/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --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/array-examples/standard_two_index_02.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 03:46:41,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 03:46:41,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 03:46:41,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 03:46:41,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 03:46:41,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 03:46:41,814 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 03:46:41,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 03:46:41,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 03:46:41,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 03:46:41,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 03:46:41,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 03:46:41,842 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 03:46:41,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 03:46:41,847 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 03:46:41,849 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 03:46:41,850 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 03:46:41,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 03:46:41,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 03:46:41,867 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 03:46:41,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 03:46:41,871 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 03:46:41,872 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 03:46:41,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 03:46:41,883 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 03:46:41,883 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 03:46:41,884 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 03:46:41,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 03:46:41,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 03:46:41,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 03:46:41,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 03:46:41,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 03:46:41,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 03:46:41,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 03:46:41,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 03:46:41,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 03:46:41,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 03:46:41,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 03:46:41,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 03:46:41,896 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 03:46:41,897 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 03:46:41,904 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 [2020-10-29 03:46:41,950 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 03:46:41,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 03:46:41,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 03:46:41,955 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 03:46:41,956 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 03:46:41,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 03:46:41,956 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 03:46:41,956 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 03:46:41,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 03:46:41,957 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 03:46:41,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 03:46:41,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 03:46:41,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 03:46:41,958 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 03:46:41,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 03:46:41,959 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 03:46:41,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 03:46:41,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 03:46:41,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 03:46:41,960 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 03:46:41,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 03:46:41,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 03:46:41,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 03:46:41,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 03:46:41,961 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 03:46:41,961 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 03:46:41,961 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 03:46:41,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 03:46:41,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 03:46:41,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 03:46:42,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 03:46:42,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 03:46:42,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 03:46:42,409 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 03:46:42,409 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 03:46:42,410 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_two_index_02.i [2020-10-29 03:46:42,485 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97436d1b6/a8e05e40737c412995cdedd379995027/FLAG4ac0bf7b6 [2020-10-29 03:46:43,155 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 03:46:43,156 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/array-examples/standard_two_index_02.i [2020-10-29 03:46:43,164 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97436d1b6/a8e05e40737c412995cdedd379995027/FLAG4ac0bf7b6 [2020-10-29 03:46:43,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/97436d1b6/a8e05e40737c412995cdedd379995027 [2020-10-29 03:46:43,537 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 03:46:43,544 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 03:46:43,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 03:46:43,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 03:46:43,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 03:46:43,553 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:46:43" (1/1) ... [2020-10-29 03:46:43,558 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11dc8f0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:46:43, skipping insertion in model container [2020-10-29 03:46:43,558 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 03:46:43" (1/1) ... [2020-10-29 03:46:43,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 03:46:43,588 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 03:46:43,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:46:43,806 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 03:46:43,828 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 03:46:43,844 INFO L208 MainTranslator]: Completed translation [2020-10-29 03:46:43,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:46:43 WrapperNode [2020-10-29 03:46:43,845 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 03:46:43,846 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 03:46:43,846 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 03:46:43,846 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 03:46:43,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:46:43" (1/1) ... [2020-10-29 03:46:43,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:46:43" (1/1) ... [2020-10-29 03:46:43,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:46:43" (1/1) ... [2020-10-29 03:46:43,867 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:46:43" (1/1) ... [2020-10-29 03:46:43,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:46:43" (1/1) ... [2020-10-29 03:46:43,878 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:46:43" (1/1) ... [2020-10-29 03:46:43,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:46:43" (1/1) ... [2020-10-29 03:46:43,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 03:46:43,883 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 03:46:43,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 03:46:43,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 03:46:43,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:46:43" (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 [2020-10-29 03:46:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 03:46:43,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 03:46:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 03:46:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-29 03:46:43,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 03:46:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 03:46:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 03:46:43,965 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-29 03:46:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-29 03:46:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 03:46:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 03:46:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-29 03:46:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 03:46:43,966 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 03:46:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 03:46:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 03:46:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 03:46:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 03:46:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 03:46:43,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 03:46:44,210 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 03:46:44,210 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-29 03:46:44,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:46:44 BoogieIcfgContainer [2020-10-29 03:46:44,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 03:46:44,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 03:46:44,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 03:46:44,218 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 03:46:44,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 03:46:43" (1/3) ... [2020-10-29 03:46:44,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db83faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:46:44, skipping insertion in model container [2020-10-29 03:46:44,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 03:46:43" (2/3) ... [2020-10-29 03:46:44,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db83faa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 03:46:44, skipping insertion in model container [2020-10-29 03:46:44,219 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 03:46:44" (3/3) ... [2020-10-29 03:46:44,221 INFO L111 eAbstractionObserver]: Analyzing ICFG standard_two_index_02.i [2020-10-29 03:46:44,233 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 03:46:44,238 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 03:46:44,251 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 03:46:44,323 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 03:46:44,324 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 03:46:44,324 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 03:46:44,324 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 03:46:44,324 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 03:46:44,324 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 03:46:44,325 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 03:46:44,325 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 03:46:44,342 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-10-29 03:46:44,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-29 03:46:44,348 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:44,348 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:44,349 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:44,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:44,355 INFO L82 PathProgramCache]: Analyzing trace with hash 1774182118, now seen corresponding path program 1 times [2020-10-29 03:46:44,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:44,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1987027759] [2020-10-29 03:46:44,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:44,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:44,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:44,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:44,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-29 03:46:44,872 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:46:44,872 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 317 [2020-10-29 03:46:44,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:44,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:44,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:46:44,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:46:44,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 03:46:44,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 03:46:45,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:45,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:45,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:45,045 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:45,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:45,046 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:45,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 03:46:45,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:45,046 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:45,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:45,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:46:45,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:46:45,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1987027759] [2020-10-29 03:46:45,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 03:46:45,072 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-29 03:46:45,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120214469] [2020-10-29 03:46:45,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 03:46:45,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:45,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 03:46:45,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 03:46:45,105 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 4 states. [2020-10-29 03:46:45,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:45,215 INFO L93 Difference]: Finished difference Result 49 states and 65 transitions. [2020-10-29 03:46:45,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-29 03:46:45,217 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-10-29 03:46:45,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:45,225 INFO L225 Difference]: With dead ends: 49 [2020-10-29 03:46:45,225 INFO L226 Difference]: Without dead ends: 22 [2020-10-29 03:46:45,228 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 03:46:45,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-10-29 03:46:45,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-10-29 03:46:45,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-29 03:46:45,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2020-10-29 03:46:45,269 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 17 [2020-10-29 03:46:45,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:45,269 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2020-10-29 03:46:45,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 03:46:45,269 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2020-10-29 03:46:45,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-29 03:46:45,270 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:45,270 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:45,271 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 03:46:45,271 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:45,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:45,272 INFO L82 PathProgramCache]: Analyzing trace with hash -577359468, now seen corresponding path program 1 times [2020-10-29 03:46:45,272 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:45,272 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [107656523] [2020-10-29 03:46:45,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:45,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:45,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:45,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:45,508 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-29 03:46:45,508 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:46:45,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-29 03:46:45,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:45,509 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 03:46:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:46:45,509 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 03:46:45,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:46:45,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:45,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:45,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:45,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:45,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:45,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:45,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 03:46:45,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:45,570 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:45,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:45,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:46:45,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 03:46:45,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [107656523] [2020-10-29 03:46:45,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:45,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 03:46:45,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264994705] [2020-10-29 03:46:45,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 03:46:45,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:45,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 03:46:45,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:46:45,587 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 5 states. [2020-10-29 03:46:45,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:45,716 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2020-10-29 03:46:45,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 03:46:45,717 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-10-29 03:46:45,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:45,719 INFO L225 Difference]: With dead ends: 41 [2020-10-29 03:46:45,720 INFO L226 Difference]: Without dead ends: 27 [2020-10-29 03:46:45,721 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:46:45,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-10-29 03:46:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 24. [2020-10-29 03:46:45,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-29 03:46:45,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2020-10-29 03:46:45,740 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 18 [2020-10-29 03:46:45,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:45,741 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2020-10-29 03:46:45,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 03:46:45,741 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2020-10-29 03:46:45,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-29 03:46:45,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:45,743 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:45,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 03:46:45,743 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:45,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:45,744 INFO L82 PathProgramCache]: Analyzing trace with hash -446889165, now seen corresponding path program 1 times [2020-10-29 03:46:45,744 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:45,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [328678177] [2020-10-29 03:46:45,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:45,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:45,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:45,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:45,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:46,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:46,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 03:46:46,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:46:46,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 744 [2020-10-29 03:46:46,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:46,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 03:46:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:46:46,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 03:46:46,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:46,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:46,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:46,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:46,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:46,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:46,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:46:46,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:46,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:46,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:46,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:46,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:46:46,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [328678177] [2020-10-29 03:46:46,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:46,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 03:46:46,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939289194] [2020-10-29 03:46:46,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 03:46:46,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:46,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 03:46:46,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:46:46,813 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand 10 states. [2020-10-29 03:46:47,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:47,137 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2020-10-29 03:46:47,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 03:46:47,138 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 20 [2020-10-29 03:46:47,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:47,139 INFO L225 Difference]: With dead ends: 40 [2020-10-29 03:46:47,139 INFO L226 Difference]: Without dead ends: 36 [2020-10-29 03:46:47,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2020-10-29 03:46:47,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-10-29 03:46:47,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2020-10-29 03:46:47,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-10-29 03:46:47,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 35 transitions. [2020-10-29 03:46:47,149 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 35 transitions. Word has length 20 [2020-10-29 03:46:47,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:47,149 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 35 transitions. [2020-10-29 03:46:47,150 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 03:46:47,150 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 35 transitions. [2020-10-29 03:46:47,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-29 03:46:47,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:47,151 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:47,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 03:46:47,151 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:47,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:47,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1420739774, now seen corresponding path program 2 times [2020-10-29 03:46:47,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:47,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645346011] [2020-10-29 03:46:47,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:47,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:47,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:47,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:47,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:47,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-29 03:46:47,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:46:47,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 791 [2020-10-29 03:46:47,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:47,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 03:46:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:46:47,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 03:46:47,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:48,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:48,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:48,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:48,155 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:48,156 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:48,156 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:48,156 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:46:48,156 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:48,156 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:48,157 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:48,157 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:48,162 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:46:48,163 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645346011] [2020-10-29 03:46:48,163 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:48,163 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 03:46:48,163 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008747128] [2020-10-29 03:46:48,164 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 03:46:48,164 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:48,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 03:46:48,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2020-10-29 03:46:48,165 INFO L87 Difference]: Start difference. First operand 32 states and 35 transitions. Second operand 11 states. [2020-10-29 03:46:48,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:48,465 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2020-10-29 03:46:48,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 03:46:48,466 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 21 [2020-10-29 03:46:48,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:48,468 INFO L225 Difference]: With dead ends: 48 [2020-10-29 03:46:48,468 INFO L226 Difference]: Without dead ends: 44 [2020-10-29 03:46:48,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:46:48,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-29 03:46:48,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 33. [2020-10-29 03:46:48,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-10-29 03:46:48,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2020-10-29 03:46:48,478 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 21 [2020-10-29 03:46:48,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:48,479 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2020-10-29 03:46:48,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 03:46:48,479 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2020-10-29 03:46:48,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-29 03:46:48,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:48,480 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:48,480 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 03:46:48,480 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:48,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:48,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1545337581, now seen corresponding path program 3 times [2020-10-29 03:46:48,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:48,481 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [731156630] [2020-10-29 03:46:48,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:48,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:48,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:48,635 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:49,296 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:49,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 03:46:49,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:46:49,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 801 [2020-10-29 03:46:49,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:49,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 03:46:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:46:49,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 03:46:49,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:49,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:49,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:49,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:49,616 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:49,617 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:49,617 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:49,617 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:46:49,617 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:49,617 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:49,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:49,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:49,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:49,618 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:49,623 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:46:49,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [731156630] [2020-10-29 03:46:49,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:49,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:46:49,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675380926] [2020-10-29 03:46:49,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:46:49,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:49,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:46:49,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:46:49,628 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand 12 states. [2020-10-29 03:46:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:49,964 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2020-10-29 03:46:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 03:46:49,965 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 22 [2020-10-29 03:46:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:49,966 INFO L225 Difference]: With dead ends: 53 [2020-10-29 03:46:49,966 INFO L226 Difference]: Without dead ends: 49 [2020-10-29 03:46:49,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:46:49,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2020-10-29 03:46:49,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 34. [2020-10-29 03:46:49,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-29 03:46:49,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 39 transitions. [2020-10-29 03:46:49,976 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 39 transitions. Word has length 22 [2020-10-29 03:46:49,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:49,976 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 39 transitions. [2020-10-29 03:46:49,976 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:46:49,977 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 39 transitions. [2020-10-29 03:46:49,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-10-29 03:46:49,978 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:49,978 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:49,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 03:46:49,978 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:49,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:49,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1112902302, now seen corresponding path program 4 times [2020-10-29 03:46:49,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:49,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861191845] [2020-10-29 03:46:49,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:49,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:49,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:50,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:50,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:50,908 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:50,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 03:46:50,909 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:46:50,909 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 917 [2020-10-29 03:46:50,909 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:50,909 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:50,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 03:46:50,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:46:50,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 03:46:50,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:51,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:51,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:51,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:51,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:51,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:51,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:51,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 03:46:51,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:51,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:51,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:51,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:51,235 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:46:51,236 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [861191845] [2020-10-29 03:46:51,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:51,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 03:46:51,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489124614] [2020-10-29 03:46:51,238 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 03:46:51,238 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:51,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 03:46:51,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2020-10-29 03:46:51,239 INFO L87 Difference]: Start difference. First operand 34 states and 39 transitions. Second operand 13 states. [2020-10-29 03:46:51,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:51,591 INFO L93 Difference]: Finished difference Result 49 states and 55 transitions. [2020-10-29 03:46:51,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 03:46:51,592 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 23 [2020-10-29 03:46:51,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:51,593 INFO L225 Difference]: With dead ends: 49 [2020-10-29 03:46:51,593 INFO L226 Difference]: Without dead ends: 45 [2020-10-29 03:46:51,593 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=247, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:46:51,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-10-29 03:46:51,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 30. [2020-10-29 03:46:51,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-29 03:46:51,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2020-10-29 03:46:51,606 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 23 [2020-10-29 03:46:51,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:51,607 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2020-10-29 03:46:51,607 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 03:46:51,607 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2020-10-29 03:46:51,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-10-29 03:46:51,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:51,609 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:51,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 03:46:51,609 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:51,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:51,609 INFO L82 PathProgramCache]: Analyzing trace with hash 791061505, now seen corresponding path program 1 times [2020-10-29 03:46:51,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:51,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1134642965] [2020-10-29 03:46:51,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:51,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:51,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:51,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:51,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-29 03:46:51,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:46:51,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 258 [2020-10-29 03:46:51,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:51,885 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:51,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-10-29 03:46:51,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-29 03:46:51,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 03:46:51,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:51,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:51,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:51,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:51,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:51,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:51,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:46:51,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:51,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:51,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:51,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:51,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:46:51,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2020-10-29 03:46:51,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:51,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:51,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:51,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:46:51,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:51,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:46:51,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:51,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:46:51,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:51,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:51,943 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-29 03:46:51,944 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1134642965] [2020-10-29 03:46:51,944 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:51,944 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 03:46:51,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912312483] [2020-10-29 03:46:51,945 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 03:46:51,945 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:51,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 03:46:51,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:46:51,947 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand 5 states. [2020-10-29 03:46:52,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:52,030 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2020-10-29 03:46:52,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 03:46:52,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-10-29 03:46:52,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:52,032 INFO L225 Difference]: With dead ends: 53 [2020-10-29 03:46:52,032 INFO L226 Difference]: Without dead ends: 35 [2020-10-29 03:46:52,032 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 03:46:52,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2020-10-29 03:46:52,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2020-10-29 03:46:52,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-29 03:46:52,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2020-10-29 03:46:52,043 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 27 [2020-10-29 03:46:52,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:52,044 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2020-10-29 03:46:52,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 03:46:52,046 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2020-10-29 03:46:52,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-10-29 03:46:52,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:52,047 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:52,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 03:46:52,047 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:52,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:52,048 INFO L82 PathProgramCache]: Analyzing trace with hash -424342254, now seen corresponding path program 2 times [2020-10-29 03:46:52,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:52,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704630847] [2020-10-29 03:46:52,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:52,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:52,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:52,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:52,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:52,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 40 [2020-10-29 03:46:52,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:46:52,890 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 824 [2020-10-29 03:46:52,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:52,891 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 03:46:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:46:52,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 03:46:52,891 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:53,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:53,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:53,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:53,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:53,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:53,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:46:53,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:53,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:53,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:53,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:53,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:46:53,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 03:46:53,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:53,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:53,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:53,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:46:53,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:53,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 03:46:53,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:53,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:46:53,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:53,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:46:53,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:46:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:46:53,167 