 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:38:36" (1/1) ... [2020-10-27 22:38:36,296 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:38:36" (1/1) ... [2020-10-27 22:38:36,297 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:38:36" (1/1) ... [2020-10-27 22:38:36,300 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 22:38:36,301 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 22:38:36,301 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 22:38:36,301 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 22:38:36,302 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:38:36" (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 [2020-10-27 22:38:36,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 22:38:36,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 22:38:36,403 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 22:38:36,404 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-27 22:38:36,405 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 22:38:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2020-10-27 22:38:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 22:38:36,405 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 22:38:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 22:38:36,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 22:38:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-27 22:38:36,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 22:38:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 22:38:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 22:38:36,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 22:38:36,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 22:38:36,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 22:38:36,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 22:38:36,696 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 22:38:36,696 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-27 22:38:36,698 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:38:36 BoogieIcfgContainer [2020-10-27 22:38:36,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 22:38:36,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 22:38:36,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 22:38:36,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 22:38:36,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 10:38:36" (1/3) ... [2020-10-27 22:38:36,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da1ab5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:38:36, skipping insertion in model container [2020-10-27 22:38:36,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 10:38:36" (2/3) ... [2020-10-27 22:38:36,706 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da1ab5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 10:38:36, skipping insertion in model container [2020-10-27 22:38:36,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 10:38:36" (3/3) ... [2020-10-27 22:38:36,708 INFO L111 eAbstractionObserver]: Analyzing ICFG id_o1000.c [2020-10-27 22:38:36,722 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 22:38:36,728 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 22:38:36,746 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 22:38:36,777 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 22:38:36,778 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 22:38:36,778 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 22:38:36,778 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 22:38:36,778 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 22:38:36,778 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 22:38:36,779 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 22:38:36,779 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 22:38:36,810 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-10-27 22:38:36,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-27 22:38:36,825 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:38:36,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:38:36,826 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:38:36,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:38:36,833 INFO L82 PathProgramCache]: Analyzing trace with hash 560135365, now seen corresponding path program 1 times [2020-10-27 22:38:36,844 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:38:36,844 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402388291] [2020-10-27 22:38:36,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:38:37,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:37,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:37,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:37,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:38:37,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:37,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-27 22:38:37,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:37,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 22:38:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-27 22:38:37,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:38:37,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-10-27 22:38:37,442 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:38:37,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:37,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:37,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:37,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:38:37,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:37,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-27 22:38:37,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:37,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:38:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:37,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:38:37,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:37,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:38:37,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:37,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:37,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:37,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:38:37,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:37,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 22:38:37,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:37,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:38:37,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:37,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:38:37,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:37,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 22:38:37,552 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402388291] [2020-10-27 22:38:37,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 22:38:37,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-27 22:38:37,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423425042] [2020-10-27 22:38:37,561 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-27 22:38:37,561 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:38:37,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-27 22:38:37,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-27 22:38:37,578 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 6 states. [2020-10-27 22:38:37,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:38:37,866 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2020-10-27 22:38:37,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-27 22:38:37,868 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2020-10-27 22:38:37,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:38:37,878 INFO L225 Difference]: With dead ends: 38 [2020-10-27 22:38:37,879 INFO L226 Difference]: Without dead ends: 20 [2020-10-27 22:38:37,882 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-10-27 22:38:37,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-10-27 22:38:37,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-10-27 22:38:37,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-27 22:38:37,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-10-27 22:38:37,933 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 15 [2020-10-27 22:38:37,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:38:37,933 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-10-27 22:38:37,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-27 22:38:37,933 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-10-27 22:38:37,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-27 22:38:37,935 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:38:37,936 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:38:37,936 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 22:38:37,936 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:38:37,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:38:37,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1295611761, now seen corresponding path program 1 times [2020-10-27 22:38:37,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:38:37,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2004888087] [2020-10-27 22:38:37,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:38:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:37,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:38,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:38,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:38:38,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:38,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-27 22:38:38,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:38,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 22:38:38,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-27 22:38:38,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-27 22:38:38,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:38,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:38:38,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:38,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:38,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:38,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:38:38,369 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:38,369 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-27 22:38:38,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:38,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:38:38,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:38,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:38:38,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:38,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:38:38,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:38,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:38,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:38,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:38:38,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:38,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 22:38:38,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:38,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:38:38,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:38,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:38:38,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:38,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:38,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:38,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:38,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:38,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:38:38,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:38,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 22:38:38,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:38,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:38:38,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:38,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:38:38,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:38:38,498 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-27 22:38:38,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2004888087] [2020-10-27 22:38:38,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:38:38,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-27 22:38:38,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317280224] [2020-10-27 22:38:38,501 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-27 22:38:38,501 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:38:38,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-27 22:38:38,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-10-27 22:38:38,503 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 8 states. [2020-10-27 22:38:38,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:38:38,862 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2020-10-27 22:38:38,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-27 22:38:38,863 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2020-10-27 22:38:38,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:38:38,864 INFO L225 Difference]: With dead ends: 28 [2020-10-27 22:38:38,864 INFO L226 Difference]: Without dead ends: 23 [2020-10-27 22:38:38,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-10-27 22:38:38,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-27 22:38:38,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-27 22:38:38,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-27 22:38:38,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-10-27 22:38:38,874 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2020-10-27 22:38:38,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:38:38,874 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-10-27 22:38:38,875 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-27 22:38:38,875 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-10-27 22:38:38,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-27 22:38:38,876 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:38:38,876 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:38:38,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 22:38:38,877 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:38:38,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:38:38,877 INFO L82 PathProgramCache]: Analyzing trace with hash -116387003, now seen corresponding path program 2 times [2020-10-27 22:38:38,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:38:38,878 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [456435540] [2020-10-27 22:38:38,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:38:38,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:38,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:39,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:39,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:38:39,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:39,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-27 22:38:39,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:39,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-27 22:38:39,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-27 22:38:39,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-27 22:38:39,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 22:38:39,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:38:39,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:39,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:39,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:39,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:38:39,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:39,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:38:39,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:39,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:38:39,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:39,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:38:39,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:39,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:38:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:39,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:39,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:39,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:38:39,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:39,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 22:38:39,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:39,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:38:39,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:39,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:38:39,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:39,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:39,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:39,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:39,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:38:39,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:39,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 22:38:39,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:38:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:39,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:38:39,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:39,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:39,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:39,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:39,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:39,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:38:39,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:39,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:38:39,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:39,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:38:39,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:39,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:38:39,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:39,419 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-27 22:38:39,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [456435540] [2020-10-27 22:38:39,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:38:39,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-27 22:38:39,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965379220] [2020-10-27 22:38:39,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-27 22:38:39,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:38:39,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-27 22:38:39,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-27 22:38:39,423 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 10 states. [2020-10-27 22:38:39,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:38:39,863 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2020-10-27 22:38:39,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 22:38:39,865 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2020-10-27 22:38:39,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:38:39,867 INFO L225 Difference]: With dead ends: 31 [2020-10-27 22:38:39,867 INFO L226 Difference]: Without dead ends: 26 [2020-10-27 22:38:39,868 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-10-27 22:38:39,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-10-27 22:38:39,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-10-27 22:38:39,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-27 22:38:39,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-10-27 22:38:39,875 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 27 [2020-10-27 22:38:39,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:38:39,876 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-10-27 22:38:39,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-27 22:38:39,876 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-10-27 22:38:39,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-27 22:38:39,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:38:39,877 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:38:39,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 22:38:39,878 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:38:39,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:38:39,878 INFO L82 PathProgramCache]: Analyzing trace with hash -738125937, now seen corresponding path program 3 times [2020-10-27 22:38:39,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:38:39,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [349927743] [2020-10-27 22:38:39,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:38:39,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:39,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:40,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:40,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:38:40,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:40,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-27 22:38:40,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:40,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-27 22:38:40,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-27 22:38:40,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 22:38:40,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:40,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:38:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:40,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:40,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:40,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:38:40,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:38:40,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:38:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:38:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:40,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:38:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:40,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:40,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:40,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:38:40,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:40,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-27 22:38:40,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:40,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:38:40,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:40,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:38:40,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:40,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:40,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:40,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:40,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:40,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:38:40,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:40,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 22:38:40,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:40,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:38:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:40,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:38:40,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:40,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:40,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:40,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:40,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:38:40,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:40,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 22:38:40,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:38:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:40,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:38:40,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:40,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:40,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:40,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:40,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:38:40,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:40,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:38:40,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:38:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:40,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:38:40,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:40,733 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-27 22:38:40,733 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [349927743] [2020-10-27 22:38:40,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:38:40,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-27 22:38:40,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975097304] [2020-10-27 22:38:40,735 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-27 22:38:40,735 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:38:40,735 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-27 22:38:40,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2020-10-27 22:38:40,736 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 12 states. [2020-10-27 22:38:41,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:38:41,404 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2020-10-27 22:38:41,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 22:38:41,405 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2020-10-27 22:38:41,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:38:41,406 INFO L225 Difference]: With dead ends: 34 [2020-10-27 22:38:41,406 INFO L226 Difference]: Without dead ends: 29 [2020-10-27 22:38:41,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2020-10-27 22:38:41,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-27 22:38:41,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-10-27 22:38:41,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-10-27 22:38:41,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2020-10-27 22:38:41,415 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 33 [2020-10-27 22:38:41,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:38:41,416 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2020-10-27 22:38:41,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-27 22:38:41,416 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2020-10-27 22:38:41,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-27 22:38:41,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:38:41,418 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:38:41,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 22:38:41,418 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:38:41,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:38:41,419 INFO L82 PathProgramCache]: Analyzing trace with hash 1342585285, now seen corresponding path program 4 times [2020-10-27 22:38:41,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:38:41,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533494378] [2020-10-27 22:38:41,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:38:41,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:41,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:41,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:41,769 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:38:41,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:41,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 326 [2020-10-27 22:38:41,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:41,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-27 22:38:41,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-27 22:38:41,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-27 22:38:41,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:41,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:38:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:41,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:41,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:41,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:38:41,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:41,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:38:41,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:41,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:38:41,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:41,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:38:41,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:41,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:38:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:41,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:42,048 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:42,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:38:42,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:42,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-27 22:38:42,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:38:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:42,049 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:38:42,049 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:42,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:42,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:42,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:42,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:42,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:38:42,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:42,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 22:38:42,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:42,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:38:42,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:42,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:38:42,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:42,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:42,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:42,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:42,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:38:42,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:42,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 22:38:42,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:42,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:38:42,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:42,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:38:42,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:42,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:42,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:42,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:42,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:42,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:38:42,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:42,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 22:38:42,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:38:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:42,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:38:42,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:42,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:42,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:42,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:42,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:42,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:38:42,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:42,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:38:42,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:38:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:42,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:38:42,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-10-27 22:38:42,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533494378] [2020-10-27 22:38:42,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:38:42,482 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-27 22:38:42,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115293972] [2020-10-27 22:38:42,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-27 22:38:42,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:38:42,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-27 22:38:42,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2020-10-27 22:38:42,484 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 14 states. [2020-10-27 22:38:43,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:38:43,293 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2020-10-27 22:38:43,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-27 22:38:43,294 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 39 [2020-10-27 22:38:43,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:38:43,296 INFO L225 Difference]: With dead ends: 37 [2020-10-27 22:38:43,296 INFO L226 Difference]: Without dead ends: 32 [2020-10-27 22:38:43,297 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 [2020-10-27 22:38:43,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-27 22:38:43,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2020-10-27 22:38:43,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-27 22:38:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2020-10-27 22:38:43,305 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 39 [2020-10-27 22:38:43,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:38:43,310 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2020-10-27 22:38:43,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-27 22:38:43,310 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2020-10-27 22:38:43,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-27 22:38:43,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:38:43,313 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:38:43,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 22:38:43,313 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:38:43,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:38:43,318 INFO L82 PathProgramCache]: Analyzing trace with hash 1660180111, now seen corresponding path program 5 times [2020-10-27 22:38:43,319 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:38:43,319 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1809391580] [2020-10-27 22:38:43,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:38:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:43,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:43,775 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:43,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:38:43,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:43,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 433 [2020-10-27 22:38:43,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-27 22:38:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-27 22:38:43,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-27 22:38:43,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-27 22:38:43,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:38:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:43,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:43,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:43,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:38:43,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:43,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:38:43,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:43,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:38:43,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:43,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:38:43,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:43,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:38:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:43,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:44,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:44,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:38:44,071 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:44,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 192 [2020-10-27 22:38:44,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:44,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:38:44,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:44,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:38:44,072 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:44,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:44,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:44,148 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:44,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:44,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:38:44,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:44,271 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-10-27 22:38:44,271 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:38:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:44,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:38:44,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:44,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:44,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:44,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:44,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:44,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:38:44,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:44,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-27 22:38:44,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:44,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:38:44,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:44,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:38:44,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:38:44,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:44,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:44,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:44,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:44,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:38:44,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:44,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 22:38:44,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:38:44,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:44,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:38:44,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:44,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:44,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:44,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:44,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:44,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:38:44,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:44,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:38:44,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:38:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:44,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:38:44,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:44,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:44,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:44,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:44,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:44,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:38:44,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:44,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:38:44,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:44,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:38:44,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:44,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:38:44,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 22:38:44,682 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-10-27 22:38:44,682 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1809391580] [2020-10-27 22:38:44,684 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:38:44,684 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-27 22:38:44,684 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220501959] [2020-10-27 22:38:44,685 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-27 22:38:44,686 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:38:44,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-27 22:38:44,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2020-10-27 22:38:44,688 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 16 states. [2020-10-27 22:38:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:38:45,606 INFO L93 Difference]: Finished difference Result 40 states and 41 transitions. [2020-10-27 22:38:45,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-27 22:38:45,607 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2020-10-27 22:38:45,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:38:45,609 INFO L225 Difference]: With dead ends: 40 [2020-10-27 22:38:45,609 INFO L226 Difference]: Without dead ends: 35 [2020-10-27 22:38:45,612 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 [2020-10-27 22:38:45,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-27 22:38:45,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2020-10-27 22:38:45,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2020-10-27 22:38:45,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 36 transitions. [2020-10-27 22:38:45,625 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 36 transitions. Word has length 45 [2020-10-27 22:38:45,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:38:45,628 INFO L481 AbstractCegarLoop]: Abstraction has 35 states and 36 transitions. [2020-10-27 22:38:45,628 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-27 22:38:45,628 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 36 transitions. [2020-10-27 22:38:45,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-10-27 22:38:45,630 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:38:45,630 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:38:45,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 22:38:45,634 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:38:45,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:38:45,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1624338501, now seen corresponding path program 6 times [2020-10-27 22:38:45,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:38:45,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544952970] [2020-10-27 22:38:45,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:38:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:45,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:46,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:46,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:38:46,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:46,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 504 [2020-10-27 22:38:46,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-27 22:38:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-27 22:38:46,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-27 22:38:46,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:46,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:38:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:46,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:46,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:46,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:38:46,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:46,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:38:46,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:38:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:38:46,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:46,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:38:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:46,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:46,587 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:46,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:38:46,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:46,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-27 22:38:46,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:46,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:38:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:46,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:38:46,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:46,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:46,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:46,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:46,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:46,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:38:46,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:46,866 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-10-27 22:38:46,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:38:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:46,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:38:46,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:46,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:46,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:47,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:47,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:38:47,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:47,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-27 22:38:47,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:38:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:47,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:38:47,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:47,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:47,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:47,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:47,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:38:47,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:47,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-27 22:38:47,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:47,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:38:47,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:47,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:38:47,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:47,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:47,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:47,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:47,254 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:38:47,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:47,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 22:38:47,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:38:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:47,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:38:47,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:47,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:47,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:47,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:47,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:38:47,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:47,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:38:47,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:47,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:38:47,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:47,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:38:47,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:47,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:47,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:47,392 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:47,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:38:47,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:47,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 22:38:47,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:47,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:38:47,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:47,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:38:47,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2020-10-27 22:38:47,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544952970] [2020-10-27 22:38:47,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:38:47,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-27 22:38:47,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031208996] [2020-10-27 22:38:47,461 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-27 22:38:47,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:38:47,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-27 22:38:47,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=273, Unknown=0, NotChecked=0, Total=306 [2020-10-27 22:38:47,463 INFO L87 Difference]: Start difference. First operand 35 states and 36 transitions. Second operand 18 states. [2020-10-27 22:38:48,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:38:48,490 INFO L93 Difference]: Finished difference Result 43 states and 44 transitions. [2020-10-27 22:38:48,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-27 22:38:48,490 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 51 [2020-10-27 22:38:48,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:38:48,492 INFO L225 Difference]: With dead ends: 43 [2020-10-27 22:38:48,492 INFO L226 Difference]: Without dead ends: 38 [2020-10-27 22:38:48,494 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=93, Invalid=963, Unknown=0, NotChecked=0, Total=1056 [2020-10-27 22:38:48,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-10-27 22:38:48,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-10-27 22:38:48,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-27 22:38:48,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 39 transitions. [2020-10-27 22:38:48,501 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 39 transitions. Word has length 51 [2020-10-27 22:38:48,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:38:48,502 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 39 transitions. [2020-10-27 22:38:48,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-27 22:38:48,502 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 39 transitions. [2020-10-27 22:38:48,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-27 22:38:48,503 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:38:48,503 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:38:48,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 22:38:48,504 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:38:48,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:38:48,504 INFO L82 PathProgramCache]: Analyzing trace with hash 502547855, now seen corresponding path program 7 times [2020-10-27 22:38:48,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:38:48,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [824167848] [2020-10-27 22:38:48,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:38:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:48,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:49,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:49,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:38:49,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:49,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 501 [2020-10-27 22:38:49,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-27 22:38:49,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-27 22:38:49,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-27 22:38:49,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:49,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:38:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:49,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:49,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:49,109 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:38:49,109 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:49,109 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:38:49,109 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:49,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:38:49,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:49,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:38:49,110 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:49,112 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:38:49,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:49,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:49,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:49,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:38:49,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:49,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 327 [2020-10-27 22:38:49,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:49,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:38:49,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:49,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:38:49,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:49,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:49,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:49,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:49,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:49,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:38:49,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:49,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-27 22:38:49,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:38:49,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:49,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:38:49,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:49,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:49,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:49,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:49,950 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:49,950 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:38:49,950 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:49,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-27 22:38:49,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:49,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:38:49,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:49,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:38:49,951 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:49,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:50,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:50,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:50,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:50,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:38:50,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:50,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-27 22:38:50,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:50,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:38:50,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:50,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:38:50,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:50,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:50,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:50,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:50,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:50,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:38:50,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:50,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-27 22:38:50,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:50,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:38:50,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:50,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:38:50,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:50,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:50,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:50,307 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:50,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:38:50,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:50,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 22:38:50,308 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:38:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:50,308 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:38:50,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:50,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:50,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:50,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:50,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:38:50,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:50,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:38:50,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:50,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:38:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:50,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:38:50,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:50,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:50,460 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:50,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:50,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:38:50,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:50,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:38:50,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:50,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:38:50,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:50,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:38:50,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:50,516 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-10-27 22:38:50,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [824167848] [2020-10-27 22:38:50,517 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:38:50,517 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-27 22:38:50,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932356902] [2020-10-27 22:38:50,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-27 22:38:50,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:38:50,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-27 22:38:50,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=343, Unknown=0, NotChecked=0, Total=380 [2020-10-27 22:38:50,519 INFO L87 Difference]: Start difference. First operand 38 states and 39 transitions. Second operand 20 states. [2020-10-27 22:38:51,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:38:51,803 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2020-10-27 22:38:51,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-27 22:38:51,803 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 57 [2020-10-27 22:38:51,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:38:51,805 INFO L225 Difference]: With dead ends: 46 [2020-10-27 22:38:51,805 INFO L226 Difference]: Without dead ends: 41 [2020-10-27 22:38:51,806 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 [2020-10-27 22:38:51,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-10-27 22:38:51,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-10-27 22:38:51,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-10-27 22:38:51,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 42 transitions. [2020-10-27 22:38:51,814 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 42 transitions. Word has length 57 [2020-10-27 22:38:51,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:38:51,814 INFO L481 AbstractCegarLoop]: Abstraction has 41 states and 42 transitions. [2020-10-27 22:38:51,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-27 22:38:51,815 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 42 transitions. [2020-10-27 22:38:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-27 22:38:51,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:38:51,816 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:38:51,816 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 22:38:51,816 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:38:51,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:38:51,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1459767611, now seen corresponding path program 8 times [2020-10-27 22:38:51,817 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:38:51,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [678352327] [2020-10-27 22:38:51,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:38:51,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:51,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:52,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:52,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:38:52,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:52,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 598 [2020-10-27 22:38:52,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-27 22:38:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-27 22:38:52,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:38:52,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:52,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:38:52,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:52,527 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:52,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:52,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:38:52,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:52,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:38:52,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:52,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:38:52,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:52,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:38:52,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:52,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:38:52,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:52,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:52,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:52,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:38:52,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:52,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 403 [2020-10-27 22:38:52,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:52,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:38:52,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:52,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:38:52,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:52,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:52,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:53,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:53,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:53,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:38:53,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:53,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 296 [2020-10-27 22:38:53,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:38:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:38:53,297 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:53,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:53,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:53,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:53,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:53,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:38:53,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:53,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-27 22:38:53,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:53,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:38:53,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:53,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:38:53,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:53,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:53,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:53,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:53,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:53,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:38:53,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:53,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-27 22:38:53,791 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:38:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:53,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:38:53,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:53,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:53,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:53,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:53,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:53,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:38:53,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:53,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-27 22:38:53,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:53,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:38:53,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:53,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:38:53,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:54,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:54,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:54,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:54,074 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:54,074 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:38:54,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:54,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-27 22:38:54,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:54,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:38:54,075 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:54,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:38:54,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:54,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:54,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:54,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:54,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:54,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:38:54,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:54,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 22:38:54,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:54,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:38:54,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:54,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:38:54,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:54,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:54,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:54,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:54,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:38:54,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:54,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-27 22:38:54,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:38:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:54,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:38:54,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:54,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:54,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:54,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:54,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:54,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:38:54,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:54,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:38:54,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:54,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:38:54,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:54,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:38:54,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:54,381 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-27 22:38:54,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [678352327] [2020-10-27 22:38:54,381 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:38:54,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-27 22:38:54,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83923703] [2020-10-27 22:38:54,383 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-27 22:38:54,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:38:54,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-27 22:38:54,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=421, Unknown=0, NotChecked=0, Total=462 [2020-10-27 22:38:54,389 INFO L87 Difference]: Start difference. First operand 41 states and 42 transitions. Second operand 22 states. [2020-10-27 22:38:55,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:38:55,948 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-10-27 22:38:55,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-27 22:38:55,949 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 63 [2020-10-27 22:38:55,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:38:55,950 INFO L225 Difference]: With dead ends: 49 [2020-10-27 22:38:55,950 INFO L226 Difference]: Without dead ends: 44 [2020-10-27 22:38:55,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 171 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=117, Invalid=1523, Unknown=0, NotChecked=0, Total=1640 [2020-10-27 22:38:55,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-27 22:38:55,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-10-27 22:38:55,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-10-27 22:38:55,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 45 transitions. [2020-10-27 22:38:55,968 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 45 transitions. Word has length 63 [2020-10-27 22:38:55,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:38:55,970 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 45 transitions. [2020-10-27 22:38:55,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-27 22:38:55,970 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 45 transitions. [2020-10-27 22:38:55,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-27 22:38:55,972 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:38:55,972 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:38:55,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 22:38:55,973 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:38:55,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:38:55,974 INFO L82 PathProgramCache]: Analyzing trace with hash 273998991, now seen corresponding path program 9 times [2020-10-27 22:38:55,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:38:55,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [974773443] [2020-10-27 22:38:55,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:38:55,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:56,010 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:56,733 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:56,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:38:56,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:56,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 734 [2020-10-27 22:38:56,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:56,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-27 22:38:56,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-27 