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704630847] [2020-10-29 03:46:53,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:53,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:46:53,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823415853] [2020-10-29 03:46:53,168 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:46:53,168 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:53,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:46:53,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:46:53,169 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. Second operand 12 states. [2020-10-29 03:46:53,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:53,553 INFO L93 Difference]: Finished difference Result 50 states and 55 transitions. [2020-10-29 03:46:53,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 03:46:53,554 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2020-10-29 03:46:53,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:53,557 INFO L225 Difference]: With dead ends: 50 [2020-10-29 03:46:53,557 INFO L226 Difference]: Without dead ends: 46 [2020-10-29 03:46:53,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:46:53,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-29 03:46:53,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 42. [2020-10-29 03:46:53,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-10-29 03:46:53,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2020-10-29 03:46:53,574 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 28 [2020-10-29 03:46:53,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:53,574 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2020-10-29 03:46:53,575 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:46:53,575 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2020-10-29 03:46:53,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-10-29 03:46:53,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:53,582 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:53,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 03:46:53,583 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:53,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:53,583 INFO L82 PathProgramCache]: Analyzing trace with hash 552846881, now seen corresponding path program 3 times [2020-10-29 03:46:53,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:53,585 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [398218716] [2020-10-29 03:46:53,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:53,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:53,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:53,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:53,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:54,516 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:54,516 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 41 [2020-10-29 03:46:54,516 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:46:54,516 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 917 [2020-10-29 03:46:54,517 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:54,517 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 03:46:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:46:54,517 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-29 03:46:54,517 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:54,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:54,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:54,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:54,710 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:54,710 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:54,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:54,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:46:54,711 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:54,711 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:54,711 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:54,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:54,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:54,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 03:46:54,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:54,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:54,719 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:54,719 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:46:54,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:54,720 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:46:54,720 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:54,720 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:46:54,720 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:54,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:46:54,721 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:54,726 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:46:54,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [398218716] [2020-10-29 03:46:54,726 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:54,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 03:46:54,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371358945] [2020-10-29 03:46:54,728 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 03:46:54,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:54,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 03:46:54,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-29 03:46:54,734 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand 13 states. [2020-10-29 03:46:55,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:55,134 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2020-10-29 03:46:55,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:46:55,135 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 29 [2020-10-29 03:46:55,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:55,137 INFO L225 Difference]: With dead ends: 64 [2020-10-29 03:46:55,137 INFO L226 Difference]: Without dead ends: 60 [2020-10-29 03:46:55,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2020-10-29 03:46:55,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-10-29 03:46:55,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 43. [2020-10-29 03:46:55,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-10-29 03:46:55,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 48 transitions. [2020-10-29 03:46:55,156 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 48 transitions. Word has length 29 [2020-10-29 03:46:55,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:55,156 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 48 transitions. [2020-10-29 03:46:55,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 03:46:55,156 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 48 transitions. [2020-10-29 03:46:55,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-10-29 03:46:55,158 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:55,159 INFO L422 BasicCegarLoop]: trace histogram [4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:55,159 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 03:46:55,159 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:55,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:55,159 INFO L82 PathProgramCache]: Analyzing trace with hash 780938994, now seen corresponding path program 4 times [2020-10-29 03:46:55,160 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:55,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1744000586] [2020-10-29 03:46:55,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:55,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:55,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:55,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:55,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:56,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:56,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 03:46:56,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:46:56,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1029 [2020-10-29 03:46:56,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:56,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:56,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 03:46:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:46:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 03:46:56,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:46:56,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:56,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:56,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:56,446 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:56,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:56,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:56,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:46:56,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:56,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:56,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:56,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:56,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 03:46:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:56,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:56,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:56,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:46:56,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:56,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:46:56,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:56,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:56,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:46:56,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:56,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:46:56,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:56,482 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-29 03:46:56,482 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1744000586] [2020-10-29 03:46:56,482 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:56,483 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 03:46:56,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094368959] [2020-10-29 03:46:56,483 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 03:46:56,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:56,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 03:46:56,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:46:56,485 INFO L87 Difference]: Start difference. First operand 43 states and 48 transitions. Second operand 14 states. [2020-10-29 03:46:56,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:56,909 INFO L93 Difference]: Finished difference Result 55 states and 60 transitions. [2020-10-29 03:46:56,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:46:56,913 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 30 [2020-10-29 03:46:56,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:56,914 INFO L225 Difference]: With dead ends: 55 [2020-10-29 03:46:56,914 INFO L226 Difference]: Without dead ends: 51 [2020-10-29 03:46:56,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:46:56,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-10-29 03:46:56,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 38. [2020-10-29 03:46:56,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-10-29 03:46:56,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2020-10-29 03:46:56,933 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 30 [2020-10-29 03:46:56,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:56,933 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2020-10-29 03:46:56,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 03:46:56,933 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2020-10-29 03:46:56,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-10-29 03:46:56,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:56,937 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:56,937 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 03:46:56,938 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:56,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:56,938 INFO L82 PathProgramCache]: Analyzing trace with hash -494366398, now seen corresponding path program 5 times [2020-10-29 03:46:56,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:56,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [763331642] [2020-10-29 03:46:56,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:56,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:56,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:56,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:57,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:57,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 49 [2020-10-29 03:46:57,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:46:57,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 309 [2020-10-29 03:46:57,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:57,266 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:57,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 03:46:57,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:46:57,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 03:46:57,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:57,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:57,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:57,306 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:57,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:57,309 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:57,309 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:57,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:46:57,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:57,309 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:57,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:57,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:57,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:57,310 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:57,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-29 03:46:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:57,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:57,319 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:57,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:46:57,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:57,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:46:57,320 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:57,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:57,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:57,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:46:57,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:57,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:57,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:46:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:57,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:57,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:57,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:46:57,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:57,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:46:57,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:57,327 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:46:57,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:57,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:57,331 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-10-29 03:46:57,331 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [763331642] [2020-10-29 03:46:57,331 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:57,332 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 03:46:57,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058705700] [2020-10-29 03:46:57,333 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 03:46:57,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:57,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 03:46:57,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:46:57,334 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 6 states. [2020-10-29 03:46:57,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:57,406 INFO L93 Difference]: Finished difference Result 68 states and 72 transitions. [2020-10-29 03:46:57,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 03:46:57,407 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2020-10-29 03:46:57,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:57,407 INFO L225 Difference]: With dead ends: 68 [2020-10-29 03:46:57,408 INFO L226 Difference]: Without dead ends: 39 [2020-10-29 03:46:57,408 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:46:57,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-10-29 03:46:57,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-10-29 03:46:57,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-29 03:46:57,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-10-29 03:46:57,417 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 35 [2020-10-29 03:46:57,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:57,417 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-10-29 03:46:57,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 03:46:57,417 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-10-29 03:46:57,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-10-29 03:46:57,418 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:57,418 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:57,418 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 03:46:57,418 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:57,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:57,419 INFO L82 PathProgramCache]: Analyzing trace with hash -1891559564, now seen corresponding path program 6 times [2020-10-29 03:46:57,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:57,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559804401] [2020-10-29 03:46:57,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:57,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:57,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:57,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:57,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:57,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 03:46:57,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:46:57,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 424 [2020-10-29 03:46:57,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:57,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:57,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 03:46:57,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-29 03:46:57,857 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 03:46:57,857 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:57,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:57,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:57,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:57,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:57,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:57,907 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:46:57,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:57,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:57,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:57,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:57,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 03:46:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:57,914 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:57,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:57,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:46:57,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:46:57,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:57,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:57,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:46:57,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:57,917 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:57,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:46:57,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:57,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:57,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:57,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:46:57,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:57,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:46:57,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:57,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:57,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:57,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:46:57,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:57,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:57,927 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-10-29 03:46:57,927 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1559804401] [2020-10-29 03:46:57,927 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:57,927 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-29 03:46:57,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040528970] [2020-10-29 03:46:57,928 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-29 03:46:57,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:57,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-29 03:46:57,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:46:57,929 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 6 states. [2020-10-29 03:46:58,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:58,024 INFO L93 Difference]: Finished difference Result 69 states and 73 transitions. [2020-10-29 03:46:58,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 03:46:58,025 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 36 [2020-10-29 03:46:58,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:58,026 INFO L225 Difference]: With dead ends: 69 [2020-10-29 03:46:58,026 INFO L226 Difference]: Without dead ends: 44 [2020-10-29 03:46:58,027 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-29 03:46:58,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-10-29 03:46:58,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2020-10-29 03:46:58,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2020-10-29 03:46:58,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2020-10-29 03:46:58,041 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 36 [2020-10-29 03:46:58,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:46:58,042 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2020-10-29 03:46:58,042 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-29 03:46:58,042 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2020-10-29 03:46:58,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-10-29 03:46:58,043 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:46:58,044 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:46:58,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 03:46:58,044 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:46:58,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:46:58,045 INFO L82 PathProgramCache]: Analyzing trace with hash 8493409, now seen corresponding path program 7 times [2020-10-29 03:46:58,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:46:58,045 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942967189] [2020-10-29 03:46:58,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:46:58,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:58,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:58,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:58,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:59,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:59,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-29 03:46:59,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:46:59,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1318 [2020-10-29 03:46:59,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:59,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:59,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 03:46:59,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:46:59,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-29 03:46:59,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:59,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:46:59,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:59,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:59,577 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:59,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:46:59,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:59,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:46:59,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:59,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:59,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:46:59,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:59,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:46:59,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:59,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 03:46:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:59,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:59,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:59,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:46:59,587 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:59,587 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:46:59,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:59,587 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:46:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:59,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:46:59,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:59,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 03:46:59,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:46:59,592 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:46:59,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:46:59,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:46:59,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:46:59,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:46:59,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:46:59,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:46:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:46:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:46:59,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:46:59,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:46:59,603 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-29 03:46:59,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942967189] [2020-10-29 03:46:59,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:46:59,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 03:46:59,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644322799] [2020-10-29 03:46:59,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 03:46:59,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:46:59,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 03:46:59,605 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:46:59,605 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 14 states. [2020-10-29 03:46:59,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:46:59,975 INFO L93 Difference]: Finished difference Result 62 states and 68 transitions. [2020-10-29 03:46:59,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:46:59,975 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 37 [2020-10-29 03:46:59,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:46:59,976 INFO L225 Difference]: With dead ends: 62 [2020-10-29 03:46:59,977 INFO L226 Difference]: Without dead ends: 58 [2020-10-29 03:46:59,977 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:46:59,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-29 03:46:59,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-29 03:47:00,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-29 03:47:00,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 59 transitions. [2020-10-29 03:47:00,002 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 59 transitions. Word has length 37 [2020-10-29 03:47:00,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:00,002 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 59 transitions. [2020-10-29 03:47:00,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 03:47:00,002 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 59 transitions. [2020-10-29 03:47:00,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-29 03:47:00,003 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:00,003 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:00,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 03:47:00,003 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:00,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:00,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1219406572, now seen corresponding path program 8 times [2020-10-29 03:47:00,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:00,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440676100] [2020-10-29 03:47:00,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:00,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:00,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:00,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:00,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:01,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:01,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-29 03:47:01,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:01,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1559 [2020-10-29 03:47:01,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:01,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 03:47:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:01,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-29 03:47:01,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:01,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:01,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:01,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:01,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:01,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:01,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:01,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:01,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:01,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:01,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:01,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:01,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 03:47:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:01,791 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:01,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:01,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:01,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:01,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:01,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:01,794 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:01,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:01,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:01,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:01,795 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:01,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:47:01,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:01,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:01,804 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:01,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:01,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:01,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:01,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:01,805 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:01,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:01,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:01,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:01,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:01,811 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 4 proven. 17 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-29 03:47:01,812 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440676100] [2020-10-29 03:47:01,812 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:01,812 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 03:47:01,812 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773882684] [2020-10-29 03:47:01,813 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 03:47:01,813 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:01,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 03:47:01,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-29 03:47:01,814 INFO L87 Difference]: Start difference. First operand 54 states and 59 transitions. Second operand 15 states. [2020-10-29 03:47:02,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:02,410 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2020-10-29 03:47:02,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 03:47:02,411 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 38 [2020-10-29 03:47:02,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:02,413 INFO L225 Difference]: With dead ends: 80 [2020-10-29 03:47:02,413 INFO L226 Difference]: Without dead ends: 76 [2020-10-29 03:47:02,414 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=512, Unknown=0, NotChecked=0, Total=600 [2020-10-29 03:47:02,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-10-29 03:47:02,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 55. [2020-10-29 03:47:02,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-29 03:47:02,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2020-10-29 03:47:02,432 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 38 [2020-10-29 03:47:02,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:02,432 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2020-10-29 03:47:02,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 03:47:02,432 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2020-10-29 03:47:02,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-29 03:47:02,434 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:02,434 INFO L422 BasicCegarLoop]: trace histogram [5, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:02,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 03:47:02,434 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:02,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:02,435 INFO L82 PathProgramCache]: Analyzing trace with hash -629600319, now seen corresponding path program 9 times [2020-10-29 03:47:02,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:02,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1749541046] [2020-10-29 03:47:02,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:02,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:02,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:02,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:02,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:03,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:03,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 53 [2020-10-29 03:47:03,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:03,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1476 [2020-10-29 03:47:03,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:03,927 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 03:47:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-29 03:47:03,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:04,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:04,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:04,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:04,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:04,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:04,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:04,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:04,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:04,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:04,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:04,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:04,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:04,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:04,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 03:47:04,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:04,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:04,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:04,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:04,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:04,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:04,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:04,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:04,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:04,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:04,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:04,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:04,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 03:47:04,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:04,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:04,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:04,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:04,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:04,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:04,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:04,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:04,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:04,211 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 22 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-29 03:47:04,212 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1749541046] [2020-10-29 03:47:04,213 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:04,213 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 03:47:04,213 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997969588] [2020-10-29 03:47:04,213 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 03:47:04,213 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:04,215 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 03:47:04,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:47:04,215 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand 16 states. [2020-10-29 03:47:04,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:04,718 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2020-10-29 03:47:04,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:47:04,719 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 39 [2020-10-29 03:47:04,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:04,720 INFO L225 Difference]: With dead ends: 67 [2020-10-29 03:47:04,720 INFO L226 Difference]: Without dead ends: 63 [2020-10-29 03:47:04,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2020-10-29 03:47:04,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-10-29 03:47:04,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 47. [2020-10-29 03:47:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-29 03:47:04,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-10-29 03:47:04,733 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 39 [2020-10-29 03:47:04,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:04,733 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-10-29 03:47:04,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 03:47:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-10-29 03:47:04,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-10-29 03:47:04,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:04,734 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:04,734 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-29 03:47:04,734 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:04,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:04,735 INFO L82 PathProgramCache]: Analyzing trace with hash -1639752173, now seen corresponding path program 10 times [2020-10-29 03:47:04,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:04,735 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1933327106] [2020-10-29 03:47:04,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:04,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:04,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:04,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:05,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:05,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-10-29 03:47:05,257 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:05,257 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 507 [2020-10-29 03:47:05,257 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:05,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:05,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 03:47:05,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:05,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 03:47:05,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:05,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:05,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:05,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:05,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:05,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:05,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:05,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:05,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:05,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:05,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:05,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 03:47:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:05,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:05,317 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:05,317 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:05,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:05,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:05,318 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:05,318 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:05,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:05,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:05,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:05,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:05,319 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 03:47:05,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:05,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:05,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:05,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:05,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:05,322 