22:38:56,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-27 22:38:56,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:56,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:38:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:56,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:56,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:56,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:38:56,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:56,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:38:56,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:38:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:56,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:38:56,808 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:56,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:38:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:56,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:57,365 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:57,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:38:57,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:57,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 540 [2020-10-27 22:38:57,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:38:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:57,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:38:57,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:57,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:57,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:57,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:57,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:38:57,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:57,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 388 [2020-10-27 22:38:57,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:57,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:38:57,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:57,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:38:57,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:57,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:57,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:57,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:58,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:58,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:38:58,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:58,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-10-27 22:38:58,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:58,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:38:58,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:58,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:38:58,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:58,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:58,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:58,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:58,371 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:38:58,371 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:58,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 194 [2020-10-27 22:38:58,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:58,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:38:58,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:58,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:38:58,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:58,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:58,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:58,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:58,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:58,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:38:58,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:58,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 143 [2020-10-27 22:38:58,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:38:58,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:58,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:38:58,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:58,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:58,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:58,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:58,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:58,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:38:58,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:58,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 22:38:58,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:58,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:38:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:58,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:38:58,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:58,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:58,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:58,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:58,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:58,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:38:58,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:58,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-27 22:38:58,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:38:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:58,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:38:58,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:58,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:58,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:58,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:58,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:58,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:38:58,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:58,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-27 22:38:58,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:38:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:58,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:38:58,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:58,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:58,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:58,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:59,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:59,007 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:38:59,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:59,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 22:38:59,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:59,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:38:59,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:59,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:38:59,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:59,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:38:59,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:38:59,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:38:59,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:38:59,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:38:59,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:38:59,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 22:38:59,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:38:59,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:38:59,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:38:59,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:38:59,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:38:59,139 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2020-10-27 22:38:59,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [974773443] [2020-10-27 22:38:59,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:38:59,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-27 22:38:59,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510913355] [2020-10-27 22:38:59,141 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-27 22:38:59,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:38:59,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-27 22:38:59,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=507, Unknown=0, NotChecked=0, Total=552 [2020-10-27 22:38:59,142 INFO L87 Difference]: Start difference. First operand 44 states and 45 transitions. Second operand 24 states. [2020-10-27 22:39:01,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:39:01,005 INFO L93 Difference]: Finished difference Result 52 states and 53 transitions. [2020-10-27 22:39:01,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-10-27 22:39:01,006 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 69 [2020-10-27 22:39:01,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:39:01,007 INFO L225 Difference]: With dead ends: 52 [2020-10-27 22:39:01,007 INFO L226 Difference]: Without dead ends: 47 [2020-10-27 22:39:01,008 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 [2020-10-27 22:39:01,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-27 22:39:01,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-27 22:39:01,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-27 22:39:01,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 48 transitions. [2020-10-27 22:39:01,016 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 48 transitions. Word has length 69 [2020-10-27 22:39:01,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:39:01,016 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 48 transitions. [2020-10-27 22:39:01,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-27 22:39:01,016 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 48 transitions. [2020-10-27 22:39:01,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-27 22:39:01,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:39:01,018 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:39:01,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 22:39:01,018 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:39:01,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:39:01,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1458107067, now seen corresponding path program 10 times [2020-10-27 22:39:01,019 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:39:01,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [303456844] [2020-10-27 22:39:01,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:39:01,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:01,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:01,897 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:01,897 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:39:01,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:01,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 855 [2020-10-27 22:39:01,898 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:01,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-27 22:39:01,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-27 22:39:01,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-27 22:39:01,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:01,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:39:01,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:01,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:01,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:01,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:39:01,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:01,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:39:01,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:01,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:39:01,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:01,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:39:01,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:01,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:39:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:02,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:02,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:02,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:39:02,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:02,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 643 [2020-10-27 22:39:02,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:39:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:02,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:39:02,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:02,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:02,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:03,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:03,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:39:03,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:03,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 452 [2020-10-27 22:39:03,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:39:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:03,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:39:03,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:03,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:03,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:03,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:03,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:03,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:39:03,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:03,625 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 399 [2020-10-27 22:39:03,625 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:03,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:39:03,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:03,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:39:03,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:03,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:03,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:03,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:03,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:03,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:39:03,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:03,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-27 22:39:03,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:03,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:39:03,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:03,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:39:03,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:04,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:04,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:04,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:04,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:04,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:39:04,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 193 [2020-10-27 22:39:04,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:39:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:04,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:39:04,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:04,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:04,268 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:04,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:04,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:39:04,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:04,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-10-27 22:39:04,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:39:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:04,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:39:04,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:04,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:04,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:04,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:04,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:04,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:39:04,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:04,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-27 22:39:04,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:39:04,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:04,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:39:04,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:04,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:04,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:04,586 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:04,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:04,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:39:04,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:04,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 22:39:04,628 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:39:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:04,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:39:04,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:04,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:04,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:04,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:04,723 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:04,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:39:04,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:04,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:39:04,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:04,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:39:04,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:04,724 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:39:04,725 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:04,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:04,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:04,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:04,810 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:04,811 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:39:04,811 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:04,811 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:39:04,811 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:04,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:39:04,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:04,812 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:39:04,812 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:04,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:04,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:04,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:04,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:04,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:39:04,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:04,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 22:39:04,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:39:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:39:04,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:04,981 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-10-27 22:39:04,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [303456844] [2020-10-27 22:39:04,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:39:04,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-27 22:39:04,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856006912] [2020-10-27 22:39:04,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-27 22:39:04,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:39:04,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-27 22:39:04,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=601, Unknown=0, NotChecked=0, Total=650 [2020-10-27 22:39:04,986 INFO L87 Difference]: Start difference. First operand 47 states and 48 transitions. Second operand 26 states. [2020-10-27 22:39:07,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:39:07,062 INFO L93 Difference]: Finished difference Result 55 states and 56 transitions. [2020-10-27 22:39:07,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-27 22:39:07,070 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 75 [2020-10-27 22:39:07,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:39:07,071 INFO L225 Difference]: With dead ends: 55 [2020-10-27 22:39:07,071 INFO L226 Difference]: Without dead ends: 50 [2020-10-27 22:39:07,072 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 [2020-10-27 22:39:07,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-10-27 22:39:07,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2020-10-27 22:39:07,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2020-10-27 22:39:07,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 51 transitions. [2020-10-27 22:39:07,082 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 51 transitions. Word has length 75 [2020-10-27 22:39:07,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:39:07,082 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 51 transitions. [2020-10-27 22:39:07,083 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-27 22:39:07,083 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 51 transitions. [2020-10-27 22:39:07,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2020-10-27 22:39:07,084 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:39:07,084 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:39:07,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 22:39:07,084 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:39:07,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:39:07,085 INFO L82 PathProgramCache]: Analyzing trace with hash -764791921, now seen corresponding path program 11 times [2020-10-27 22:39:07,086 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:39:07,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087067425] [2020-10-27 22:39:07,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:39:07,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:07,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:08,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:08,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:39:08,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:08,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 942 [2020-10-27 22:39:08,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-27 22:39:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-27 22:39:08,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 22:39:08,056 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:08,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:39:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:08,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:08,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:08,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:39:08,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:08,140 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:39:08,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:08,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:39:08,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:08,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:39:08,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:08,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:39:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:08,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:08,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:08,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:39:08,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:08,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 684 [2020-10-27 22:39:08,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:08,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:39:08,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:08,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:39:08,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:08,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:08,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:08,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:09,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:09,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:39:09,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:09,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 429 [2020-10-27 22:39:09,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:09,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:39:09,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:09,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:39:09,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:09,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:09,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:09,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:09,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:39:09,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:09,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 303 [2020-10-27 22:39:09,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:09,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:39:09,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:09,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:39:09,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:09,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:09,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:09,749 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:10,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:10,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:39:10,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:10,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 259 [2020-10-27 22:39:10,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:10,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:39:10,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:10,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:39:10,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:10,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:10,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:10,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:10,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:10,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:39:10,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:10,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 178 [2020-10-27 22:39:10,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:10,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:39:10,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:10,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:39:10,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:10,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:10,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:10,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:10,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:39:10,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:10,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-27 22:39:10,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:10,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:39:10,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:10,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:39:10,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:10,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:10,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:10,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:10,604 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:10,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:39:10,604 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:10,604 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-27 22:39:10,604 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:10,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:39:10,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:10,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:39:10,605 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:10,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:10,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:10,741 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:10,741 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:39:10,741 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:10,741 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-27 22:39:10,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:39:10,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:10,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:39:10,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:10,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:10,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:10,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:10,869 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:39:10,869 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:10,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-27 22:39:10,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:39:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:10,870 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:39:10,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:10,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:10,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:10,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:10,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:39:10,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:10,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 22:39:10,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:10,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:39:10,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:10,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:39:10,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:11,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:11,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:11,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:11,096 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:39:11,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:11,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:39:11,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:11,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:39:11,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:11,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:39:11,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:11,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:11,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:11,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:11,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:39:11,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:11,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:39:11,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:39:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:11,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:39:11,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:11,276 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2020-10-27 22:39:11,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087067425] [2020-10-27 22:39:11,277 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:39:11,277 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-27 22:39:11,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870243968] [2020-10-27 22:39:11,277 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-27 22:39:11,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:39:11,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-27 22:39:11,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=703, Unknown=0, NotChecked=0, Total=756 [2020-10-27 22:39:11,279 INFO L87 Difference]: Start difference. First operand 50 states and 51 transitions. Second operand 28 states. [2020-10-27 22:39:13,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:39:13,696 INFO L93 Difference]: Finished difference Result 58 states and 59 transitions. [2020-10-27 22:39:13,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-27 22:39:13,697 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 81 [2020-10-27 22:39:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:39:13,699 INFO L225 Difference]: With dead ends: 58 [2020-10-27 22:39:13,699 INFO L226 Difference]: Without dead ends: 53 [2020-10-27 22:39:13,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=153, Invalid=2603, Unknown=0, NotChecked=0, Total=2756 [2020-10-27 22:39:13,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-27 22:39:13,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-10-27 22:39:13,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-10-27 22:39:13,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 54 transitions. [2020-10-27 22:39:13,710 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 54 transitions. Word has length 81 [2020-10-27 22:39:13,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:39:13,711 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 54 transitions. [2020-10-27 22:39:13,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-27 22:39:13,711 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 54 transitions. [2020-10-27 22:39:13,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-27 22:39:13,712 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:39:13,712 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:39:13,712 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 22:39:13,712 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:39:13,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:39:13,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1532398651, now seen corresponding path program 12 times [2020-10-27 22:39:13,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:39:13,713 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2095076794] [2020-10-27 22:39:13,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:39:13,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:13,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:14,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:14,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 22:39:14,726 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:14,726 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 990 [2020-10-27 22:39:14,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-27 22:39:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 76 [2020-10-27 22:39:14,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-27 22:39:14,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:14,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:39:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:14,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:14,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:14,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:39:14,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:14,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:39:14,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:39:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:14,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:39:14,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:14,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:39:14,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:14,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:15,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:15,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:39:15,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:15,548 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 723 [2020-10-27 22:39:15,548 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:15,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 22:39:15,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:15,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:39:15,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:15,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:15,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:15,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:16,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:16,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:39:16,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:16,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-10-27 22:39:16,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:16,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:39:16,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:16,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:39:16,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:16,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:16,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:16,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:16,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:39:16,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:16,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 367 [2020-10-27 22:39:16,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:16,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:39:16,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:16,538 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:39:16,538 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:16,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:16,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:16,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:16,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:16,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:39:16,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:16,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 322 [2020-10-27 22:39:16,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:16,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:39:16,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:16,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:39:16,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:16,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:16,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:16,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:17,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:17,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:39:17,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:17,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 253 [2020-10-27 22:39:17,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:17,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:39:17,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:17,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:39:17,239 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:17,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:17,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:17,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:17,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:17,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:39:17,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:17,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-27 22:39:17,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:39:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:17,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:39:17,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:17,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:17,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:17,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:17,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:17,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:39:17,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:17,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-27 22:39:17,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:17,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:39:17,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:17,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:39:17,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:17,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:17,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:17,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:17,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:39:17,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:17,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 22:39:17,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:17,804 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:39:17,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:17,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:39:17,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:17,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:17,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:17,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:17,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:17,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:39:17,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:17,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 22:39:17,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:39:17,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:17,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:39:17,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:18,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:18,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:18,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:18,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:18,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:39:18,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:18,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 22:39:18,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:18,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:39:18,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:18,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:39:18,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:18,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:18,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:18,144 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:18,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:18,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:39:18,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:18,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-27 22:39:18,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:18,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:39:18,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:18,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:39:18,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:18,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:18,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:18,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:18,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:18,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:39:18,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:18,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 22:39:18,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:18,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:39:18,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:18,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:39:18,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:18,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:18,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:18,372 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:18,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:39:18,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:18,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:39:18,373 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:18,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:39:18,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:18,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:39:18,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:18,457 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2020-10-27 22:39:18,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2095076794] [2020-10-27 22:39:18,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:39:18,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-27 22:39:18,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398073500] [2020-10-27 22:39:18,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-27 22:39:18,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:39:18,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-27 22:39:18,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=813, Unknown=0, NotChecked=0, Total=870 [2020-10-27 22:39:18,460 INFO L87 Difference]: Start difference. First operand 53 states and 54 transitions. Second operand 30 states. [2020-10-27 22:39:21,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:39:21,197 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-10-27 22:39:21,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-27 22:39:21,197 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 87 [2020-10-27 22:39:21,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:39:21,199 INFO L225 Difference]: With dead ends: 61 [2020-10-27 22:39:21,199 INFO L226 Difference]: Without dead ends: 56 [2020-10-27 22:39:21,201 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 [2020-10-27 22:39:21,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-10-27 22:39:21,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-10-27 22:39:21,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-27 22:39:21,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 57 transitions. [2020-10-27 22:39:21,208 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 57 transitions. Word has length 87 [2020-10-27 22:39:21,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:39:21,209 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 57 transitions. [2020-10-27 22:39:21,209 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-27 22:39:21,209 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 57 transitions. [2020-10-27 22:39:21,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-27 22:39:21,210 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:39:21,210 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:39:21,210 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 22:39:21,210 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:39:21,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:39:21,211 INFO L82 PathProgramCache]: Analyzing trace with hash -913821041, now seen corresponding path program 13 times [2020-10-27 22:39:21,211 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:39:21,211 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906251889] [2020-10-27 22:39:21,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:39:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:21,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:22,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:22,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 22:39:22,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:22,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 962 [2020-10-27 22:39:22,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 30 [2020-10-27 22:39:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-27 22:39:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-27 22:39:22,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:22,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:39:22,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:22,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:22,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:22,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:39:22,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:22,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:39:22,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:22,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:39:22,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:22,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:39:22,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:22,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:39:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:22,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:23,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:23,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:39:23,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:23,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 761 [2020-10-27 22:39:23,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:23,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 22:39:23,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:23,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 22:39:23,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:23,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:23,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:23,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:24,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:24,283 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:39:24,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1167 [2020-10-27 22:39:24,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 22:39:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:24,284 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:39:24,284 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:24,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:24,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:24,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:24,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:24,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:39:24,897 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:24,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 535 [2020-10-27 22:39:24,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:24,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:39:24,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:24,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:39:24,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:24,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:24,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:25,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:25,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:39:25,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:25,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 528 [2020-10-27 22:39:25,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:39:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:25,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:39:25,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:25,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:25,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:25,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:25,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:25,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:39:25,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:25,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-27 22:39:25,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:39:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:25,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:39:25,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:25,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:25,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:25,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:26,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:26,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:39:26,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:26,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-27 22:39:26,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:26,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:39:26,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:26,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:39:26,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:26,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:26,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:26,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:26,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:26,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:39:26,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:26,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 153 [2020-10-27 22:39:26,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:26,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:39:26,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:26,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:39:26,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:26,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:26,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:26,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:26,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:39:26,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:26,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-27 22:39:26,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:39:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:26,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:39:26,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:26,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:26,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:26,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:26,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:26,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:39:26,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:26,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-27 22:39:26,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:26,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:39:26,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:26,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:39:26,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:26,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:26,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:26,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:26,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:39:26,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:26,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-27 22:39:26,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:39:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:26,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:39:26,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:27,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:27,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:27,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:27,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:27,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:39:27,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:27,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 22:39:27,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:27,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:39:27,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:27,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:39:27,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:27,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:27,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:27,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:27,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:39:27,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:27,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-27 22:39:27,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:27,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:39:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:27,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:39:27,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:27,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:27,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:27,347 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:27,347 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:39:27,347 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:27,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:39:27,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:39:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:27,348 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:39:27,348 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:27,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:27,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:27,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:27,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:39:27,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:27,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:39:27,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:27,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:39:27,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:27,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:39:27,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:27,561 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 260 trivial. 0 not checked. [2020-10-27 22:39:27,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906251889] [2020-10-27 22:39:27,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:39:27,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2020-10-27 22:39:27,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201112571] [2020-10-27 22:39:27,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-10-27 22:39:27,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:39:27,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-10-27 22:39:27,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=931, Unknown=0, NotChecked=0, Total=992 [2020-10-27 22:39:27,564 INFO L87 Difference]: Start difference. First operand 56 states and 57 transitions. Second operand 32 states. [2020-10-27 22:39:30,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:39:30,663 INFO L93 Difference]: Finished difference Result 64 states and 65 transitions. [2020-10-27 22:39:30,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-27 22:39:30,664 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 93 [2020-10-27 22:39:30,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:39:30,666 INFO L225 Difference]: With dead ends: 64 [2020-10-27 22:39:30,666 INFO L226 Difference]: Without dead ends: 59 [2020-10-27 22:39:30,668 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=177, Invalid=3483, Unknown=0, NotChecked=0, Total=3660 [2020-10-27 22:39:30,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-10-27 22:39:30,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-10-27 22:39:30,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-27 22:39:30,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 60 transitions. [2020-10-27 22:39:30,676 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 60 transitions. Word has length 93 [2020-10-27 22:39:30,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:39:30,676 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 60 transitions. [2020-10-27 22:39:30,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-10-27 22:39:30,676 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 60 transitions. [2020-10-27 22:39:30,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-27 22:39:30,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:39:30,678 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:39:30,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 22:39:30,678 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:39:30,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:39:30,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1648421445, now seen corresponding path program 14 times [2020-10-27 22:39:30,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:39:30,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1388878978] [2020-10-27 22:39:30,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:39:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:30,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:31,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:31,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 22:39:31,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:31,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1076 [2020-10-27 22:39:31,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:31,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 32 [2020-10-27 22:39:31,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-27 22:39:31,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-27 22:39:31,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:31,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:39:31,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:31,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:31,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:31,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:39:31,859 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:31,859 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:39:31,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:31,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:39:31,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:31,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:39:31,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:31,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:39:31,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:31,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:32,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:32,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 22:39:32,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:32,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1091 [2020-10-27 22:39:32,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:32,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 22:39:32,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:32,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 22:39:32,974 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:33,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:33,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:33,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:33,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:33,743 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:39:33,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:33,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 717 [2020-10-27 22:39:33,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 22:39:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:33,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 22:39:33,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:33,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:33,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:33,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:34,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:34,361 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:39:34,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 562 [2020-10-27 22:39:34,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 22:39:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:34,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:39:34,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:34,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:34,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:34,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:34,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:39:34,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:34,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 456 [2020-10-27 22:39:34,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:39:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:34,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:39:34,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:34,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:34,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:34,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:35,289 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:35,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:39:35,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:35,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 351 [2020-10-27 22:39:35,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:39:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:35,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:39:35,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:35,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:35,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:35,365 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:35,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:35,638 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:39:35,638 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:35,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 279 [2020-10-27 22:39:35,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:35,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:39:35,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:35,639 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:39:35,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:35,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:35,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:35,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:35,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:35,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:39:35,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:35,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-27 22:39:35,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:39:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:35,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:39:35,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:35,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:36,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:36,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:36,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:39:36,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:36,148 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-27 22:39:36,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:39:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:36,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:39:36,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:36,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:36,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:36,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:36,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:39:36,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:36,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-27 22:39:36,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:36,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:39:36,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:36,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:39:36,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:36,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:36,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:36,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:36,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:39:36,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:36,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-27 22:39:36,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:39:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:36,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:39:36,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:36,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:36,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:36,624 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:36,624 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:39:36,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:36,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 22:39:36,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:39:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:36,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:39:36,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:36,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:36,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:36,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:36,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:36,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:39:36,751 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:36,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 22:39:36,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:36,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:39:36,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:36,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:39:36,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:36,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:36,868 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:36,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:36,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:39:36,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:36,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:39:36,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:36,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:39:36,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:36,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:39:36,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:36,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:36,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:36,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:36,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:36,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:39:37,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:37,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:39:37,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:39:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:37,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:39:37,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:37,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:37,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:37,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:37,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:39:37,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:37,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:39:37,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:37,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:39:37,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:37,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:39:37,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:37,206 INFO L134 CoverageAnalysis]: Checked inductivity of 602 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 301 trivial. 