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:05,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:05,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:05,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:05,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:05,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:05,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:05,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:47:05,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:05,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:05,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:05,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:05,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:05,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:05,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:05,326 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:05,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:05,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:05,330 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-29 03:47:05,330 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1933327106] [2020-10-29 03:47:05,330 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:05,330 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 03:47:05,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170018522] [2020-10-29 03:47:05,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 03:47:05,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:05,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 03:47:05,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:47:05,331 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 7 states. [2020-10-29 03:47:05,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:05,416 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2020-10-29 03:47:05,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 03:47:05,416 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2020-10-29 03:47:05,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:05,417 INFO L225 Difference]: With dead ends: 85 [2020-10-29 03:47:05,417 INFO L226 Difference]: Without dead ends: 48 [2020-10-29 03:47:05,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:47:05,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-10-29 03:47:05,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-10-29 03:47:05,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-29 03:47:05,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 50 transitions. [2020-10-29 03:47:05,426 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 50 transitions. Word has length 44 [2020-10-29 03:47:05,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:05,426 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 50 transitions. [2020-10-29 03:47:05,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 03:47:05,427 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 50 transitions. [2020-10-29 03:47:05,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-10-29 03:47:05,427 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:05,427 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:05,427 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-29 03:47:05,427 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:05,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:05,428 INFO L82 PathProgramCache]: Analyzing trace with hash -400969695, now seen corresponding path program 11 times [2020-10-29 03:47:05,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:05,428 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050849518] [2020-10-29 03:47:05,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:05,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:05,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:05,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:06,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:06,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 61 [2020-10-29 03:47:06,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:06,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 663 [2020-10-29 03:47:06,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:06,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:06,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-29 03:47:06,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 03:47:06,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-29 03:47:06,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:06,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:06,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:06,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:06,161 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:06,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:06,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:06,162 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:06,162 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:06,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:06,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:06,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-10-29 03:47:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:06,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:06,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:06,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:06,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:06,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:06,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:06,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:06,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:06,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:06,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:06,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:06,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:47:06,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:06,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:06,171 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:06,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:06,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:06,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:06,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:06,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:06,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:06,172 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:06,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:47:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:06,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:06,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:06,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:06,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:06,175 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:06,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:06,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:06,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:06,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:06,179 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-10-29 03:47:06,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050849518] [2020-10-29 03:47:06,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:06,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 03:47:06,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254417594] [2020-10-29 03:47:06,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 03:47:06,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:06,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 03:47:06,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:47:06,181 INFO L87 Difference]: Start difference. First operand 48 states and 50 transitions. Second operand 7 states. [2020-10-29 03:47:06,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:06,278 INFO L93 Difference]: Finished difference Result 85 states and 89 transitions. [2020-10-29 03:47:06,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-29 03:47:06,278 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2020-10-29 03:47:06,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:06,279 INFO L225 Difference]: With dead ends: 85 [2020-10-29 03:47:06,279 INFO L226 Difference]: Without dead ends: 53 [2020-10-29 03:47:06,280 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-29 03:47:06,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-10-29 03:47:06,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2020-10-29 03:47:06,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-10-29 03:47:06,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-10-29 03:47:06,295 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 45 [2020-10-29 03:47:06,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:06,295 INFO L481 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-10-29 03:47:06,295 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 03:47:06,295 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-10-29 03:47:06,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-29 03:47:06,295 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:06,296 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:06,296 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-29 03:47:06,296 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:06,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:06,296 INFO L82 PathProgramCache]: Analyzing trace with hash 2143392434, now seen corresponding path program 12 times [2020-10-29 03:47:06,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:06,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [823438675] [2020-10-29 03:47:06,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:06,320 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:06,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:06,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:07,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:07,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 62 [2020-10-29 03:47:07,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:07,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1423 [2020-10-29 03:47:07,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:07,738 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:07,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 03:47:07,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:07,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 03:47:07,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:07,978 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:07,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:07,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:07,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:07,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:07,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:07,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:07,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:07,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:07,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:07,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:07,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:07,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:07,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 03:47:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:07,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:07,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:07,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:07,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:07,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:07,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:07,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:07,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:07,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:07,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 03:47:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:07,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:07,995 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:07,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:07,995 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:07,995 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:07,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:07,996 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:07,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:07,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:07,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:47:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:08,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:08,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:08,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:08,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:08,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:08,002 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:08,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:08,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:08,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:08,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:08,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:08,013 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 6 proven. 25 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-29 03:47:08,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [823438675] [2020-10-29 03:47:08,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:08,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 03:47:08,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997842604] [2020-10-29 03:47:08,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 03:47:08,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:08,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 03:47:08,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:47:08,015 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 16 states. [2020-10-29 03:47:08,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:08,501 INFO L93 Difference]: Finished difference Result 74 states and 81 transitions. [2020-10-29 03:47:08,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 03:47:08,501 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 46 [2020-10-29 03:47:08,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:08,502 INFO L225 Difference]: With dead ends: 74 [2020-10-29 03:47:08,503 INFO L226 Difference]: Without dead ends: 70 [2020-10-29 03:47:08,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=64, Invalid=442, Unknown=0, NotChecked=0, Total=506 [2020-10-29 03:47:08,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-10-29 03:47:08,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 66. [2020-10-29 03:47:08,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-29 03:47:08,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 72 transitions. [2020-10-29 03:47:08,517 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 72 transitions. Word has length 46 [2020-10-29 03:47:08,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:08,517 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 72 transitions. [2020-10-29 03:47:08,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 03:47:08,518 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 72 transitions. [2020-10-29 03:47:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-10-29 03:47:08,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:08,518 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:08,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-29 03:47:08,519 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:08,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:08,519 INFO L82 PathProgramCache]: Analyzing trace with hash -585760191, now seen corresponding path program 13 times [2020-10-29 03:47:08,519 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:08,520 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292073217] [2020-10-29 03:47:08,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:08,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:08,538 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:08,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:09,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:09,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:09,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 03:47:09,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:09,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1462 [2020-10-29 03:47:09,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:09,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:09,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 03:47:09,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:09,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-29 03:47:09,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:10,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:10,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:10,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:10,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:10,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:10,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:10,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:10,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:10,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:10,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:10,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:10,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-29 03:47:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:10,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:10,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:10,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:10,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:10,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:10,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:10,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:10,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:10,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:10,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:10,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:10,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:47:10,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:10,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:10,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:10,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:10,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:10,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:10,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:10,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:10,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:10,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:10,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:10,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:10,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 03:47:10,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:10,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:10,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:10,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:10,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:10,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:10,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:10,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:10,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:10,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:10,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:10,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:10,309 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 6 proven. 30 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-29 03:47:10,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292073217] [2020-10-29 03:47:10,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:10,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 03:47:10,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131016724] [2020-10-29 03:47:10,311 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 03:47:10,311 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:10,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 03:47:10,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=238, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:47:10,312 INFO L87 Difference]: Start difference. First operand 66 states and 72 transitions. Second operand 17 states. [2020-10-29 03:47:11,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:11,115 INFO L93 Difference]: Finished difference Result 95 states and 107 transitions. [2020-10-29 03:47:11,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-29 03:47:11,117 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 47 [2020-10-29 03:47:11,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:11,118 INFO L225 Difference]: With dead ends: 95 [2020-10-29 03:47:11,119 INFO L226 Difference]: Without dead ends: 91 [2020-10-29 03:47:11,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2020-10-29 03:47:11,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-10-29 03:47:11,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2020-10-29 03:47:11,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-29 03:47:11,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 74 transitions. [2020-10-29 03:47:11,139 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 74 transitions. Word has length 47 [2020-10-29 03:47:11,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:11,139 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 74 transitions. [2020-10-29 03:47:11,140 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 03:47:11,140 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 74 transitions. [2020-10-29 03:47:11,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-29 03:47:11,140 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:11,140 INFO L422 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:11,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-29 03:47:11,141 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:11,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:11,141 INFO L82 PathProgramCache]: Analyzing trace with hash 709854354, now seen corresponding path program 14 times [2020-10-29 03:47:11,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:11,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1497455831] [2020-10-29 03:47:11,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:11,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:11,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:11,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:13,113 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:13,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-29 03:47:13,114 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:13,114 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1959 [2020-10-29 03:47:13,114 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:13,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:13,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 03:47:13,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:13,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 03:47:13,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:13,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:13,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:13,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:13,518 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:13,518 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:13,518 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:13,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:13,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:13,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:13,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:13,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:13,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:13,519 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:13,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 03:47:13,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:13,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:13,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:13,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:13,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:13,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:13,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:13,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:13,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:13,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:13,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 03:47:13,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:13,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:13,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:13,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:13,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:13,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:13,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:13,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:13,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:13,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:13,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:13,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:13,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:47:13,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:13,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:13,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:13,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:13,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:13,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:13,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:13,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:13,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:13,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:13,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:13,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:13,557 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 6 proven. 36 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-10-29 03:47:13,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1497455831] [2020-10-29 03:47:13,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:13,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 03:47:13,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194000433] [2020-10-29 03:47:13,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 03:47:13,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:13,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 03:47:13,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:47:13,559 INFO L87 Difference]: Start difference. First operand 67 states and 74 transitions. Second operand 18 states. [2020-10-29 03:47:14,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:14,272 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2020-10-29 03:47:14,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 03:47:14,273 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 48 [2020-10-29 03:47:14,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:14,274 INFO L225 Difference]: With dead ends: 79 [2020-10-29 03:47:14,274 INFO L226 Difference]: Without dead ends: 75 [2020-10-29 03:47:14,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2020-10-29 03:47:14,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-29 03:47:14,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 56. [2020-10-29 03:47:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-10-29 03:47:14,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2020-10-29 03:47:14,289 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 48 [2020-10-29 03:47:14,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:14,289 INFO L481 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2020-10-29 03:47:14,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 03:47:14,290 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2020-10-29 03:47:14,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-10-29 03:47:14,290 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:14,290 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:14,291 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-29 03:47:14,291 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:14,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:14,291 INFO L82 PathProgramCache]: Analyzing trace with hash 755529634, now seen corresponding path program 15 times [2020-10-29 03:47:14,291 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:14,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1657211685] [2020-10-29 03:47:14,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:14,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:14,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:15,114 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-29 03:47:15,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:15,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 809 [2020-10-29 03:47:15,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:15,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 03:47:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-29 03:47:15,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:15,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:15,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:15,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:15,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:15,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:15,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:15,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:15,178 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:15,178 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:15,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:15,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:15,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:15,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:15,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 03:47:15,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:15,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:15,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:15,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:15,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:15,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:15,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:15,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:15,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:15,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 03:47:15,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:15,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:15,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:15,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:15,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:15,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:15,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:15,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:15,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:15,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:47:15,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:15,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:15,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:15,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:15,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:15,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:15,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:15,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:15,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 03:47:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:15,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:15,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:15,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:15,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:15,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:15,196 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:15,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:15,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:15,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:15,200 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-29 03:47:15,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1657211685] [2020-10-29 03:47:15,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:15,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 03:47:15,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90624371] [2020-10-29 03:47:15,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 03:47:15,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:15,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 03:47:15,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 03:47:15,202 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand 8 states. [2020-10-29 03:47:15,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:15,326 INFO L93 Difference]: Finished difference Result 107 states and 113 transitions. [2020-10-29 03:47:15,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 03:47:15,327 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2020-10-29 03:47:15,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:15,327 INFO L225 Difference]: With dead ends: 107 [2020-10-29 03:47:15,327 INFO L226 Difference]: Without dead ends: 62 [2020-10-29 03:47:15,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-29 03:47:15,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2020-10-29 03:47:15,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 58. [2020-10-29 03:47:15,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-10-29 03:47:15,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-10-29 03:47:15,339 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 53 [2020-10-29 03:47:15,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:15,339 INFO L481 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-10-29 03:47:15,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 03:47:15,339 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-10-29 03:47:15,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-29 03:47:15,340 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:15,340 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:15,340 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-29 03:47:15,340 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:15,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:15,340 INFO L82 PathProgramCache]: Analyzing trace with hash 1854591425, now seen corresponding path program 16 times [2020-10-29 03:47:15,341 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:15,341 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1710081860] [2020-10-29 03:47:15,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:15,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:15,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:16,427 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:17,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:17,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-29 03:47:17,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:17,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2028 [2020-10-29 03:47:17,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:17,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:17,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 03:47:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:17,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-29 03:47:17,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:17,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:17,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:17,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:17,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:17,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:17,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:17,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:17,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:17,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:17,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:17,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:17,691 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:17,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 03:47:17,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:17,694 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:17,695 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:17,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:17,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:17,696 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:17,696 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:17,696 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:17,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:17,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:17,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 03:47:17,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:17,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:17,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:17,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:17,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:17,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:17,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:17,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:17,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:17,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:17,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:17,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:17,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:47:17,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:17,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:17,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:17,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:17,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:17,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:17,707 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:17,707 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:17,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:17,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:17,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:17,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:17,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 03:47:17,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:17,710 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:17,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:17,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:17,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:17,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:17,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:17,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:17,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:17,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:17,723 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 8 proven. 41 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-29 03:47:17,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1710081860] [2020-10-29 03:47:17,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:17,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 03:47:17,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46684345] [2020-10-29 03:47:17,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 03:47:17,724 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:17,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 03:47:17,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:47:17,725 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 18 states. [2020-10-29 03:47:18,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:18,358 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2020-10-29 03:47:18,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 03:47:18,361 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 55 [2020-10-29 03:47:18,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:18,363 INFO L225 Difference]: With dead ends: 86 [2020-10-29 03:47:18,363 INFO L226 Difference]: Without dead ends: 82 [2020-10-29 03:47:18,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=580, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:47:18,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-10-29 03:47:18,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 78. [2020-10-29 03:47:18,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-10-29 03:47:18,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 85 transitions. [2020-10-29 03:47:18,381 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 85 transitions. Word has length 55 [2020-10-29 03:47:18,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:18,381 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 85 transitions. [2020-10-29 03:47:18,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 03:47:18,382 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 85 transitions. [2020-10-29 03:47:18,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-10-29 03:47:18,382 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:18,382 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:18,383 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-29 03:47:18,383 INFO L429 AbstractCegarLoop]: === Iteration 23 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:18,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:18,383 INFO L82 PathProgramCache]: Analyzing trace with hash -2126896396, now seen corresponding path program 17 times [2020-10-29 03:47:18,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:18,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848733797] [2020-10-29 03:47:18,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:18,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:18,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:18,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:19,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:20,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:20,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-29 03:47:20,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:20,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1991 [2020-10-29 03:47:20,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:20,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 03:47:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:20,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-29 03:47:20,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:20,789 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:20,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:20,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:20,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:20,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:20,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:20,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:20,795 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:20,795 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:20,795 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:20,796 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:20,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:47:20,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:20,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:20,803 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:20,804 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:20,804 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:20,804 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:20,804 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:20,804 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:20,805 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:20,805 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:20,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:47:20,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:20,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:20,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:20,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:20,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:20,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:20,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:20,814 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:20,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:20,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:20,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:20,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:20,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:47:20,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:20,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:20,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:20,826 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:20,826 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:20,826 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:47:20,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:20,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:20,827 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:20,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:20,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:47:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:20,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:20,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:20,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:20,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:20,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:47:20,840 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:20,840 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:20,841 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:20,841 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:20,861 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 8 proven. 47 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-29 03:47:20,861 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848733797] [2020-10-29 03:47:20,861 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:20,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 03:47:20,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013104077] [2020-10-29 03:47:20,865 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 03:47:20,866 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:20,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 03:47:20,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342 [2020-10-29 03:47:20,871 INFO L87 Difference]: Start difference. First operand 78 states and 85 transitions. Second operand 19 states. [2020-10-29 03:47:21,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:21,714 INFO L93 Difference]: Finished difference Result 109 states and 123 transitions. [2020-10-29 03:47:21,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 03:47:21,714 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 56 [2020-10-29 03:47:21,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:21,716 INFO L225 Difference]: With dead ends: 109 [2020-10-29 03:47:21,716 INFO L226 Difference]: Without dead ends: 105 [2020-10-29 03:47:21,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2020-10-29 03:47:21,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-10-29 03:47:21,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 79. [2020-10-29 03:47:21,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-10-29 03:47:21,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 87 transitions. [2020-10-29 03:47:21,734 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 87 transitions. Word has length 56 [2020-10-29 03:47:21,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:21,734 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 87 transitions. [2020-10-29 03:47:21,734 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 03:47:21,735 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 87 transitions. [2020-10-29 03:47:21,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-10-29 03:47:21,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:21,735 INFO L422 BasicCegarLoop]: trace histogram [7, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:21,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-29 03:47:21,736 INFO L429 AbstractCegarLoop]: === Iteration 24 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:21,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:21,736 INFO L82 PathProgramCache]: Analyzing trace with hash -998967263, now seen corresponding path program 18 times [2020-10-29 03:47:21,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:21,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1350217860] [2020-10-29 03:47:21,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:21,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:21,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:22,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:24,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:24,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-29 03:47:24,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:24,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2330 [2020-10-29 03:47:24,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:24,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:24,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 03:47:24,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:24,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-29 03:47:24,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:24,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:24,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:24,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:24,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:24,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:24,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:24,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:24,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:24,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:24,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:24,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:24,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:24,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:47:24,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:24,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:24,438 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:24,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:24,439 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:24,439 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:24,439 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:24,439 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:24,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:24,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:24,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:24,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:24,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 03:47:24,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:24,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:24,445 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:24,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:24,446 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:24,446 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:24,446 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:24,446 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:24,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:24,447 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:24,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:47:24,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:24,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:24,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:24,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:24,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:24,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:24,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:24,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:24,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:24,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:24,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:24,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 03:47:24,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:24,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:24,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:24,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:24,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:24,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:24,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:24,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:24,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:24,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:24,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:24,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:24,473 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 8 proven. 54 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-10-29 03:47:24,473 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1350217860] [2020-10-29 03:47:24,474 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:24,474 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 03:47:24,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079924110] [2020-10-29 03:47:24,474 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 03:47:24,474 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:24,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 03:47:24,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:47:24,475 INFO L87 Difference]: Start difference. First operand 79 states and 87 transitions. Second operand 20 states. [2020-10-29 03:47:25,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:25,381 INFO L93 Difference]: Finished difference Result 91 states and 99 transitions. [2020-10-29 03:47:25,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 03:47:25,384 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 57 [2020-10-29 03:47:25,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:25,386 INFO L225 Difference]: With dead ends: 91 [2020-10-29 03:47:25,386 INFO L226 Difference]: Without dead ends: 87 [2020-10-29 03:47:25,390 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2020-10-29 03:47:25,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-29 03:47:25,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 65. [2020-10-29 03:47:25,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-10-29 03:47:25,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2020-10-29 03:47:25,419 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 57 [2020-10-29 03:47:25,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:25,420 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2020-10-29 03:47:25,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 03:47:25,420 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2020-10-29 03:47:25,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-10-29 03:47:25,420 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:25,420 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:25,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-29 03:47:25,421 INFO L429 AbstractCegarLoop]: === Iteration 25 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:25,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:25,423 INFO L82 PathProgramCache]: Analyzing trace with hash 979106227, now seen corresponding path program 19 times [2020-10-29 03:47:25,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:25,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396531583] [2020-10-29 03:47:25,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:25,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:25,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:26,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-29 03:47:26,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:26,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1033 [2020-10-29 03:47:26,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:26,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 03:47:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 03:47:26,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:26,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:26,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:26,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,543 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:26,543 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:26,543 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:26,543 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:26,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:26,544 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:26,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:26,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 03:47:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:26,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,547 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:26,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:26,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:26,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:26,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:26,548 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:26,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:26,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:26,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:26,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:26,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 03:47:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:26,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:26,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:26,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:26,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:26,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:26,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:26,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:26,551 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:26,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:47:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:26,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,552 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:26,552 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:26,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:26,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:26,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:26,553 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:26,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:26,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:26,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:26,553 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:26,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 03:47:26,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:26,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:26,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:26,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:26,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:26,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:26,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:26,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:26,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:47:26,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:26,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:26,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:26,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:26,558 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:26,558 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:26,558 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:26,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:26,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:26,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:26,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:26,562 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2020-10-29 03:47:26,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396531583] [2020-10-29 03:47:26,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:26,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 03:47:26,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637795895] [2020-10-29 03:47:26,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 03:47:26,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:26,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 03:47:26,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-29 03:47:26,564 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand 9 states. [2020-10-29 03:47:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:26,686 INFO L93 Difference]: Finished difference Result 119 states and 123 transitions. [2020-10-29 03:47:26,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:47:26,686 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2020-10-29 03:47:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:26,687 INFO L225 Difference]: With dead ends: 119 [2020-10-29 03:47:26,687 INFO L226 Difference]: Without dead ends: 66 [2020-10-29 03:47:26,687 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-29 03:47:26,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-29 03:47:26,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-10-29 03:47:26,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-29 03:47:26,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2020-10-29 03:47:26,699 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 62 [2020-10-29 03:47:26,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:26,699 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2020-10-29 03:47:26,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 03:47:26,699 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2020-10-29 03:47:26,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-10-29 03:47:26,700 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:26,700 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:26,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-29 03:47:26,700 INFO L429 AbstractCegarLoop]: === Iteration 26 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:26,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:26,700 INFO L82 PathProgramCache]: Analyzing trace with hash -850189247, now seen corresponding path program 20 times [2020-10-29 03:47:26,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:26,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [463926810] [2020-10-29 03:47:26,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:26,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:26,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:27,830 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:27,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-29 03:47:27,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:27,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1117 [2020-10-29 03:47:27,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:27,831 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-29 03:47:27,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 03:47:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-29 03:47:27,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:27,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:27,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:27,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:27,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:27,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:27,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:27,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:27,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:27,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:27,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:27,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:27,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:27,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:27,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-29 03:47:27,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:27,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:27,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:27,899 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:27,899 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:27,899 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:27,899 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:27,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:27,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:27,900 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:27,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:47:27,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:27,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:27,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:27,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:27,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:27,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:27,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:27,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:27,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:27,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:27,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:27,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:27,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:47:27,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:27,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:27,906 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:27,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:27,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:27,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:27,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:27,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:27,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:27,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:27,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:27,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:27,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:47:27,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:27,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:27,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:27,910 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:27,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:27,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:27,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:27,910 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:27,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:27,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:27,910 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:27,910 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:27,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 03:47:27,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:27,912 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:27,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:27,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:27,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:27,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:27,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:27,913 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:27,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:27,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:27,914 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:27,917 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 10 proven. 15 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2020-10-29 03:47:27,917 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [463926810] [2020-10-29 03:47:27,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:27,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-29 03:47:27,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574145176] [2020-10-29 03:47:27,918 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-29 03:47:27,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:27,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-29 03:47:27,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-29 03:47:27,919 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand 9 states. [2020-10-29 03:47:28,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:28,078 INFO L93 Difference]: Finished difference Result 117 states and 121 transitions. [2020-10-29 03:47:28,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 03:47:28,078 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 63 [2020-10-29 03:47:28,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:28,079 INFO L225 Difference]: With dead ends: 117 [2020-10-29 03:47:28,079 INFO L226 Difference]: Without dead ends: 71 [2020-10-29 03:47:28,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-10-29 03:47:28,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-10-29 03:47:28,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 67. [2020-10-29 03:47:28,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-10-29 03:47:28,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 69 transitions. [2020-10-29 03:47:28,094 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 69 transitions. Word has length 63 [2020-10-29 03:47:28,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:28,094 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 69 transitions. [2020-10-29 03:47:28,094 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-29 03:47:28,095 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2020-10-29 03:47:28,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-29 03:47:28,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:28,095 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:28,095 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-29 03:47:28,096 INFO L429 AbstractCegarLoop]: === Iteration 27 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:28,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:28,096 INFO L82 PathProgramCache]: Analyzing trace with hash 1372168274, now seen corresponding path program 21 times [2020-10-29 03:47:28,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:28,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [148863110] [2020-10-29 03:47:28,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:28,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:28,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:28,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-29 03:47:30,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:30,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2297 [2020-10-29 03:47:30,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 03:47:30,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:30,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 03:47:30,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:30,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:30,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,781 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:30,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:30,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:47:30,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:30,781 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:30,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:30,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:47:30,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:30,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:30,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:30,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:30,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:30,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:30,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 03:47:30,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:30,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:30,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:30,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:30,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:30,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:30,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:30,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:47:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:30,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,797 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,797 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:30,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:30,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:30,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,798 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:30,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:30,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:30,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 03:47:30,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:30,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:30,802 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:30,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:30,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:30,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:30,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:47:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:30,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:30,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:30,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:30,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:30,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:30,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:30,807 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:30,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:30,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:30,807 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:30,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:30,819 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 10 proven. 61 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-29 03:47:30,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [148863110] [2020-10-29 03:47:30,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:30,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 03:47:30,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995001067] [2020-10-29 03:47:30,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 03:47:30,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:30,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 03:47:30,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=341, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:47:30,821 INFO L87 Difference]: Start difference. First operand 67 states and 69 transitions. Second operand 20 states. [2020-10-29 03:47:31,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:31,596 INFO L93 Difference]: Finished difference Result 98 states and 107 transitions. [2020-10-29 03:47:31,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 03:47:31,597 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 64 [2020-10-29 03:47:31,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:31,598 INFO L225 Difference]: With dead ends: 98 [2020-10-29 03:47:31,598 INFO L226 Difference]: Without dead ends: 94 [2020-10-29 03:47:31,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=80, Invalid=732, Unknown=0, NotChecked=0, Total=812 [2020-10-29 03:47:31,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-10-29 03:47:31,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2020-10-29 03:47:31,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 90 states. [2020-10-29 03:47:31,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 98 transitions. [2020-10-29 03:47:31,615 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 98 transitions. Word has length 64 [2020-10-29 03:47:31,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:31,615 INFO L481 AbstractCegarLoop]: Abstraction has 90 states and 98 transitions. [2020-10-29 03:47:31,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 03:47:31,616 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 98 transitions. [2020-10-29 03:47:31,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-10-29 03:47:31,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:31,616 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:31,617 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-29 03:47:31,617 INFO L429 AbstractCegarLoop]: === Iteration 28 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:31,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:31,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1545774689, now seen corresponding path program 22 times [2020-10-29 03:47:31,617 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:31,617 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1476053034] [2020-10-29 03:47:31,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:31,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:31,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:32,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:34,711 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:34,711 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-10-29 03:47:34,711 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:34,711 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3081 [2020-10-29 03:47:34,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:34,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:34,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 19 [2020-10-29 03:47:34,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:34,712 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-29 03:47:34,712 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:35,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:35,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:35,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:35,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:35,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:35,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:35,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:35,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:35,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:35,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:35,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 03:47:35,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:35,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:35,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:35,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:35,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:35,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:35,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:35,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:35,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:35,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:35,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:35,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:47:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:35,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:35,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:35,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:35,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:35,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:35,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:35,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:35,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:35,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 03:47:35,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:35,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:35,163 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:35,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:35,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:35,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:35,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:35,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:35,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:35,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:47:35,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:35,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:35,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:35,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:35,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:35,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:35,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:35,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:35,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:35,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:35,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:35,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 03:47:35,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:35,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:35,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:35,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:35,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:35,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:35,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:35,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:35,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:35,191 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 10 proven. 68 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-29 03:47:35,191 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1476053034] [2020-10-29 03:47:35,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:35,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-10-29 03:47:35,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641822913] [2020-10-29 03:47:35,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-10-29 03:47:35,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:35,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-10-29 03:47:35,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=379, Unknown=0, NotChecked=0, Total=420 [2020-10-29 03:47:35,193 INFO L87 Difference]: Start difference. First operand 90 states and 98 transitions. Second operand 21 states. [2020-10-29 03:47:36,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:36,208 INFO L93 Difference]: Finished difference Result 124 states and 140 transitions. [2020-10-29 03:47:36,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 03:47:36,209 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 65 [2020-10-29 03:47:36,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:36,210 INFO L225 Difference]: With dead ends: 124 [2020-10-29 03:47:36,210 INFO L226 Difference]: Without dead ends: 120 [2020-10-29 03:47:36,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=776, Unknown=0, NotChecked=0, Total=870 [2020-10-29 03:47:36,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-29 03:47:36,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 91. [2020-10-29 03:47:36,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-10-29 03:47:36,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 100 transitions. [2020-10-29 03:47:36,229 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 100 transitions. Word has length 65 [2020-10-29 03:47:36,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:36,230 INFO L481 AbstractCegarLoop]: Abstraction has 91 states and 100 transitions. [2020-10-29 03:47:36,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-10-29 03:47:36,230 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 100 transitions. [2020-10-29 03:47:36,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-29 03:47:36,230 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:36,231 INFO L422 BasicCegarLoop]: trace histogram [8, 6, 6, 6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:36,231 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-10-29 03:47:36,231 INFO L429 AbstractCegarLoop]: === Iteration 29 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:36,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:36,231 INFO L82 PathProgramCache]: Analyzing trace with hash -1662361038, now seen corresponding path program 23 times [2020-10-29 03:47:36,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:36,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541339976] [2020-10-29 03:47:36,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:36,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:36,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:37,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:39,487 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:39,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-10-29 03:47:39,487 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:39,487 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3242 [2020-10-29 03:47:39,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:39,487 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 03:47:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:39,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-29 03:47:39,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:39,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:39,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:39,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:39,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:39,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:39,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:39,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:39,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:39,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:39,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:39,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:47:39,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:47:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:39,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:39,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:39,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:39,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:39,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:39,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:39,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:39,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:39,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:39,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:39,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:39,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:47:39,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:39,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:39,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:39,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:39,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:39,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:39,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:39,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:39,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:39,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:39,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:39,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:39,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:47:39,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:39,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:39,948 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:39,948 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:39,948 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:39,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:39,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:39,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:39,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:39,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:47:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:39,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:39,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:39,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:39,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:39,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:39,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:39,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:39,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:39,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:39,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:39,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:47:39,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:39,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:39,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:39,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:39,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:39,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:39,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:39,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:39,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:39,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:39,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:39,975 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 10 proven. 76 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-29 03:47:39,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541339976] [2020-10-29 03:47:39,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:39,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 03:47:39,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515982600] [2020-10-29 03:47:39,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 03:47:39,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:39,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 03:47:39,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2020-10-29 03:47:39,977 INFO L87 Difference]: Start difference. First operand 91 states and 100 transitions. Second operand 22 states. [2020-10-29 03:47:41,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:41,033 INFO L93 Difference]: Finished difference Result 103 states and 112 transitions. [2020-10-29 03:47:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-10-29 03:47:41,034 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 66 [2020-10-29 03:47:41,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:41,035 INFO L225 Difference]: With dead ends: 103 [2020-10-29 03:47:41,035 INFO L226 Difference]: Without dead ends: 99 [2020-10-29 03:47:41,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=103, Invalid=889, Unknown=0, NotChecked=0, Total=992 [2020-10-29 03:47:41,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-10-29 03:47:41,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 74. [2020-10-29 03:47:41,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-29 03:47:41,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 76 transitions. [2020-10-29 03:47:41,048 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 76 transitions. Word has length 66 [2020-10-29 03:47:41,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:41,048 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 76 transitions. [2020-10-29 03:47:41,049 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 03:47:41,049 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 76 transitions. [2020-10-29 03:47:41,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2020-10-29 03:47:41,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:41,049 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:41,050 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-10-29 03:47:41,050 INFO L429 AbstractCegarLoop]: === Iteration 30 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:41,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:41,050 INFO L82 PathProgramCache]: Analyzing trace with hash -570173950, now seen corresponding path program 24 times [2020-10-29 03:47:41,050 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:41,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1391390370] [2020-10-29 03:47:41,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:41,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:41,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:41,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:42,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:42,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 03:47:42,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:42,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1315 [2020-10-29 03:47:42,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:42,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 03:47:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:42,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 03:47:42,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:42,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:42,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:42,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:42,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:42,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:42,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:42,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:42,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:42,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:42,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:42,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:42,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-29 03:47:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:42,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:42,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:42,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:42,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:42,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:42,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:42,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:42,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:42,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:42,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 03:47:42,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:42,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:42,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:42,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:42,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:42,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:42,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:42,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:42,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:42,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:42,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:42,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:42,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:47:42,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:42,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:42,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:42,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:42,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:42,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:42,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:42,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:42,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:42,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:42,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:42,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:42,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 03:47:42,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:42,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:42,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:42,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:42,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:42,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:42,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:42,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:42,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:42,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:42,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:42,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:42,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:47:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:42,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:42,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:42,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:42,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:42,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:42,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:42,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:42,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:42,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:42,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:42,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:42,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 03:47:42,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:42,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:42,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:42,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:42,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:42,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:42,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:42,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:42,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:42,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:42,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:42,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2020-10-29 03:47:42,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1391390370] [2020-10-29 03:47:42,472 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:42,472 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 03:47:42,472 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116785414] [2020-10-29 03:47:42,472 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 03:47:42,472 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:42,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 03:47:42,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:47:42,473 INFO L87 Difference]: Start difference. First operand 74 states and 76 transitions. Second operand 10 states. [2020-10-29 03:47:42,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:42,608 INFO L93 Difference]: Finished difference Result 136 states and 140 transitions. [2020-10-29 03:47:42,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 03:47:42,608 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 71 [2020-10-29 03:47:42,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:42,610 INFO L225 Difference]: With dead ends: 136 [2020-10-29 03:47:42,610 INFO L226 Difference]: Without dead ends: 75 [2020-10-29 03:47:42,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:47:42,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-10-29 03:47:42,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-10-29 03:47:42,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-10-29 03:47:42,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 77 transitions. [2020-10-29 03:47:42,622 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 77 transitions. Word has length 71 [2020-10-29 03:47:42,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:42,622 INFO L481 AbstractCegarLoop]: Abstraction has 75 states and 77 transitions. [2020-10-29 03:47:42,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 03:47:42,622 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 77 transitions. [2020-10-29 03:47:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2020-10-29 03:47:42,623 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:42,623 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:42,623 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-10-29 03:47:42,623 INFO L429 AbstractCegarLoop]: === Iteration 31 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:42,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:42,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1043901236, now seen corresponding path program 25 times [2020-10-29 03:47:42,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:42,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [748372040] [2020-10-29 03:47:42,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:42,641 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:42,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:44,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:44,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-29 03:47:44,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:47:44,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1468 [2020-10-29 03:47:44,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:44,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:44,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 03:47:44,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 03:47:44,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 03:47:44,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:44,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:44,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:44,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:44,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:44,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:44,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:44,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:44,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:44,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:44,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:44,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:44,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:44,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:44,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2020-10-29 03:47:44,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:44,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:44,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:44,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:44,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:44,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:44,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:44,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:44,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:44,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:44,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:44,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:44,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:47:44,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:44,181 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:44,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:44,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:44,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:44,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:44,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:44,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:44,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:44,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:44,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:44,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:44,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 03:47:44,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:44,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:44,184 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:44,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:44,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:44,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:44,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:44,185 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:44,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:44,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:44,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:44,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:44,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:47:44,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:44,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:44,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:44,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:44,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:44,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:44,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:44,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:44,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:44,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:44,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 03:47:44,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:44,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:44,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:44,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:44,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:44,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:44,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:44,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:44,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:44,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:44,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:47:44,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:44,193 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:44,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:44,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:44,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:44,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:47:44,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:44,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:44,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:44,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:47:44,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:44,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:44,198 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 12 proven. 21 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2020-10-29 03:47:44,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [748372040] [2020-10-29 03:47:44,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:44,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-29 03:47:44,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13930726] [2020-10-29 03:47:44,199 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-29 03:47:44,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:44,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-29 03:47:44,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:47:44,199 INFO L87 Difference]: Start difference. First operand 75 states and 77 transitions. Second operand 10 states. [2020-10-29 03:47:44,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:44,361 INFO L93 Difference]: Finished difference Result 133 states and 137 transitions. [2020-10-29 03:47:44,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 03:47:44,362 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 72 [2020-10-29 03:47:44,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:44,363 INFO L225 Difference]: With dead ends: 133 [2020-10-29 03:47:44,363 INFO L226 Difference]: Without dead ends: 80 [2020-10-29 03:47:44,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2020-10-29 03:47:44,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-10-29 03:47:44,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2020-10-29 03:47:44,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-10-29 03:47:44,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 78 transitions. [2020-10-29 03:47:44,378 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 78 transitions. Word has length 72 [2020-10-29 03:47:44,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:44,378 INFO L481 AbstractCegarLoop]: Abstraction has 76 states and 78 transitions. [2020-10-29 03:47:44,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-29 03:47:44,378 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 78 transitions. [2020-10-29 03:47:44,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-29 03:47:44,379 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:44,379 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:44,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-10-29 03:47:44,379 INFO L429 AbstractCegarLoop]: === Iteration 32 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:44,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:44,380 INFO L82 PathProgramCache]: Analyzing trace with hash 825197089, now seen corresponding path program 26 times [2020-10-29 03:47:44,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:44,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1294752748] [2020-10-29 03:47:44,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:44,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:44,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:45,386 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:47,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:47,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-29 03:47:47,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:47,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3117 [2020-10-29 03:47:47,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:47,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:47,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-29 03:47:47,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:47,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-29 03:47:47,510 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:47,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:47,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:47,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:47,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:47,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:47,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:47,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:47:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:47,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:47,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:47,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:47,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:47,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:47,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:47,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:47,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:47,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:47,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:47,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:47,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:47:47,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:47,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:47,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:47,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:47,943 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:47,943 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:47,943 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:47,943 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:47,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:47,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:47,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:47:47,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:47,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:47,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:47,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:47,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:47,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:47,947 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:47,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:47:47,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:47,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:47,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:47,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:47,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:47,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:47,951 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:47,951 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:47,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:47,951 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:47,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:47,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:47,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:47:47,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:47,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:47,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:47,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:47,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:47,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:47,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:47,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:47,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:47,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:47,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:47,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 03:47:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:47,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:47,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:47,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:47,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:47,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:47,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:47,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:47,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:47,977 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 12 proven. 85 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 03:47:47,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1294752748] [2020-10-29 03:47:47,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:47,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-10-29 03:47:47,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259310744] [2020-10-29 03:47:47,978 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-29 03:47:47,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:47,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-29 03:47:47,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=419, Unknown=0, NotChecked=0, Total=462 [2020-10-29 03:47:47,979 INFO L87 Difference]: Start difference. First operand 76 states and 78 transitions. Second operand 22 states. [2020-10-29 03:47:48,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:48,909 INFO L93 Difference]: Finished difference Result 110 states and 120 transitions. [2020-10-29 03:47:48,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 03:47:48,909 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 73 [2020-10-29 03:47:48,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:48,910 INFO L225 Difference]: With dead ends: 110 [2020-10-29 03:47:48,910 INFO L226 Difference]: Without dead ends: 106 [2020-10-29 03:47:48,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=88, Invalid=904, Unknown=0, NotChecked=0, Total=992 [2020-10-29 03:47:48,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-10-29 03:47:48,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 102. [2020-10-29 03:47:48,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-10-29 03:47:48,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 111 transitions. [2020-10-29 03:47:48,930 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 111 transitions. Word has length 73 [2020-10-29 03:47:48,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:48,930 INFO L481 AbstractCegarLoop]: Abstraction has 102 states and 111 transitions. [2020-10-29 03:47:48,930 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-29 03:47:48,930 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 111 transitions. [2020-10-29 03:47:48,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-10-29 03:47:48,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:48,931 INFO L422 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:48,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-10-29 03:47:48,931 INFO L429 AbstractCegarLoop]: === Iteration 33 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:48,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:48,932 INFO L82 PathProgramCache]: Analyzing trace with hash -1659664172, now seen corresponding path program 27 times [2020-10-29 03:47:48,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:48,932 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1660516934] [2020-10-29 03:47:48,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:48,956 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:48,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:50,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:52,776 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:52,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-29 03:47:52,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:52,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3829 [2020-10-29 03:47:52,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:52,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 21 [2020-10-29 03:47:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:52,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 03:47:52,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:53,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:53,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:53,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:53,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:53,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:53,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:53,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:53,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:53,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:53,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:53,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-10-29 03:47:53,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:53,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:53,270 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:53,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:53,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:53,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:53,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:53,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:53,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:53,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:53,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:47:53,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:53,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:53,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:53,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:53,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:53,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:53,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:53,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:53,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:53,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:53,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:53,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:53,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 03:47:53,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:53,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:53,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:53,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:53,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:53,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:47:53,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:53,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:53,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:53,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:53,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:47:53,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:53,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:53,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:53,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:53,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:53,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:53,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:53,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:53,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:53,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:53,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:53,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:53,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 03:47:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:53,289 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:53,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:53,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:53,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:53,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:53,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:53,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:53,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:53,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:53,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:47:53,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:53,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:53,297 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:53,297 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:53,297 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:53,297 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:53,297 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:53,297 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:53,297 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:53,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:53,298 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:53,298 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:53,313 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 12 proven. 93 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 03:47:53,313 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1660516934] [2020-10-29 03:47:53,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:53,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2020-10-29 03:47:53,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245774638] [2020-10-29 03:47:53,314 INFO L461 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-10-29 03:47:53,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:53,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-10-29 03:47:53,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=461, Unknown=0, NotChecked=0, Total=506 [2020-10-29 03:47:53,315 INFO L87 Difference]: Start difference. First operand 102 states and 111 transitions. Second operand 23 states. [2020-10-29 03:47:54,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:47:54,886 INFO L93 Difference]: Finished difference Result 140 states and 158 transitions. [2020-10-29 03:47:54,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 03:47:54,887 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 74 [2020-10-29 03:47:54,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:47:54,889 INFO L225 Difference]: With dead ends: 140 [2020-10-29 03:47:54,889 INFO L226 Difference]: Without dead ends: 136 [2020-10-29 03:47:54,892 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=147, Invalid=1493, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 03:47:54,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-29 03:47:54,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 103. [2020-10-29 03:47:54,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-29 03:47:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 113 transitions. [2020-10-29 03:47:54,914 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 113 transitions. Word has length 74 [2020-10-29 03:47:54,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:47:54,915 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 113 transitions. [2020-10-29 03:47:54,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-10-29 03:47:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 113 transitions. [2020-10-29 03:47:54,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2020-10-29 03:47:54,916 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:47:54,916 INFO L422 BasicCegarLoop]: trace histogram [9, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:47:54,916 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-10-29 03:47:54,916 INFO L429 AbstractCegarLoop]: === Iteration 34 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:47:54,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:47:54,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1380951935, now seen corresponding path program 28 times [2020-10-29 03:47:54,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:47:54,917 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [72809864] [2020-10-29 03:47:54,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:47:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:54,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:54,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:56,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:58,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:58,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-29 03:47:58,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:47:58,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3982 [2020-10-29 03:47:58,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:58,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 03:47:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:47:58,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 03:47:58,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:59,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:47:59,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:59,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:59,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:59,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:47:59,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:59,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:59,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:59,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:59,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:47:59,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:59,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:47:59,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:59,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:47:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:59,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:59,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:59,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:59,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:59,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:59,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:59,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:59,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:59,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:59,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:59,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 03:47:59,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:59,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:59,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:59,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:59,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:59,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:59,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:59,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:59,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:59,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:59,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:59,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:47:59,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:59,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:59,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:59,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:59,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:59,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:59,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:59,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:59,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:59,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 03:47:59,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:59,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:59,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:59,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:59,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:59,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:59,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:59,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:59,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:59,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:59,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:59,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:59,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:47:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:59,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:59,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:59,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:59,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:59,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:59,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:59,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:59,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:59,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:59,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:59,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:59,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 03:47:59,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:47:59,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:47:59,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:47:59,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:47:59,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:47:59,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:47:59,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:47:59,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:47:59,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:47:59,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:47:59,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:47:59,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:47:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 12 proven. 102 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-10-29 03:47:59,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [72809864] [2020-10-29 03:47:59,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:47:59,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 03:47:59,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646930660] [2020-10-29 03:47:59,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 03:47:59,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:47:59,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 03:47:59,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2020-10-29 03:47:59,562 INFO L87 Difference]: Start difference. First operand 103 states and 113 transitions. Second operand 24 states. [2020-10-29 03:48:00,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:00,791 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2020-10-29 03:48:00,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-29 03:48:00,792 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 75 [2020-10-29 03:48:00,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:00,793 INFO L225 Difference]: With dead ends: 115 [2020-10-29 03:48:00,793 INFO L226 Difference]: Without dead ends: 111 [2020-10-29 03:48:00,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=114, Invalid=1076, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 03:48:00,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-29 03:48:00,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 83. [2020-10-29 03:48:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83 states. [2020-10-29 03:48:00,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 85 transitions. [2020-10-29 03:48:00,809 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 85 transitions. Word has length 75 [2020-10-29 03:48:00,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:00,809 INFO L481 AbstractCegarLoop]: Abstraction has 83 states and 85 transitions. [2020-10-29 03:48:00,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 03:48:00,809 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 85 transitions. [2020-10-29 03:48:00,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-29 03:48:00,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:00,810 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:00,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-10-29 03:48:00,811 INFO L429 AbstractCegarLoop]: === Iteration 35 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:00,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:00,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1165877933, now seen corresponding path program 29 times [2020-10-29 03:48:00,811 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:00,811 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528882892] [2020-10-29 03:48:00,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:00,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:00,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:00,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 03:48:02,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:48:02,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1858 [2020-10-29 03:48:02,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,683 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 9 [2020-10-29 03:48:02,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-29 03:48:02,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 03:48:02,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:02,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:02,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:02,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:02,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:02,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:02,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-29 03:48:02,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,768 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,768 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,768 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,768 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:02,768 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,769 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:02,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:02,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:02,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:48:02,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:02,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:02,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:02,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:02,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:48:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:02,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:02,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:02,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:02,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:48:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,776 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:02,777 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,777 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:02,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:02,777 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:02,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:48:02,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,779 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,780 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,780 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:02,780 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,780 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:02,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:02,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:02,781 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 03:48:02,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:02,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:02,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:02,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:02,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:48:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:02,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:02,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:02,785 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:02,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:02,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:02,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:02,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:02,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:02,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:02,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:02,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:02,791 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 14 proven. 28 refuted. 0 times theorem prover too weak. 189 trivial. 0 not checked. [2020-10-29 03:48:02,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528882892] [2020-10-29 03:48:02,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:02,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-29 03:48:02,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357178427] [2020-10-29 03:48:02,792 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-29 03:48:02,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:02,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-29 03:48:02,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-29 03:48:02,793 INFO L87 Difference]: Start difference. First operand 83 states and 85 transitions. Second operand 11 states. [2020-10-29 03:48:02,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:02,996 INFO L93 Difference]: Finished difference Result 158 states and 164 transitions. [2020-10-29 03:48:02,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 03:48:02,997 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 80 [2020-10-29 03:48:02,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:02,998 INFO L225 Difference]: With dead ends: 158 [2020-10-29 03:48:02,998 INFO L226 Difference]: Without dead ends: 89 [2020-10-29 03:48:02,999 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2020-10-29 03:48:02,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-10-29 03:48:03,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 85. [2020-10-29 03:48:03,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-10-29 03:48:03,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 87 transitions. [2020-10-29 03:48:03,015 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 87 transitions. Word has length 80 [2020-10-29 03:48:03,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:03,015 INFO L481 AbstractCegarLoop]: Abstraction has 85 states and 87 transitions. [2020-10-29 03:48:03,015 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-29 03:48:03,015 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 87 transitions. [2020-10-29 03:48:03,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-10-29 03:48:03,016 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:03,016 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:03,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-10-29 03:48:03,017 INFO L429 AbstractCegarLoop]: === Iteration 36 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:03,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:03,017 INFO L82 PathProgramCache]: Analyzing trace with hash -600361486, now seen corresponding path program 30 times [2020-10-29 03:48:03,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:03,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1872551744] [2020-10-29 03:48:03,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:03,039 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:03,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:04,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:07,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:07,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-29 03:48:07,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:07,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4587 [2020-10-29 03:48:07,619 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:07,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:07,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 22 [2020-10-29 03:48:07,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:07,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 03:48:07,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:08,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:08,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:08,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:08,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:08,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:08,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:08,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:08,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:08,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:08,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:08,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:08,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:08,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:08,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:48:08,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:08,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:08,207 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:08,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:08,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:08,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:08,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:08,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:08,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:08,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:08,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:08,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 03:48:08,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:08,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:08,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:08,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:08,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:08,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:08,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:08,213 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:08,213 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:08,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:08,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:08,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:48:08,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:08,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:08,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:08,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:08,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:08,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:08,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:08,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:08,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:08,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:08,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 03:48:08,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:08,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:08,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:08,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:08,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:08,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:08,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:08,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:08,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:08,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:08,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:08,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:08,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:48:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:08,228 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:08,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:08,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:08,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:08,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:08,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:08,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:08,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:08,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:08,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 03:48:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:08,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:08,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:08,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:08,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:08,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:08,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:08,236 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:08,236 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:08,237 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:08,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:48:08,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:08,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:08,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:08,241 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:08,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:08,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:08,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:08,242 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:08,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:08,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:08,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:08,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 14 proven. 113 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-29 03:48:08,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1872551744] [2020-10-29 03:48:08,282 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:08,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-10-29 03:48:08,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678428329] [2020-10-29 03:48:08,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-10-29 03:48:08,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:08,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-10-29 03:48:08,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=505, Unknown=0, NotChecked=0, Total=552 [2020-10-29 03:48:08,283 INFO L87 Difference]: Start difference. First operand 85 states and 87 transitions. Second operand 24 states. [2020-10-29 03:48:09,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:09,445 INFO L93 Difference]: Finished difference Result 122 states and 133 transitions. [2020-10-29 03:48:09,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-10-29 03:48:09,446 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 82 [2020-10-29 03:48:09,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:09,447 INFO L225 Difference]: With dead ends: 122 [2020-10-29 03:48:09,447 INFO L226 Difference]: Without dead ends: 118 [2020-10-29 03:48:09,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=96, Invalid=1094, Unknown=0, NotChecked=0, Total=1190 [2020-10-29 03:48:09,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-10-29 03:48:09,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2020-10-29 03:48:09,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-29 03:48:09,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 124 transitions. [2020-10-29 03:48:09,475 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 124 transitions. Word has length 82 [2020-10-29 03:48:09,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:09,475 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 124 transitions. [2020-10-29 03:48:09,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-10-29 03:48:09,475 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 124 transitions. [2020-10-29 03:48:09,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-29 03:48:09,477 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:09,477 INFO L422 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:09,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-10-29 03:48:09,477 INFO L429 AbstractCegarLoop]: === Iteration 37 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:09,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:09,477 INFO L82 PathProgramCache]: Analyzing trace with hash -460606847, now seen corresponding path program 31 times [2020-10-29 03:48:09,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:09,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571426944] [2020-10-29 03:48:09,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:09,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:09,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:09,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:11,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:14,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:14,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-29 03:48:14,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:14,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 03:48:14,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:14,499 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:14,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 23 [2020-10-29 03:48:14,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:14,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 03:48:14,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:15,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:15,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:15,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:15,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:15,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:15,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:15,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:15,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:15,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:15,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:15,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:15,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:15,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 03:48:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:15,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:15,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:15,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:15,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:15,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:15,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:15,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:15,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:15,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:15,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:48:15,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:15,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:15,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:15,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:15,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:15,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:15,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:15,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:15,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:15,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:15,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 03:48:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:15,122 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:15,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:15,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:15,124 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:15,124 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:15,124 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:15,124 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:15,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:15,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:15,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:15,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:15,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:48:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:15,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:15,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:15,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:15,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:15,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:15,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:15,131 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:15,131 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:15,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:15,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:15,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 03:48:15,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:15,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:15,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:15,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:15,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:15,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:15,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:15,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:15,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:15,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:15,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:48:15,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:15,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:15,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:15,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:15,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:15,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:15,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:15,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:15,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:15,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:15,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:15,146 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:15,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 03:48:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:15,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:15,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:15,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:15,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:15,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:15,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:15,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:15,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:15,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:15,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:15,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:15,181 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 14 proven. 122 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-29 03:48:15,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571426944] [2020-10-29 03:48:15,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:15,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2020-10-29 03:48:15,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474091160] [2020-10-29 03:48:15,182 INFO L461 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-10-29 03:48:15,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:15,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-10-29 03:48:15,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=548, Unknown=0, NotChecked=0, Total=600 [2020-10-29 03:48:15,183 INFO L87 Difference]: Start difference. First operand 114 states and 124 transitions. Second operand 25 states. [2020-10-29 03:48:16,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:16,611 INFO L93 Difference]: Finished difference Result 154 states and 174 transitions. [2020-10-29 03:48:16,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 03:48:16,612 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 83 [2020-10-29 03:48:16,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:16,613 INFO L225 Difference]: With dead ends: 154 [2020-10-29 03:48:16,613 INFO L226 Difference]: Without dead ends: 150 [2020-10-29 03:48:16,614 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=122, Invalid=1210, Unknown=0, NotChecked=0, Total=1332 [2020-10-29 03:48:16,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-10-29 03:48:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 115. [2020-10-29 03:48:16,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-10-29 03:48:16,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 126 transitions. [2020-10-29 03:48:16,637 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 126 transitions. Word has length 83 [2020-10-29 03:48:16,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:16,637 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 126 transitions. [2020-10-29 03:48:16,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-10-29 03:48:16,638 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 126 transitions. [2020-10-29 03:48:16,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-10-29 03:48:16,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:16,639 INFO L422 BasicCegarLoop]: trace histogram [10, 8, 8, 8, 8, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:16,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-10-29 03:48:16,639 INFO L429 AbstractCegarLoop]: === Iteration 38 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:16,640 INFO L82 PathProgramCache]: Analyzing trace with hash -423180334, now seen corresponding path program 32 times [2020-10-29 03:48:16,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:16,640 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557401184] [2020-10-29 03:48:16,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:16,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:16,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:16,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:18,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:21,662 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:21,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 108 [2020-10-29 03:48:21,663 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:21,663 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 03:48:21,663 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:21,663 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:21,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 03:48:21,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:21,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-29 03:48:21,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:22,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:22,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:22,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:22,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:22,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:22,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:22,384 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:22,384 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:22,384 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:22,384 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:22,385 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:22,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:48:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:22,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:22,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:22,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:22,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:22,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:22,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:22,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:22,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:22,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:22,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:48:22,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:22,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:22,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:22,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:22,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:22,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:22,393 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:22,393 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:22,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:22,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:48:22,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:22,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:22,397 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:22,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:22,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:22,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:22,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:22,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:22,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:22,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:22,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:22,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:22,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 03:48:22,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:22,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:22,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:22,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:22,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:22,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:22,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:22,402 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:22,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:22,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:22,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:22,402 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:22,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:48:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:22,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:22,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:22,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:22,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:22,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:22,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:22,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:22,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:22,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:22,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 03:48:22,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:22,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:22,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:22,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:22,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:22,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:22,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:22,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:22,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:22,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:22,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:48:22,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:22,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:22,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:22,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:22,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:22,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:22,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:22,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:22,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:22,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:22,447 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 14 proven. 