0 not checked. [2020-10-27 22:39:37,206 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1388878978] [2020-10-27 22:39:37,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:39:37,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34] total 34 [2020-10-27 22:39:37,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603274026] [2020-10-27 22:39:37,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-10-27 22:39:37,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:39:37,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-10-27 22:39:37,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=1057, Unknown=0, NotChecked=0, Total=1122 [2020-10-27 22:39:37,208 INFO L87 Difference]: Start difference. First operand 59 states and 60 transitions. Second operand 34 states. [2020-10-27 22:39:40,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:39:40,480 INFO L93 Difference]: Finished difference Result 67 states and 68 transitions. [2020-10-27 22:39:40,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-27 22:39:40,481 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 99 [2020-10-27 22:39:40,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:39:40,483 INFO L225 Difference]: With dead ends: 67 [2020-10-27 22:39:40,483 INFO L226 Difference]: Without dead ends: 62 [2020-10-27 22:39:40,489 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 [2020-10-27 22:39:40,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-27 22:39:40,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2020-10-27 22:39:40,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-10-27 22:39:40,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 63 transitions. [2020-10-27 22:39:40,496 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 63 transitions. Word has length 99 [2020-10-27 22:39:40,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:39:40,496 INFO L481 AbstractCegarLoop]: Abstraction has 62 states and 63 transitions. [2020-10-27 22:39:40,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-10-27 22:39:40,497 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 63 transitions. [2020-10-27 22:39:40,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-10-27 22:39:40,498 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:39:40,498 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:39:40,498 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-27 22:39:40,498 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:39:40,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:39:40,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1745019279, now seen corresponding path program 15 times [2020-10-27 22:39:40,502 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:39:40,502 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [733025987] [2020-10-27 22:39:40,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:39:40,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:40,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:41,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:41,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 22:39:41,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:41,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1333 [2020-10-27 22:39:41,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 34 [2020-10-27 22:39:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 91 [2020-10-27 22:39:41,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-10-27 22:39:41,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:41,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:39:41,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:41,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:41,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:41,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:39:41,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:41,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:39:41,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:39:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:41,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:39:41,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:41,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:39:41,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:41,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:43,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:43,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 22:39:43,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:43,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1073 [2020-10-27 22:39:43,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 22:39:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:43,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 22:39:43,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:43,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:43,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:43,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:43,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 22:39:43,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:43,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 862 [2020-10-27 22:39:43,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 22:39:43,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:43,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 22:39:43,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:43,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:43,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:44,009 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:44,705 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:44,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:39:44,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:44,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-10-27 22:39:44,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 22:39:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:44,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 22:39:44,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:44,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:44,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:45,323 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:45,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:39:45,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:45,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 558 [2020-10-27 22:39:45,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 22:39:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:45,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:39:45,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:45,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:45,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:45,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:45,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:45,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:39:45,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:45,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-27 22:39:45,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:45,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:39:45,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:45,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:39:45,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:45,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:45,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:45,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:46,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:46,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:39:46,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:46,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-10-27 22:39:46,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:39:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:46,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:39:46,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:46,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:46,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:46,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:46,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:46,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:39:46,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:46,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-27 22:39:46,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:46,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:39:46,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:46,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:39:46,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:46,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:46,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:46,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:46,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:46,954 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:39:46,954 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:46,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-27 22:39:46,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:46,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:39:46,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:46,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:39:46,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:47,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:47,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:47,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:47,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:47,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:39:47,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:47,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 172 [2020-10-27 22:39:47,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:39:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:47,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:39:47,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:47,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:47,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:47,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:47,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:47,471 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:39:47,471 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:47,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-27 22:39:47,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:47,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:39:47,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:47,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:39:47,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:47,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:47,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:47,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:47,639 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:47,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:39:47,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:47,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 22:39:47,640 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:47,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:39:47,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:47,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:39:47,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-27 22:39:47,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:47,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:47,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:47,790 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:47,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:39:47,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:47,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-27 22:39:47,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:47,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:39:47,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:47,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:39:47,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:47,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:47,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:47,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:47,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:47,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:39:47,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:47,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:39:47,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:47,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:39:47,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:47,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:39:47,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:48,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:48,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:48,027 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:48,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:48,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:39:48,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:48,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 22:39:48,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:48,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:39:48,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:48,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:39:48,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:48,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:48,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:48,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:48,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:48,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:39:48,161 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:48,161 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:39:48,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:48,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:39:48,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:48,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:39:48,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:48,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:48,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:48,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:48,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:48,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:39:48,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:48,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:39:48,279 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:48,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:39:48,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:48,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:39:48,280 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:48,396 INFO L134 CoverageAnalysis]: Checked inductivity of 690 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2020-10-27 22:39:48,397 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [733025987] [2020-10-27 22:39:48,397 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:39:48,397 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36] total 36 [2020-10-27 22:39:48,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138359079] [2020-10-27 22:39:48,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 36 states [2020-10-27 22:39:48,398 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:39:48,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2020-10-27 22:39:48,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=1191, Unknown=0, NotChecked=0, Total=1260 [2020-10-27 22:39:48,399 INFO L87 Difference]: Start difference. First operand 62 states and 63 transitions. Second operand 36 states. [2020-10-27 22:39:52,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:39:52,152 INFO L93 Difference]: Finished difference Result 70 states and 71 transitions. [2020-10-27 22:39:52,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-10-27 22:39:52,154 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 105 [2020-10-27 22:39:52,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:39:52,155 INFO L225 Difference]: With dead ends: 70 [2020-10-27 22:39:52,155 INFO L226 Difference]: Without dead ends: 65 [2020-10-27 22:39:52,158 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 [2020-10-27 22:39:52,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-10-27 22:39:52,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-10-27 22:39:52,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-27 22:39:52,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 66 transitions. [2020-10-27 22:39:52,164 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 66 transitions. Word has length 105 [2020-10-27 22:39:52,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:39:52,165 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 66 transitions. [2020-10-27 22:39:52,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 36 states. [2020-10-27 22:39:52,165 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 66 transitions. [2020-10-27 22:39:52,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-27 22:39:52,167 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:39:52,167 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:39:52,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-27 22:39:52,167 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:39:52,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:39:52,168 INFO L82 PathProgramCache]: Analyzing trace with hash -345411387, now seen corresponding path program 16 times [2020-10-27 22:39:52,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:39:52,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1547544356] [2020-10-27 22:39:52,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:39:52,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:52,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:53,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:53,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 22:39:53,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:53,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1654 [2020-10-27 22:39:53,844 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:53,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 36 [2020-10-27 22:39:53,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-27 22:39:53,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:39:53,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:53,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:39:53,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:53,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:53,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:53,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:39:53,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:53,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:39:53,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:39:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:53,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:39:53,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:53,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:39:53,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:53,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:55,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:55,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 22:39:55,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:55,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1238 [2020-10-27 22:39:55,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:55,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 22:39:55,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:55,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 22:39:55,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:55,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:55,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:55,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:56,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:56,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 22:39:56,287 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:56,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1056 [2020-10-27 22:39:56,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 22:39:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:56,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 22:39:56,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:56,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:56,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:56,356 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:57,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:57,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 22:39:57,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:57,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 874 [2020-10-27 22:39:57,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 22:39:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:57,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 22:39:57,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:57,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:57,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:57,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:57,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:57,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:39:57,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:57,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 690 [2020-10-27 22:39:57,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 22:39:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:57,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 22:39:57,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:58,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:58,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:58,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:58,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:39:58,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:58,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 570 [2020-10-27 22:39:58,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 22:39:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:58,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:39:58,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:58,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:58,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:59,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:59,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:39:59,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:59,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-27 22:39:59,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:59,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:39:59,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:59,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:39:59,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:59,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:59,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:59,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:39:59,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:39:59,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:39:59,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:39:59,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 355 [2020-10-27 22:39:59,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:39:59,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:39:59,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:39:59,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:39:59,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:39:59,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:39:59,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:39:59,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:00,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:00,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:40:00,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:00,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 354 [2020-10-27 22:40:00,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:00,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:40:00,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:00,012 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:40:00,012 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:00,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:00,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:00,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:00,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:00,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:40:00,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:00,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 205 [2020-10-27 22:40:00,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:00,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:40:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:40:00,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:00,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:00,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:00,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:00,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:00,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:40:00,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:00,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-27 22:40:00,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:40:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:00,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:40:00,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:00,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:00,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:00,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:00,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:40:00,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:00,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-10-27 22:40:00,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:00,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:40:00,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:00,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:40:00,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:00,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:00,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:00,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:00,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:00,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:40:00,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:00,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-27 22:40:00,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:40:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:00,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:40:00,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:01,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:01,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:01,076 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:01,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:40:01,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:01,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 22:40:01,077 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:40:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:01,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:40:01,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:01,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:01,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:01,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:01,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:40:01,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:01,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-27 22:40:01,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:40:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:40:01,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:01,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:01,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:01,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:01,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:01,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:40:01,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:01,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:40:01,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:01,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:40:01,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:01,355 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:40:01,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:01,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:01,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:01,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:01,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:01,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:40:01,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:01,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:40:01,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:01,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:40:01,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:01,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:40:01,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:01,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:01,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:01,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:01,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:01,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:40:01,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:01,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:40:01,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:40:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:01,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:40:01,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:01,761 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2020-10-27 22:40:01,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1547544356] [2020-10-27 22:40:01,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:40:01,762 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38] total 38 [2020-10-27 22:40:01,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683185015] [2020-10-27 22:40:01,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 38 states [2020-10-27 22:40:01,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:40:01,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2020-10-27 22:40:01,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=1333, Unknown=0, NotChecked=0, Total=1406 [2020-10-27 22:40:01,766 INFO L87 Difference]: Start difference. First operand 65 states and 66 transitions. Second operand 38 states. [2020-10-27 22:40:05,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:40:05,959 INFO L93 Difference]: Finished difference Result 73 states and 74 transitions. [2020-10-27 22:40:05,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-10-27 22:40:05,960 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 111 [2020-10-27 22:40:05,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:40:05,961 INFO L225 Difference]: With dead ends: 73 [2020-10-27 22:40:05,962 INFO L226 Difference]: Without dead ends: 68 [2020-10-27 22:40:05,964 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 [2020-10-27 22:40:05,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-27 22:40:05,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-27 22:40:05,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-27 22:40:05,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 69 transitions. [2020-10-27 22:40:05,971 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 69 transitions. Word has length 111 [2020-10-27 22:40:05,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:40:05,971 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 69 transitions. [2020-10-27 22:40:05,971 INFO L482 AbstractCegarLoop]: Interpolant automaton has 38 states. [2020-10-27 22:40:05,971 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 69 transitions. [2020-10-27 22:40:05,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-27 22:40:05,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:40:05,973 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:40:05,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-27 22:40:05,973 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:40:05,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:40:05,974 INFO L82 PathProgramCache]: Analyzing trace with hash 1831747727, now seen corresponding path program 17 times [2020-10-27 22:40:05,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:40:05,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [257471682] [2020-10-27 22:40:05,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:40:06,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:06,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:07,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:07,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 22:40:07,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:07,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1977 [2020-10-27 22:40:07,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:07,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 38 [2020-10-27 22:40:07,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-27 22:40:07,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 56 [2020-10-27 22:40:07,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:08,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:40:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:08,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:08,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:08,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:40:08,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:08,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:40:08,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:08,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:40:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:08,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:40:08,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:08,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:40:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:08,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:09,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:09,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 22:40:09,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:09,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1534 [2020-10-27 22:40:09,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:09,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 22:40:09,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:09,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 22:40:09,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:09,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:09,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:09,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:10,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:10,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 22:40:10,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:10,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1283 [2020-10-27 22:40:10,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 22:40:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:10,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 22:40:10,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:11,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:11,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:11,038 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:12,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:12,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 22:40:12,096 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:12,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1068 [2020-10-27 22:40:12,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 22:40:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:12,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 22:40:12,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:12,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:12,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:12,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:13,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:13,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 22:40:13,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:13,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 926 [2020-10-27 22:40:13,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:13,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 22:40:13,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:13,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 22:40:13,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:13,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:13,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:13,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:13,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:40:13,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:13,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 725 [2020-10-27 22:40:13,890 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 22:40:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:13,890 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 22:40:13,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:13,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:13,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:14,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:14,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:40:14,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:14,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 552 [2020-10-27 22:40:14,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:14,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 22:40:14,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:14,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:40:14,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:14,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:14,603 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:15,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:15,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:40:15,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:15,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 483 [2020-10-27 22:40:15,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:40:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:15,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:40:15,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:15,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:15,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:15,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:15,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:40:15,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:15,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-27 22:40:15,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:15,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:40:15,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:15,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:40:15,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:15,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:15,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:15,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:15,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:40:15,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:15,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-27 22:40:15,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:15,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:40:15,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:15,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:40:15,858 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:15,940 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:15,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:15,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:16,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:16,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:40:16,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:16,150 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-27 22:40:16,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:16,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:40:16,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:16,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:40:16,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:16,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:16,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:16,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:16,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:16,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:40:16,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:16,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 231 [2020-10-27 22:40:16,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:16,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:40:16,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:16,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:40:16,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:16,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:16,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:16,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:16,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:16,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:40:16,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:16,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 123 [2020-10-27 22:40:16,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:16,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:40:16,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:16,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:40:16,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:16,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:16,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:16,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:16,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:16,884 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:40:16,884 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:16,884 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-27 22:40:16,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:40:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:16,885 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:40:16,885 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:16,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:16,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:16,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:17,039 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:17,039 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:40:17,039 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:17,039 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 22:40:17,039 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:17,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:40:17,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:17,040 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:40:17,040 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:17,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:17,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:17,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:17,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:40:17,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:17,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 22:40:17,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:17,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:40:17,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:17,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:40:17,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:17,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:17,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:17,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:17,322 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:17,323 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:40:17,323 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:17,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-27 22:40:17,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:40:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:17,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:40:17,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:17,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:17,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:17,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:17,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:40:17,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:17,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:40:17,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:40:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:40:17,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:17,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:17,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:17,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:17,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:40:17,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:17,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:40:17,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:40:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:17,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:40:17,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:17,735 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 442 trivial. 0 not checked. [2020-10-27 22:40:17,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [257471682] [2020-10-27 22:40:17,735 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:40:17,735 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40] total 40 [2020-10-27 22:40:17,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040041222] [2020-10-27 22:40:17,736 INFO L461 AbstractCegarLoop]: Interpolant automaton has 40 states [2020-10-27 22:40:17,736 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:40:17,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2020-10-27 22:40:17,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1483, Unknown=0, NotChecked=0, Total=1560 [2020-10-27 22:40:17,737 INFO L87 Difference]: Start difference. First operand 68 states and 69 transitions. Second operand 40 states. [2020-10-27 22:40:22,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:40:22,339 INFO L93 Difference]: Finished difference Result 76 states and 77 transitions. [2020-10-27 22:40:22,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-10-27 22:40:22,340 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 117 [2020-10-27 22:40:22,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:40:22,341 INFO L225 Difference]: With dead ends: 76 [2020-10-27 22:40:22,341 INFO L226 Difference]: Without dead ends: 71 [2020-10-27 22:40:22,345 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 666 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=225, Invalid=5627, Unknown=0, NotChecked=0, Total=5852 [2020-10-27 22:40:22,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-27 22:40:22,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-10-27 22:40:22,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-10-27 22:40:22,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 72 transitions. [2020-10-27 22:40:22,351 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 72 transitions. Word has length 117 [2020-10-27 22:40:22,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:40:22,351 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 72 transitions. [2020-10-27 22:40:22,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 40 states. [2020-10-27 22:40:22,351 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 72 transitions. [2020-10-27 22:40:22,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-27 22:40:22,353 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:40:22,353 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:40:22,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-27 22:40:22,353 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:40:22,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:40:22,359 INFO L82 PathProgramCache]: Analyzing trace with hash 1286539077, now seen corresponding path program 18 times [2020-10-27 22:40:22,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:40:22,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653735404] [2020-10-27 22:40:22,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:40:22,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:22,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:24,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:24,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:40:24,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:24,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2062 [2020-10-27 22:40:24,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 40 [2020-10-27 22:40:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 106 [2020-10-27 22:40:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-27 22:40:24,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:24,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:40:24,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:24,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:24,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:24,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:40:24,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:24,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:40:24,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:24,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:40:24,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:24,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:40:24,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:24,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:40:24,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:24,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:26,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:26,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 22:40:26,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:26,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1834 [2020-10-27 22:40:26,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:26,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 22:40:26,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:26,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-27 22:40:26,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:26,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:26,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:26,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:28,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:28,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 22:40:28,164 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1705 [2020-10-27 22:40:28,164 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 22:40:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:28,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 22:40:28,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:28,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:28,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:29,489 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:29,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 22:40:29,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:29,489 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1265 [2020-10-27 22:40:29,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:29,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 22:40:29,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:29,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 22:40:29,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:29,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:29,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:30,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:30,601 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 22:40:30,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:30,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1045 [2020-10-27 22:40:30,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:30,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 22:40:30,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:30,602 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 22:40:30,602 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:30,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:30,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:30,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:31,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:31,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 22:40:31,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:31,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 931 [2020-10-27 22:40:31,606 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 22:40:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:31,606 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 22:40:31,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:31,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:31,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:31,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:32,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:32,378 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:40:32,378 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:32,378 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 696 [2020-10-27 22:40:32,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:32,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 22:40:32,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:32,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 22:40:32,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:32,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:32,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:33,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:33,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:40:33,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:33,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 603 [2020-10-27 22:40:33,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:33,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 22:40:33,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:33,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:40:33,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:33,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:33,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:33,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:33,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:33,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:40:33,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:33,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 467 [2020-10-27 22:40:33,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:33,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:40:33,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:33,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:40:33,616 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:33,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:33,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:33,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:34,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:34,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:40:34,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:34,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 350 [2020-10-27 22:40:34,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:34,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:40:34,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:34,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:40:34,054 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:34,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:34,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:34,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:34,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:40:34,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:34,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 282 [2020-10-27 22:40:34,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:34,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:40:34,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:34,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:40:34,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:34,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:34,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:34,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:34,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:40:34,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:34,737 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-27 22:40:34,737 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:34,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:40:34,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:34,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:40:34,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:34,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:34,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:34,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:34,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:40:34,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:34,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-27 22:40:34,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:40:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:34,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:40:34,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:35,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:35,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:35,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:35,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:35,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:40:35,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:35,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-27 22:40:35,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:40:35,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:35,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:40:35,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:35,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:35,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:35,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:35,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:40:35,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:35,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 22:40:35,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:40:35,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:35,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:40:35,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-27 22:40:35,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:35,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:35,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:35,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:40:35,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:35,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-27 22:40:35,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:40:35,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:35,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:40:35,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:35,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:35,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:35,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:35,694 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:35,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:40:35,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:35,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 22:40:35,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:35,695 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:40:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:35,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:40:35,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:35,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:35,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:35,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:35,840 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:35,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:40:35,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:35,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 22:40:35,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:35,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:40:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:35,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:40:35,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:35,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:35,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:35,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:35,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:35,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:40:35,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:35,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:40:35,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:35,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:40:35,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:35,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:40:35,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:36,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:36,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:36,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:36,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:40:36,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:36,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:40:36,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:40:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:36,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:40:36,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:36,274 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-10-27 22:40:36,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653735404] [2020-10-27 22:40:36,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:40:36,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42] total 42 [2020-10-27 22:40:36,275 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932090977] [2020-10-27 22:40:36,275 INFO L461 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-10-27 22:40:36,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:40:36,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-10-27 22:40:36,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1641, Unknown=0, NotChecked=0, Total=1722 [2020-10-27 22:40:36,277 INFO L87 Difference]: Start difference. First operand 71 states and 72 transitions. Second operand 42 states. [2020-10-27 22:40:41,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:40:41,433 INFO L93 Difference]: Finished difference Result 79 states and 80 transitions. [2020-10-27 22:40:41,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-10-27 22:40:41,434 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 123 [2020-10-27 22:40:41,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:40:41,436 INFO L225 Difference]: With dead ends: 79 [2020-10-27 22:40:41,436 INFO L226 Difference]: Without dead ends: 74 [2020-10-27 22:40:41,438 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=237, Invalid=6243, Unknown=0, NotChecked=0, Total=6480 [2020-10-27 22:40:41,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-10-27 22:40:41,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-10-27 22:40:41,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-27 22:40:41,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 75 transitions. [2020-10-27 22:40:41,444 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 75 transitions. Word has length 123 [2020-10-27 22:40:41,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:40:41,445 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 75 transitions. [2020-10-27 22:40:41,445 INFO L482 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-10-27 22:40:41,445 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 75 transitions. [2020-10-27 22:40:41,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-27 22:40:41,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:40:41,446 INFO L422 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:40:41,446 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-27 22:40:41,447 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:40:41,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:40:41,447 INFO L82 PathProgramCache]: Analyzing trace with hash 626937743, now seen corresponding path program 19 times [2020-10-27 22:40:41,447 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:40:41,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1666012061] [2020-10-27 22:40:41,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:40:41,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:41,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:43,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:43,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 22:40:43,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:43,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2463 [2020-10-27 22:40:43,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:43,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 42 [2020-10-27 22:40:43,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-27 22:40:43,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-27 22:40:43,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:44,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:40:44,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:44,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:44,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:44,023 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:40:44,023 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:44,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:40:44,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:44,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:40:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:44,024 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:40:44,024 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:44,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:40:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:44,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:46,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:46,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 22:40:46,119 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:46,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2074 [2020-10-27 22:40:46,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:46,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 22:40:46,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:46,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-27 22:40:46,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:46,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:46,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:47,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:47,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 22:40:47,985 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:47,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1802 [2020-10-27 22:40:47,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:47,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 22:40:47,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:47,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-27 22:40:47,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:48,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:48,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:48,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:49,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:49,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 22:40:49,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:49,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1612 [2020-10-27 22:40:49,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 22:40:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:49,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 22:40:49,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:49,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:49,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:49,747 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:51,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:51,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 22:40:51,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:51,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1277 [2020-10-27 22:40:51,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 22:40:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:51,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 22:40:51,013 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:51,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:51,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:52,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:52,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 22:40:52,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:52,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1080 [2020-10-27 22:40:52,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 22:40:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:52,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 22:40:52,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:52,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:52,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:52,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:53,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:53,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 22:40:53,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:53,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 869 [2020-10-27 22:40:53,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:53,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 22:40:53,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:53,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 22:40:53,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:53,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:53,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:53,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:53,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:53,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:40:53,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:53,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 712 [2020-10-27 22:40:53,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:53,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 22:40:53,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:53,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 22:40:53,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:53,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:54,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:54,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:54,588 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:54,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:40:54,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:54,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 576 [2020-10-27 22:40:54,589 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 22:40:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:54,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:40:54,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:54,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:54,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:54,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:55,156 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:55,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:40:55,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:55,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 475 [2020-10-27 22:40:55,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:55,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:40:55,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:55,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:40:55,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:55,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:55,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:55,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:55,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:55,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:40:55,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:55,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-27 22:40:55,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:55,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:40:55,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:55,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:40:55,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:55,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:55,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:55,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:56,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:56,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:40:56,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:56,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 284 [2020-10-27 22:40:56,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:40:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:56,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:40:56,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:56,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:56,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:56,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:56,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:56,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:40:56,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:56,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 211 [2020-10-27 22:40:56,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:56,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:40:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:56,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:40:56,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:56,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:56,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:56,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:56,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:56,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:40:56,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:56,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 149 [2020-10-27 22:40:56,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:56,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:40:56,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:56,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:40:56,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:56,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:56,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:56,806 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:56,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:40:56,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:56,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 104 [2020-10-27 22:40:56,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:56,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:40:56,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:56,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:40:56,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:56,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:56,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:56,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:56,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:40:56,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:56,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-27 22:40:56,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:56,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:40:56,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:56,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:40:56,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:57,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:57,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:57,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:40:57,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:57,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 22:40:57,172 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:57,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:40:57,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:57,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:40:57,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:57,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:57,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:57,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:40:57,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:57,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 22:40:57,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:40:57,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:57,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:40:57,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:57,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:57,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:57,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:40:57,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:40:57,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:40:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:57,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:40:57,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:57,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:57,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:57,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:57,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:40:57,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:57,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:40:57,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:40:57,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:57,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:40:57,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:57,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:40:57,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:40:57,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:40:57,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:40:57,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:40:57,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:40:57,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:40:57,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:40:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:40:57,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:40:57,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:40:57,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:40:57,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1102 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 551 trivial. 0 not checked. [2020-10-27 22:40:57,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1666012061] [2020-10-27 22:40:57,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:40:57,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44] total 44 [2020-10-27 22:40:57,985 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069196513] [2020-10-27 22:40:57,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-10-27 22:40:57,985 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:40:57,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-10-27 22:40:57,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1807, Unknown=0, NotChecked=0, Total=1892 [2020-10-27 22:40:57,986 INFO L87 Difference]: Start difference. First operand 74 states and 75 transitions. Second operand 44 states. [2020-10-27 22:41:03,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:03,630 INFO L93 Difference]: Finished difference Result 82 states and 83 transitions. [2020-10-27 22:41:03,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2020-10-27 22:41:03,631 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 129 [2020-10-27 22:41:03,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:03,632 INFO L225 Difference]: With dead ends: 82 [2020-10-27 22:41:03,633 INFO L226 Difference]: Without dead ends: 77 [2020-10-27 22:41:03,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=249, Invalid=6891, Unknown=0, NotChecked=0, Total=7140 [2020-10-27 22:41:03,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2020-10-27 22:41:03,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2020-10-27 22:41:03,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-10-27 22:41:03,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 78 transitions. [2020-10-27 22:41:03,644 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 78 transitions. Word has length 129 [2020-10-27 22:41:03,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:03,645 INFO L481 AbstractCegarLoop]: Abstraction has 77 states and 78 transitions. [2020-10-27 22:41:03,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-10-27 22:41:03,645 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 78 transitions. [2020-10-27 22:41:03,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-27 22:41:03,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:03,647 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:03,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-27 22:41:03,647 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:03,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:03,648 INFO L82 PathProgramCache]: Analyzing trace with hash 1436396997, now seen corresponding path program 20 times [2020-10-27 22:41:03,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:03,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208745662] [2020-10-27 22:41:03,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:03,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:03,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:06,497 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:06,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 22:41:06,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:06,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2821 [2020-10-27 22:41:06,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:06,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 44 [2020-10-27 22:41:06,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-27 22:41:06,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-27 22:41:06,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:06,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:06,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:06,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:06,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:06,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:06,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:41:06,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:06,580 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:06,580 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:06,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:41:06,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:06,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:09,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:09,140 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:41:09,140 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:09,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2525 [2020-10-27 22:41:09,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 22:41:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:09,141 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-27 22:41:09,141 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:09,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:09,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:09,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:11,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:11,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 22:41:11,345 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:11,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2117 [2020-10-27 22:41:11,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 22:41:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:11,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-27 22:41:11,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:11,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:11,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:11,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:13,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:13,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 22:41:13,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:13,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1770 [2020-10-27 22:41:13,185 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:13,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 22:41:13,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:13,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-27 22:41:13,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:13,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:13,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:14,799 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:14,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 22:41:14,800 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:14,800 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1538 [2020-10-27 22:41:14,800 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:14,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 22:41:14,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:14,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 22:41:14,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:14,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:14,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:16,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:16,164 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 22:41:16,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:16,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1287 [2020-10-27 22:41:16,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 22:41:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:16,165 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 22:41:16,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:16,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:16,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:17,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:17,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 22:41:17,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:17,298 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1049 [2020-10-27 22:41:17,298 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 22:41:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:17,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 22:41:17,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:17,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:17,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:17,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:18,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:18,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 22:41:18,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:18,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 873 [2020-10-27 22:41:18,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 22:41:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:18,257 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 22:41:18,257 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:18,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:18,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:19,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:19,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:41:19,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:19,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 828 [2020-10-27 22:41:19,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:19,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 22:41:19,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:19,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 22:41:19,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:19,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:19,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:19,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:19,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:19,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:41:19,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:19,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 612 [2020-10-27 22:41:19,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:19,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 22:41:19,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:19,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:41:19,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:19,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:20,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:20,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:20,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:20,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:41:20,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:20,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 455 [2020-10-27 22:41:20,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:41:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:20,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:41:20,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:20,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:20,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:20,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:20,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:41:20,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:20,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 359 [2020-10-27 22:41:20,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:20,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:41:20,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:20,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:41:20,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:21,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:21,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:21,308 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:21,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:41:21,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:21,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-27 22:41:21,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:21,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:41:21,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:21,309 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:41:21,309 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:21,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:21,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:21,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:21,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:21,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:41:21,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:21,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-27 22:41:21,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:41:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:21,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:41:21,638 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:21,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:21,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:21,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:21,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:21,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:41:21,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:21,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-27 22:41:21,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:21,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:41:21,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:21,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:41:21,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:22,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:22,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:22,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:22,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:22,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:41:22,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:22,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-27 22:41:22,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:22,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:41:22,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:22,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:41:22,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:22,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:22,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:22,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:22,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:22,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:41:22,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:22,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-27 22:41:22,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:22,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:41:22,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:22,329 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:41:22,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:22,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:22,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:22,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:22,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:41:22,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:22,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 22:41:22,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:22,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:41:22,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:22,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:41:22,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:22,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:22,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:22,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:22,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:22,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:41:22,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:22,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:41:22,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:22,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:41:22,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:22,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:41:22,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:22,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:22,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:22,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:22,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:41:22,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:22,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:41:22,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:41:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:22,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:41:22,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:22,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:22,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:22,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:22,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:22,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:41:22,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:22,996 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:41:22,996 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:22,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:41:22,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:22,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:41:22,997 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:23,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:23,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:23,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:23,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:23,155 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:41:23,155 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:23,155 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:41:23,155 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:23,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:41:23,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:23,156 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:41:23,156 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:23,340 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-10-27 22:41:23,340 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208745662] [2020-10-27 22:41:23,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:23,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2020-10-27 22:41:23,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957081991] [2020-10-27 22:41:23,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 46 states [2020-10-27 22:41:23,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:23,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2020-10-27 22:41:23,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=1981, Unknown=0, NotChecked=0, Total=2070 [2020-10-27 22:41:23,343 INFO L87 Difference]: Start difference. First operand 77 states and 78 transitions. Second operand 46 states. [2020-10-27 22:41:29,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:29,363 INFO L93 Difference]: Finished difference Result 85 states and 86 transitions. [2020-10-27 22:41:29,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-10-27 22:41:29,363 INFO L78 Accepts]: Start accepts. Automaton has 46 states. Word has length 135 [2020-10-27 22:41:29,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:29,365 INFO L225 Difference]: With dead ends: 85 [2020-10-27 22:41:29,366 INFO L226 Difference]: Without dead ends: 80 [2020-10-27 22:41:29,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 903 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=261, Invalid=7571, Unknown=0, NotChecked=0, Total=7832 [2020-10-27 22:41:29,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-27 22:41:29,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-27 22:41:29,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-27 22:41:29,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2020-10-27 22:41:29,373 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 135 [2020-10-27 22:41:29,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:29,373 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2020-10-27 22:41:29,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 46 states. [2020-10-27 22:41:29,374 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2020-10-27 22:41:29,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-27 22:41:29,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:29,375 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:29,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-27 22:41:29,376 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:29,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:29,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1444475249, now seen corresponding path program 21 times [2020-10-27 22:41:29,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:29,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [270784919] [2020-10-27 22:41:29,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:29,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:29,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:32,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:32,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-10-27 22:41:32,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:32,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3204 [2020-10-27 22:41:32,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 46 [2020-10-27 22:41:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-10-27 22:41:32,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-27 22:41:32,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:32,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:41:32,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:32,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:32,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:32,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:41:32,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:41:32,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:41:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:32,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:41:32,700 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:32,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:41:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:32,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:35,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:35,776 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 22:41:35,776 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:35,776 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3051 [2020-10-27 22:41:35,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 22:41:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:35,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-27 22:41:35,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:35,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:35,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:35,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:38,256 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:38,256 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:41:38,256 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:38,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2412 [2020-10-27 22:41:38,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:38,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 22:41:38,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:38,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-27 22:41:38,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:38,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:38,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:40,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:40,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 22:41:40,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:40,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2111 [2020-10-27 22:41:40,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:40,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 22:41:40,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:40,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-27 22:41:40,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:40,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:40,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:42,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:42,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 22:41:42,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:42,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1792 [2020-10-27 22:41:42,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:42,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 22:41:42,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:42,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-27 