132 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2020-10-29 03:48:22,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557401184] [2020-10-29 03:48:22,448 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:22,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 03:48:22,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238796520] [2020-10-29 03:48:22,448 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 03:48:22,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:22,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 03:48:22,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=597, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:48:22,449 INFO L87 Difference]: Start difference. First operand 115 states and 126 transitions. Second operand 26 states. [2020-10-29 03:48:23,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:23,835 INFO L93 Difference]: Finished difference Result 127 states and 138 transitions. [2020-10-29 03:48:23,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-29 03:48:23,836 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 84 [2020-10-29 03:48:23,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:23,838 INFO L225 Difference]: With dead ends: 127 [2020-10-29 03:48:23,838 INFO L226 Difference]: Without dead ends: 123 [2020-10-29 03:48:23,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=107, Invalid=1299, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 03:48:23,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-10-29 03:48:23,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 92. [2020-10-29 03:48:23,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 92 states. [2020-10-29 03:48:23,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 94 transitions. [2020-10-29 03:48:23,858 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 94 transitions. Word has length 84 [2020-10-29 03:48:23,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:23,858 INFO L481 AbstractCegarLoop]: Abstraction has 92 states and 94 transitions. [2020-10-29 03:48:23,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 03:48:23,858 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 94 transitions. [2020-10-29 03:48:23,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-29 03:48:23,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:23,859 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:23,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-10-29 03:48:23,860 INFO L429 AbstractCegarLoop]: === Iteration 39 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:23,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:23,860 INFO L82 PathProgramCache]: Analyzing trace with hash 718318690, now seen corresponding path program 33 times [2020-10-29 03:48:23,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:23,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475969673] [2020-10-29 03:48:23,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:23,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:23,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:23,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:26,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:26,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-29 03:48:26,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:48:26,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2870 [2020-10-29 03:48:26,748 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:26,748 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:26,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 03:48:26,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:26,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 03:48:26,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:26,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:26,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:26,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:26,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:26,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:26,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:26,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:26,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:26,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:26,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:26,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:26,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:26,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 03:48:26,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:26,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:26,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:26,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:26,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:26,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:26,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:26,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:26,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:26,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:26,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 03:48:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:26,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:26,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:26,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:26,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:26,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:26,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:26,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:26,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:26,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:26,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:48:26,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:26,849 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:26,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:26,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:26,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:26,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:26,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:26,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:26,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:26,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:26,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:26,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:26,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 03:48:26,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:26,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:26,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:26,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:26,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:26,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:26,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:26,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:26,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:26,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:26,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:48:26,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:26,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:26,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:26,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:26,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:26,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:26,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:26,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:26,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:26,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:26,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:26,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:26,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 03:48:26,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:26,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:26,858 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:26,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:26,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:26,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:26,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:26,859 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:26,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:26,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:26,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:26,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:26,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:48:26,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:26,860 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:26,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:26,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:26,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:26,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:26,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:26,862 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:26,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:26,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:26,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 03:48:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:26,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:26,865 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:26,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:26,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:26,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:26,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:26,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:26,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:26,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:26,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:26,866 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:26,873 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2020-10-29 03:48:26,873 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475969673] [2020-10-29 03:48:26,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:26,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:48:26,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083921970] [2020-10-29 03:48:26,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:48:26,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:26,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:48:26,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:48:26,875 INFO L87 Difference]: Start difference. First operand 92 states and 94 transitions. Second operand 12 states. [2020-10-29 03:48:27,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:27,018 INFO L93 Difference]: Finished difference Result 170 states and 174 transitions. [2020-10-29 03:48:27,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 03:48:27,019 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 89 [2020-10-29 03:48:27,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:27,020 INFO L225 Difference]: With dead ends: 170 [2020-10-29 03:48:27,020 INFO L226 Difference]: Without dead ends: 93 [2020-10-29 03:48:27,021 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:48:27,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2020-10-29 03:48:27,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2020-10-29 03:48:27,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-29 03:48:27,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 95 transitions. [2020-10-29 03:48:27,039 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 95 transitions. Word has length 89 [2020-10-29 03:48:27,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:27,039 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 95 transitions. [2020-10-29 03:48:27,040 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:48:27,040 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 95 transitions. [2020-10-29 03:48:27,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 03:48:27,041 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:27,041 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:27,041 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-10-29 03:48:27,041 INFO L429 AbstractCegarLoop]: === Iteration 40 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:27,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:27,042 INFO L82 PathProgramCache]: Analyzing trace with hash 1419860244, now seen corresponding path program 34 times [2020-10-29 03:48:27,042 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:27,042 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1117558385] [2020-10-29 03:48:27,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:27,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:27,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:27,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 03:48:30,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:48:30,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3082 [2020-10-29 03:48:30,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 10 [2020-10-29 03:48:30,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 03:48:30,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-29 03:48:30,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:30,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:30,240 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,240 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:30,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:30,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:30,241 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:30,241 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-29 03:48:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,243 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:30,244 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:30,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:30,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:30,245 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:48:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,247 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:30,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:30,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:30,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:30,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 03:48:30,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:30,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:30,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:30,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:30,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:48:30,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,252 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:30,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,253 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:30,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:30,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:30,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 03:48:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:30,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:30,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:30,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:30,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:48:30,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:30,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:30,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:30,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:30,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 03:48:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:30,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:30,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:30,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:30,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 03:48:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:30,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:30,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:30,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:30,264 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:30,264 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:30,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:30,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:30,264 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:30,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:30,271 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 16 proven. 36 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2020-10-29 03:48:30,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1117558385] [2020-10-29 03:48:30,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:30,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-10-29 03:48:30,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925213101] [2020-10-29 03:48:30,272 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-29 03:48:30,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:30,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-29 03:48:30,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:48:30,273 INFO L87 Difference]: Start difference. First operand 93 states and 95 transitions. Second operand 12 states. [2020-10-29 03:48:30,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:30,500 INFO L93 Difference]: Finished difference Result 165 states and 169 transitions. [2020-10-29 03:48:30,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-29 03:48:30,501 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 90 [2020-10-29 03:48:30,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:30,502 INFO L225 Difference]: With dead ends: 165 [2020-10-29 03:48:30,502 INFO L226 Difference]: Without dead ends: 98 [2020-10-29 03:48:30,503 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2020-10-29 03:48:30,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-10-29 03:48:30,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 94. [2020-10-29 03:48:30,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-10-29 03:48:30,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 96 transitions. [2020-10-29 03:48:30,519 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 96 transitions. Word has length 90 [2020-10-29 03:48:30,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:30,520 INFO L481 AbstractCegarLoop]: Abstraction has 94 states and 96 transitions. [2020-10-29 03:48:30,520 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-29 03:48:30,520 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 96 transitions. [2020-10-29 03:48:30,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-29 03:48:30,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:30,521 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:30,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-10-29 03:48:30,521 INFO L429 AbstractCegarLoop]: === Iteration 41 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:30,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:30,522 INFO L82 PathProgramCache]: Analyzing trace with hash 80063105, now seen corresponding path program 35 times [2020-10-29 03:48:30,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:30,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [532919712] [2020-10-29 03:48:30,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:30,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:30,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:32,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:35,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:35,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-10-29 03:48:35,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:35,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 03:48:35,553 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:35,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:35,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 24 [2020-10-29 03:48:35,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:35,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-29 03:48:35,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:36,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:36,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:36,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:36,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:36,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:36,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:36,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:36,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:36,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:36,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:36,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:36,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:36,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:48:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:36,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:36,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:36,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:36,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:36,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:36,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:36,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:36,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:36,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:36,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:36,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:36,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:48:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:36,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:36,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:36,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:36,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:36,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:36,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:36,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:36,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:36,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:36,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:48:36,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:36,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:36,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:36,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:36,187 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:36,187 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:36,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:36,188 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:36,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:36,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:36,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:36,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:36,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 03:48:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:36,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:36,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:36,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:36,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:36,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:36,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:36,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:36,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:36,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:36,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:36,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 03:48:36,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:48:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:36,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:36,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:36,200 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:36,200 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:36,200 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:36,200 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:36,200 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:36,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:36,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:36,201 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:36,201 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:36,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 03:48:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:36,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:36,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:36,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:36,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:36,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:36,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:36,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:36,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:36,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:36,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:36,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:36,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:48:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:36,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:36,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:36,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:36,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:36,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:36,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:36,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:36,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:36,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:36,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:36,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:36,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 03:48:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:36,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:36,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:36,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:36,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:36,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:36,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:36,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:36,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:36,250 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 16 proven. 145 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-29 03:48:36,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [532919712] [2020-10-29 03:48:36,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:36,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2020-10-29 03:48:36,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933847784] [2020-10-29 03:48:36,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-10-29 03:48:36,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:36,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-10-29 03:48:36,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=599, Unknown=0, NotChecked=0, Total=650 [2020-10-29 03:48:36,252 INFO L87 Difference]: Start difference. First operand 94 states and 96 transitions. Second operand 26 states. [2020-10-29 03:48:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:37,593 INFO L93 Difference]: Finished difference Result 134 states and 146 transitions. [2020-10-29 03:48:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 03:48:37,594 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 91 [2020-10-29 03:48:37,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:37,595 INFO L225 Difference]: With dead ends: 134 [2020-10-29 03:48:37,595 INFO L226 Difference]: Without dead ends: 130 [2020-10-29 03:48:37,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=104, Invalid=1302, Unknown=0, NotChecked=0, Total=1406 [2020-10-29 03:48:37,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-29 03:48:37,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 126. [2020-10-29 03:48:37,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-10-29 03:48:37,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 137 transitions. [2020-10-29 03:48:37,629 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 137 transitions. Word has length 91 [2020-10-29 03:48:37,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:37,630 INFO L481 AbstractCegarLoop]: Abstraction has 126 states and 137 transitions. [2020-10-29 03:48:37,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-10-29 03:48:37,630 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 137 transitions. [2020-10-29 03:48:37,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-29 03:48:37,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:37,631 INFO L422 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:37,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-10-29 03:48:37,632 INFO L429 AbstractCegarLoop]: === Iteration 42 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:37,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:37,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1496024756, now seen corresponding path program 36 times [2020-10-29 03:48:37,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:37,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2104536756] [2020-10-29 03:48:37,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:37,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:37,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:40,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:42,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:42,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-29 03:48:42,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:42,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-29 03:48:42,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:42,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:42,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 25 [2020-10-29 03:48:42,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:42,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-10-29 03:48:42,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:43,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:43,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:43,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:43,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:43,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:43,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:43,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:43,392 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:43,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:43,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:43,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:43,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:43,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-10-29 03:48:43,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:43,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:43,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:43,400 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:43,400 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:43,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:43,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:43,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:43,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:43,401 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:43,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:48:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:43,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:43,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:43,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:43,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:43,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:43,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:43,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:43,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:43,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:43,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:43,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 03:48:43,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:43,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:43,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:43,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:43,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:43,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:43,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:43,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:43,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:43,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:43,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:48:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:43,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:43,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:43,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:43,419 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:43,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:43,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:43,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:43,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:43,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 03:48:43,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:43,423 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:43,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:43,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:43,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:43,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:43,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:43,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:43,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:43,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:43,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:43,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:43,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 03:48:43,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:43,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:43,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:43,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:43,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:43,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:43,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:43,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:43,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:43,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:43,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:43,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:43,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 03:48:43,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:43,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:43,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:43,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:43,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:43,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:43,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:43,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:43,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:43,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:43,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:43,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:43,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 03:48:43,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:43,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:43,455 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:43,455 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:43,455 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:43,455 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:43,455 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:43,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:43,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:43,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:43,494 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 16 proven. 155 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-29 03:48:43,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2104536756] [2020-10-29 03:48:43,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:43,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2020-10-29 03:48:43,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504190698] [2020-10-29 03:48:43,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-10-29 03:48:43,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:43,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-10-29 03:48:43,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=649, Unknown=0, NotChecked=0, Total=702 [2020-10-29 03:48:43,499 INFO L87 Difference]: Start difference. First operand 126 states and 137 transitions. Second operand 27 states. [2020-10-29 03:48:45,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:45,248 INFO L93 Difference]: Finished difference Result 169 states and 191 transitions. [2020-10-29 03:48:45,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-29 03:48:45,249 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 92 [2020-10-29 03:48:45,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:45,251 INFO L225 Difference]: With dead ends: 169 [2020-10-29 03:48:45,251 INFO L226 Difference]: Without dead ends: 165 [2020-10-29 03:48:45,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=129, Invalid=1431, Unknown=0, NotChecked=0, Total=1560 [2020-10-29 03:48:45,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2020-10-29 03:48:45,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 127. [2020-10-29 03:48:45,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127 states. [2020-10-29 03:48:45,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 139 transitions. [2020-10-29 03:48:45,283 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 139 transitions. Word has length 92 [2020-10-29 03:48:45,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:45,283 INFO L481 AbstractCegarLoop]: Abstraction has 127 states and 139 transitions. [2020-10-29 03:48:45,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-10-29 03:48:45,284 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 139 transitions. [2020-10-29 03:48:45,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2020-10-29 03:48:45,285 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:45,285 INFO L422 BasicCegarLoop]: trace histogram [11, 9, 9, 9, 9, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:45,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-10-29 03:48:45,285 INFO L429 AbstractCegarLoop]: === Iteration 43 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:45,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:45,285 INFO L82 PathProgramCache]: Analyzing trace with hash -1853804319, now seen corresponding path program 37 times [2020-10-29 03:48:45,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:45,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300096963] [2020-10-29 03:48:45,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:45,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:45,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:47,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:50,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:50,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-29 03:48:50,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:48:50,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5028 [2020-10-29 03:48:50,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:50,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 03:48:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:48:50,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-29 03:48:50,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:51,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:51,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:51,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:51,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:51,184 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:51,184 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:51,184 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:51,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:51,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:51,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:51,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:51,185 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:51,185 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:51,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:48:51,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:51,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:51,191 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:51,191 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:51,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:51,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:48:51,192 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:51,192 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:51,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:51,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:51,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:51,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:51,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 03:48:51,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:51,195 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:51,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:51,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:51,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:51,198 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:51,198 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:51,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:51,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:51,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:48:51,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:51,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:51,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:51,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:51,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:51,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:51,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:51,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:51,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:51,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:51,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 03:48:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:51,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:51,208 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:51,208 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:51,208 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:51,208 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:48:51,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:51,208 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:51,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:51,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:51,209 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:51,209 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:51,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:48:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:51,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:51,214 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:51,214 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:51,214 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:51,214 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:51,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:51,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:51,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:51,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:51,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:51,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:51,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 03:48:51,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:51,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:51,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:51,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:51,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:51,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:51,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:51,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:51,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:51,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:51,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:48:51,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:51,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:51,226 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:51,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:51,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:51,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:51,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:51,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:51,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:51,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:51,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:51,227 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:51,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 03:48:51,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:51,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:51,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:51,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:51,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:51,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:51,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:51,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:51,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:48:51,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:51,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:48:51,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:51,259 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 16 proven. 166 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-10-29 03:48:51,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1300096963] [2020-10-29 03:48:51,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:51,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-29 03:48:51,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713987736] [2020-10-29 03:48:51,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-29 03:48:51,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:51,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-29 03:48:51,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=699, Unknown=0, NotChecked=0, Total=756 [2020-10-29 03:48:51,261 INFO L87 Difference]: Start difference. First operand 127 states and 139 transitions. Second operand 28 states. [2020-10-29 03:48:53,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:53,098 INFO L93 Difference]: Finished difference Result 139 states and 151 transitions. [2020-10-29 03:48:53,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-29 03:48:53,098 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 93 [2020-10-29 03:48:53,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:53,100 INFO L225 Difference]: With dead ends: 139 [2020-10-29 03:48:53,100 INFO L226 Difference]: Without dead ends: 135 [2020-10-29 03:48:53,101 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=133, Invalid=1507, Unknown=0, NotChecked=0, Total=1640 [2020-10-29 03:48:53,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-10-29 03:48:53,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 101. [2020-10-29 03:48:53,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-10-29 03:48:53,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 103 transitions. [2020-10-29 03:48:53,120 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 103 transitions. Word has length 93 [2020-10-29 03:48:53,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:53,121 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 103 transitions. [2020-10-29 03:48:53,121 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-29 03:48:53,121 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 103 transitions. [2020-10-29 03:48:53,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-29 03:48:53,122 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:53,122 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:53,122 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-10-29 03:48:53,122 INFO L429 AbstractCegarLoop]: === Iteration 44 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:53,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:53,122 INFO L82 PathProgramCache]: Analyzing trace with hash -174077709, now seen corresponding path program 38 times [2020-10-29 03:48:53,123 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:53,123 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486262964] [2020-10-29 03:48:53,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:53,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:53,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:53,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:56,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:56,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 126 [2020-10-29 03:48:56,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:48:56,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3808 [2020-10-29 03:48:56,949 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:56,949 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:56,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-29 03:48:56,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-29 03:48:56,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-29 03:48:56,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:57,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:48:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:57,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:48:57,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:57,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:48:57,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:57,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:48:57,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:57,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:57,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 03:48:57,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:57,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:57,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:57,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:57,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:57,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:57,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:57,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:48:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:57,072 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:57,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:57,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:57,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:57,072 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:57,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:57,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:57,072 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:57,073 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:57,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:48:57,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:57,075 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:57,075 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:57,075 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:57,075 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:57,076 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:57,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:57,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:57,076 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:57,076 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:57,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 03:48:57,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:57,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:57,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:57,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:57,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:57,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:57,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:57,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:57,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 13 [2020-10-29 03:48:57,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:48:57,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:57,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:57,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:57,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:57,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:57,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:57,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:57,096 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:57,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 03:48:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:57,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:57,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:57,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:57,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:57,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:57,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:57,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:57,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:57,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:57,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:48:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:57,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:57,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:57,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:57,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:57,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:57,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:57,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:57,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:57,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:57,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 03:48:57,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:57,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:57,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:57,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:57,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:57,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:57,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:57,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:57,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 03:48:57,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,106 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:48:57,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:48:57,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:48:57,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:48:57,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:48:57,107 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:48:57,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:48:57,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:48:57,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:48:57,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:48:57,113 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 18 proven. 45 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2020-10-29 03:48:57,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486262964] [2020-10-29 03:48:57,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:48:57,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-29 03:48:57,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055839322] [2020-10-29 03:48:57,113 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-29 03:48:57,113 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:48:57,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-29 03:48:57,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-29 03:48:57,114 INFO L87 Difference]: Start difference. First operand 101 states and 103 transitions. Second operand 13 states. [2020-10-29 03:48:57,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:48:57,395 INFO L93 Difference]: Finished difference Result 192 states and 198 transitions. [2020-10-29 03:48:57,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-29 03:48:57,396 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 98 [2020-10-29 03:48:57,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:48:57,397 INFO L225 Difference]: With dead ends: 192 [2020-10-29 03:48:57,397 INFO L226 Difference]: Without dead ends: 107 [2020-10-29 03:48:57,398 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=68, Invalid=88, Unknown=0, NotChecked=0, Total=156 [2020-10-29 03:48:57,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-10-29 03:48:57,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2020-10-29 03:48:57,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-10-29 03:48:57,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 105 transitions. [2020-10-29 03:48:57,421 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 105 transitions. Word has length 98 [2020-10-29 03:48:57,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:48:57,421 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 105 transitions. [2020-10-29 03:48:57,421 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-29 03:48:57,422 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 105 transitions. [2020-10-29 03:48:57,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 03:48:57,422 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:48:57,422 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:48:57,422 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-10-29 03:48:57,423 INFO L429 AbstractCegarLoop]: === Iteration 45 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:48:57,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:48:57,423 INFO L82 PathProgramCache]: Analyzing trace with hash 1593070482, now seen corresponding path program 39 times [2020-10-29 03:48:57,423 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:48:57,423 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [445302939] [2020-10-29 03:48:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:48:57,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:48:57,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:48:57,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:00,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:02,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:02,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-29 03:49:02,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:49:02,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-29 03:49:02,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:02,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:02,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 26 [2020-10-29 03:49:02,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:02,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-29 03:49:02,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:03,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:03,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:03,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:03,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:03,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:03,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:03,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:03,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:03,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:03,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:03,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:49:03,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:03,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:03,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:03,249 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:03,249 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:03,249 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:03,249 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:03,250 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:03,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:03,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:03,250 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:03,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:03,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 03:49:03,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:03,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:03,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:03,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:03,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:03,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:03,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:03,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:03,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:03,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:03,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:03,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:03,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:49:03,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:03,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:03,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:03,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:03,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:03,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:03,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:03,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:03,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:03,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 03:49:03,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:03,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:03,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:03,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:03,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:03,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:03,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:03,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:03,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:03,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:49:03,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:03,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:03,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:03,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:03,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:03,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:03,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:03,274 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:03,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:03,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:03,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 03:49:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:03,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:03,279 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:03,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:03,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:03,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:03,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:03,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:03,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:03,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:03,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:03,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:03,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:49:03,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:03,284 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:03,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:03,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:03,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:03,286 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:03,286 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:03,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:03,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:03,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:03,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 03:49:03,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:03,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:03,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:03,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:03,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:03,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:03,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:03,293 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:03,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:03,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:03,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 03:49:03,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:03,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:03,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:03,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:03,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:03,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:03,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:03,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:03,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:03,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:03,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:03,343 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 18 proven. 181 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-29 03:49:03,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [445302939] [2020-10-29 03:49:03,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:03,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2020-10-29 03:49:03,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350300711] [2020-10-29 03:49:03,344 INFO L461 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-10-29 03:49:03,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:03,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-10-29 03:49:03,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=700, Unknown=0, NotChecked=0, Total=756 [2020-10-29 03:49:03,345 INFO L87 Difference]: Start difference. First operand 103 states and 105 transitions. Second operand 28 states. [2020-10-29 03:49:05,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:05,222 INFO L93 Difference]: Finished difference Result 146 states and 159 transitions. [2020-10-29 03:49:05,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-29 03:49:05,222 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 100 [2020-10-29 03:49:05,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:05,224 INFO L225 Difference]: With dead ends: 146 [2020-10-29 03:49:05,224 INFO L226 Difference]: Without dead ends: 142 [2020-10-29 03:49:05,225 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=129, Invalid=1593, Unknown=0, NotChecked=0, Total=1722 [2020-10-29 03:49:05,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-10-29 03:49:05,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 138. [2020-10-29 03:49:05,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2020-10-29 03:49:05,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 150 transitions. [2020-10-29 03:49:05,261 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 150 transitions. Word has length 100 [2020-10-29 03:49:05,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:05,261 INFO L481 AbstractCegarLoop]: Abstraction has 138 states and 150 transitions. [2020-10-29 03:49:05,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-10-29 03:49:05,261 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 150 transitions. [2020-10-29 03:49:05,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-10-29 03:49:05,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:05,262 INFO L422 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:05,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-10-29 03:49:05,262 INFO L429 AbstractCegarLoop]: === Iteration 46 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:05,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:05,263 INFO L82 PathProgramCache]: Analyzing trace with hash -884791647, now seen corresponding path program 40 times [2020-10-29 03:49:05,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:05,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528881515] [2020-10-29 03:49:05,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:05,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:05,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:05,353 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:08,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:10,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:10,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-29 03:49:10,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:49:10,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-10-29 03:49:10,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:10,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 27 [2020-10-29 03:49:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:10,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-29 03:49:10,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:11,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:11,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:11,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:11,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:11,119 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:11,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:11,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:11,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:11,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:11,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:11,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:11,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:11,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:11,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:49:11,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:11,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:11,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:11,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:11,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:11,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:11,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:11,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:11,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:11,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:11,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:49:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:11,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:11,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:11,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:11,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:11,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:11,132 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:11,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:11,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:11,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:11,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:11,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:11,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:49:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:11,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:11,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:11,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:11,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:11,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:11,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:11,138 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:11,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:11,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:11,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:49:11,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:11,142 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:11,143 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:11,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:11,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:11,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:11,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:11,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:11,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:11,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:11,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:11,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:11,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 03:49:11,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:11,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:11,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:11,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:11,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:11,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:11,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:11,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:11,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:11,149 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:11,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:49:11,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:11,152 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:11,154 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:11,154 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:11,154 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:11,154 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:11,154 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:11,155 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:11,155 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:11,155 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:11,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 03:49:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:11,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:11,160 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:11,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:11,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:11,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:11,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:11,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:11,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:11,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:11,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:11,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:11,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 03:49:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:11,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:11,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:11,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:11,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:11,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:11,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:11,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:11,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:11,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:11,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:11,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:11,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 03:49:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:11,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:11,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:11,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:11,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:11,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:11,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:11,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:11,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:11,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:11,204 INFO L134 CoverageAnalysis]: Checked inductivity of 409 backedges. 18 proven. 192 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-29 03:49:11,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528881515] [2020-10-29 03:49:11,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:11,204 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2020-10-29 03:49:11,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94549378] [2020-10-29 03:49:11,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 29 states [2020-10-29 03:49:11,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:11,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2020-10-29 03:49:11,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=755, Unknown=0, NotChecked=0, Total=812 [2020-10-29 03:49:11,206 INFO L87 Difference]: Start difference. First operand 138 states and 150 transitions. Second operand 29 states. [2020-10-29 03:49:13,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:13,270 INFO L93 Difference]: Finished difference Result 184 states and 208 transitions. [2020-10-29 03:49:13,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-10-29 03:49:13,272 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 101 [2020-10-29 03:49:13,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:13,273 INFO L225 Difference]: With dead ends: 184 [2020-10-29 03:49:13,273 INFO L226 Difference]: Without dead ends: 180 [2020-10-29 03:49:13,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=139, Invalid=1667, Unknown=0, NotChecked=0, Total=1806 [2020-10-29 03:49:13,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2020-10-29 03:49:13,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 139. [2020-10-29 03:49:13,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-10-29 03:49:13,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 152 transitions. [2020-10-29 03:49:13,310 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 152 transitions. Word has length 101 [2020-10-29 03:49:13,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:13,310 INFO L481 AbstractCegarLoop]: Abstraction has 139 states and 152 transitions. [2020-10-29 03:49:13,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 29 states. [2020-10-29 03:49:13,311 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 152 transitions. [2020-10-29 03:49:13,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-29 03:49:13,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:13,312 INFO L422 BasicCegarLoop]: trace histogram [12, 10, 10, 10, 10, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:13,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-10-29 03:49:13,312 INFO L429 AbstractCegarLoop]: === Iteration 47 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:13,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:13,312 INFO L82 PathProgramCache]: Analyzing trace with hash -389106318, now seen corresponding path program 41 times [2020-10-29 03:49:13,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:13,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986781496] [2020-10-29 03:49:13,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:13,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:13,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:17,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:18,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:18,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-29 03:49:18,336 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:49:18,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-29 03:49:18,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:18,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:18,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 03:49:18,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:18,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-29 03:49:18,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:19,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:19,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:19,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:19,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:19,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:19,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:19,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:19,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:19,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:19,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:19,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:19,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:19,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:49:19,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:19,249 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:19,250 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:19,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:19,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:19,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:19,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:19,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:19,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:19,251 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:19,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 03:49:19,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:19,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:19,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:19,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:19,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:19,256 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:19,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:19,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:19,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:19,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:49:19,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:19,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:19,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:19,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:19,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:19,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:19,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:19,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:19,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:19,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:19,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:19,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:19,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 03:49:19,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:19,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:19,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:19,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:19,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:19,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:19,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:19,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:19,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:19,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:19,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:49:19,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:19,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:19,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:19,271 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:19,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:19,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:19,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:19,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:19,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:19,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:19,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 03:49:19,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:19,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:19,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:19,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:19,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:19,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:19,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:19,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:19,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:19,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:19,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:19,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:19,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:49:19,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:19,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:19,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:19,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:19,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:19,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:19,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:19,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:19,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:19,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:19,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:19,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:19,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 03:49:19,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:19,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:19,285 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:19,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:19,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:19,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:19,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:19,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:19,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:19,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:19,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:19,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:19,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 03:49:19,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:19,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:19,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:19,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:19,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:19,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:19,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:19,290 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:19,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:19,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:19,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:19,290 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:19,320 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 18 proven. 204 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2020-10-29 03:49:19,320 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986781496] [2020-10-29 03:49:19,320 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:19,320 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-29 03:49:19,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591241416] [2020-10-29 03:49:19,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-29 03:49:19,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:19,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-29 03:49:19,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=806, Unknown=0, NotChecked=0, Total=870 [2020-10-29 03:49:19,321 INFO L87 Difference]: Start difference. First operand 139 states and 152 transitions. Second operand 30 states. [2020-10-29 03:49:21,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:21,394 INFO L93 Difference]: Finished difference Result 151 states and 164 transitions. [2020-10-29 03:49:21,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-10-29 03:49:21,400 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 102 [2020-10-29 03:49:21,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:21,402 INFO L225 Difference]: With dead ends: 151 [2020-10-29 03:49:21,402 INFO L226 Difference]: Without dead ends: 147 [2020-10-29 03:49:21,403 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=146, Invalid=1746, Unknown=0, NotChecked=0, Total=1892 [2020-10-29 03:49:21,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-10-29 03:49:21,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 110. [2020-10-29 03:49:21,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-10-29 03:49:21,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 112 transitions. [2020-10-29 03:49:21,428 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 112 transitions. Word has length 102 [2020-10-29 03:49:21,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:21,430 INFO L481 AbstractCegarLoop]: Abstraction has 110 states and 112 transitions. [2020-10-29 03:49:21,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-29 03:49:21,430 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 112 transitions. [2020-10-29 03:49:21,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-29 03:49:21,432 