22:41:42,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:42,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:42,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:43,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:43,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 22:41:43,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:43,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1501 [2020-10-27 22:41:43,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 22:41:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:43,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 22:41:43,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:43,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:43,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:45,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:45,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 22:41:45,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:45,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1262 [2020-10-27 22:41:45,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:45,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 22:41:45,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:45,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 22:41:45,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:45,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:45,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:45,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:46,338 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:46,338 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 22:41:46,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:46,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1021 [2020-10-27 22:41:46,338 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:46,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 22:41:46,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:46,339 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 22:41:46,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:46,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:46,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:46,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:47,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:47,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 22:41:47,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:47,293 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 863 [2020-10-27 22:41:47,293 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:47,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 22:41:47,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:47,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 22:41:47,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:47,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:47,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:47,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:48,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:48,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:41:48,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:48,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 702 [2020-10-27 22:41:48,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:48,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 22:41:48,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:48,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 22:41:48,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:48,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:48,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:48,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:48,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:48,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:41:48,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:48,770 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 575 [2020-10-27 22:41:48,770 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:48,770 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 22:41:48,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:48,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:41:48,771 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:48,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:48,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:49,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:49,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:41:49,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:49,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 451 [2020-10-27 22:41:49,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:41:49,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:49,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:41:49,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:49,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:49,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:49,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:49,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:49,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:41:49,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:49,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 364 [2020-10-27 22:41:49,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:49,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:41:49,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:49,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:41:49,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:49,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:49,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:49,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:50,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:50,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:41:50,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:50,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 274 [2020-10-27 22:41:50,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:50,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:41:50,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:50,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:41:50,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:50,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:50,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:50,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:50,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:41:50,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:50,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-27 22:41:50,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:41:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:50,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:41:50,549 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:50,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:50,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:50,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:50,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:41:50,808 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:50,808 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 145 [2020-10-27 22:41:50,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:41:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:41:50,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:50,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:50,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:50,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:51,043 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:51,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:41:51,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:51,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-27 22:41:51,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:51,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:41:51,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:51,044 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:41:51,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:51,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:51,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:51,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:51,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:41:51,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:51,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 76 [2020-10-27 22:41:51,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:51,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:41:51,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:51,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:41:51,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:51,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:51,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:51,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:51,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:41:51,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:51,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 22:41:51,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:41:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:51,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:41:51,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:51,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:51,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:51,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:51,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:51,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:41:51,636 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:51,636 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-27 22:41:51,636 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:41:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:51,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:41:51,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:51,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:51,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:51,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:51,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:51,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:41:51,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:51,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 22:41:51,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:51,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:41:51,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:51,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:41:51,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:51,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:51,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:51,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:51,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:51,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:41:51,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:51,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 22:41:51,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:41:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:51,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:41:51,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:52,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:41:52,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:52,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:41:52,146 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:41:52,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:41:52,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:41:52,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-27 22:41:52,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:41:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:41:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:41:52,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:41:52,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:41:52,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2020-10-27 22:41:52,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [270784919] [2020-10-27 22:41:52,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:41:52,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2020-10-27 22:41:52,351 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159188124] [2020-10-27 22:41:52,351 INFO L461 AbstractCegarLoop]: Interpolant automaton has 48 states [2020-10-27 22:41:52,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:41:52,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2020-10-27 22:41:52,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=2163, Unknown=0, NotChecked=0, Total=2256 [2020-10-27 22:41:52,352 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand 48 states. [2020-10-27 22:41:58,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:41:58,889 INFO L93 Difference]: Finished difference Result 88 states and 89 transitions. [2020-10-27 22:41:58,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-10-27 22:41:58,893 INFO L78 Accepts]: Start accepts. Automaton has 48 states. Word has length 141 [2020-10-27 22:41:58,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:41:58,894 INFO L225 Difference]: With dead ends: 88 [2020-10-27 22:41:58,894 INFO L226 Difference]: Without dead ends: 83 [2020-10-27 22:41:58,895 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 [2020-10-27 22:41:58,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-10-27 22:41:58,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2020-10-27 22:41:58,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-27 22:41:58,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 84 transitions. [2020-10-27 22:41:58,903 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 84 transitions. Word has length 141 [2020-10-27 22:41:58,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:41:58,904 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 84 transitions. [2020-10-27 22:41:58,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 48 states. [2020-10-27 22:41:58,904 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 84 transitions. [2020-10-27 22:41:58,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-10-27 22:41:58,905 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:41:58,905 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:41:58,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-27 22:41:58,906 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:41:58,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:41:58,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1489069125, now seen corresponding path program 22 times [2020-10-27 22:41:58,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:41:58,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [292679958] [2020-10-27 22:41:58,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:41:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:41:58,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:02,652 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:02,652 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-27 22:42:02,652 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3701 [2020-10-27 22:42:02,652 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 48 [2020-10-27 22:42:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-27 22:42:02,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-27 22:42:02,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:02,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 22:42:02,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:02,732 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:02,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:02,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 22:42:02,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:02,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:42:02,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 22:42:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:02,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 22:42:02,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:02,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-10-27 22:42:02,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:02,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:05,991 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:05,992 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 185 [2020-10-27 22:42:05,992 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:05,992 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3230 [2020-10-27 22:42:05,992 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:05,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 47 [2020-10-27 22:42:05,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:05,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-27 22:42:05,992 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:06,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:06,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:08,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:08,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-27 22:42:08,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:08,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2826 [2020-10-27 22:42:08,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:08,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 45 [2020-10-27 22:42:08,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:08,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-27 22:42:08,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:08,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:08,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:11,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:11,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 169 [2020-10-27 22:42:11,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:11,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2448 [2020-10-27 22:42:11,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:11,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 43 [2020-10-27 22:42:11,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:11,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 165 [2020-10-27 22:42:11,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:11,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:11,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:13,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:13,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 161 [2020-10-27 22:42:13,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:13,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2047 [2020-10-27 22:42:13,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 41 [2020-10-27 22:42:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:13,541 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 157 [2020-10-27 22:42:13,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:13,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:13,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:15,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:15,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 22:42:15,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:15,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1788 [2020-10-27 22:42:15,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 39 [2020-10-27 22:42:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:15,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 149 [2020-10-27 22:42:15,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:15,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:15,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:15,514 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:16,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:16,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-27 22:42:16,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:16,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1481 [2020-10-27 22:42:16,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:16,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 37 [2020-10-27 22:42:16,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:16,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-27 22:42:16,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:17,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:17,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:18,345 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:18,345 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-27 22:42:18,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:18,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1273 [2020-10-27 22:42:18,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 35 [2020-10-27 22:42:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:18,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-27 22:42:18,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:18,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:18,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:18,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:19,502 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:19,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-27 22:42:19,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:19,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1064 [2020-10-27 22:42:19,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:19,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 33 [2020-10-27 22:42:19,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:19,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 125 [2020-10-27 22:42:19,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:19,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:19,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:20,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:20,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-10-27 22:42:20,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:20,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 862 [2020-10-27 22:42:20,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:20,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 31 [2020-10-27 22:42:20,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:20,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 117 [2020-10-27 22:42:20,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:20,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:20,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:21,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:21,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-27 22:42:21,271 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:21,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 704 [2020-10-27 22:42:21,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:21,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-27 22:42:21,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:21,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-10-27 22:42:21,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:21,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:21,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:21,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:21,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:21,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-27 22:42:21,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:21,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 564 [2020-10-27 22:42:21,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-27 22:42:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:21,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-27 22:42:21,944 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:22,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:22,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:22,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:22,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-27 22:42:22,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:22,517 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 461 [2020-10-27 22:42:22,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:22,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-27 22:42:22,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:22,518 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-10-27 22:42:22,518 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:22,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:22,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:22,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:22,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-27 22:42:22,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:22,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 340 [2020-10-27 22:42:22,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:22,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-27 22:42:22,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:22,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-10-27 22:42:22,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:23,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:23,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:23,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:23,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-27 22:42:23,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:23,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 268 [2020-10-27 22:42:23,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-27 22:42:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:23,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-27 22:42:23,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:23,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:23,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:23,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:23,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:23,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-27 22:42:23,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 191 [2020-10-27 22:42:23,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-27 22:42:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:23,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-27 22:42:23,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:23,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:23,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:23,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:23,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:23,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 65 [2020-10-27 22:42:23,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:23,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-27 22:42:23,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:23,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-27 22:42:23,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:23,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-27 22:42:23,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:24,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:24,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:24,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:24,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:24,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 57 [2020-10-27 22:42:24,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:24,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 97 [2020-10-27 22:42:24,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:24,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-27 22:42:24,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:24,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 22:42:24,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:24,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:24,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:24,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:24,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-27 22:42:24,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:24,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-27 22:42:24,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:24,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-27 22:42:24,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:24,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-27 22:42:24,396 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:24,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:24,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:24,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:24,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:24,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-27 22:42:24,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:24,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-27 22:42:24,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:24,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-27 22:42:24,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:24,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-27 22:42:24,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:24,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:24,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:24,743 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:24,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:24,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-27 22:42:24,769 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:24,769 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 22:42:24,769 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:24,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-27 22:42:24,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:24,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-27 22:42:24,770 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:24,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:24,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:24,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:24,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:24,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 25 [2020-10-27 22:42:24,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:24,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 22:42:24,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:24,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-27 22:42:24,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:24,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 22:42:24,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:25,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:25,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:25,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:25,121 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-27 22:42:25,121 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:25,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 22:42:25,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:25,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-27 22:42:25,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:25,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-27 22:42:25,122 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:25,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-27 22:42:25,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:25,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 22:42:25,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 22:42:25,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 22:42:25,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 22:42:25,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 22:42:25,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 22:42:25,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-27 22:42:25,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 22:42:25,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 22:42:25,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 22:42:25,528 INFO L134 CoverageAnalysis]: Checked inductivity of 1474 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 737 trivial. 0 not checked. [2020-10-27 22:42:25,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [292679958] [2020-10-27 22:42:25,529 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 22:42:25,529 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50] total 50 [2020-10-27 22:42:25,529 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134827811] [2020-10-27 22:42:25,530 INFO L461 AbstractCegarLoop]: Interpolant automaton has 50 states [2020-10-27 22:42:25,530 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 22:42:25,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2020-10-27 22:42:25,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=2353, Unknown=0, NotChecked=0, Total=2450 [2020-10-27 22:42:25,531 INFO L87 Difference]: Start difference. First operand 83 states and 84 transitions. Second operand 50 states. [2020-10-27 22:42:32,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 22:42:32,573 INFO L93 Difference]: Finished difference Result 91 states and 92 transitions. [2020-10-27 22:42:32,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-10-27 22:42:32,573 INFO L78 Accepts]: Start accepts. Automaton has 50 states. Word has length 147 [2020-10-27 22:42:32,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 22:42:32,575 INFO L225 Difference]: With dead ends: 91 [2020-10-27 22:42:32,575 INFO L226 Difference]: Without dead ends: 86 [2020-10-27 22:42:32,577 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1081 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=285, Invalid=9027, Unknown=0, NotChecked=0, Total=9312 [2020-10-27 22:42:32,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-10-27 22:42:32,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2020-10-27 22:42:32,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2020-10-27 22:42:32,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 87 transitions. [2020-10-27 22:42:32,582 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 87 transitions. Word has length 147 [2020-10-27 22:42:32,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 22:42:32,582 INFO L481 AbstractCegarLoop]: Abstraction has 86 states and 87 transitions. [2020-10-27 22:42:32,582 INFO L482 AbstractCegarLoop]: Interpolant automaton has 50 states. [2020-10-27 22:42:32,583 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 87 transitions. [2020-10-27 22:42:32,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-27 22:42:32,583 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 22:42:32,584 INFO L422 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 22:42:32,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-27 22:42:32,584 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 22:42:32,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 22:42:32,584 INFO L82 PathProgramCache]: Analyzing trace with hash 555515279, now seen corresponding path program 23 times [2020-10-27 22:42:32,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 22:42:32,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [158548046] [2020-10-27 22:42:32,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 22:42:32,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 22:42:32,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking...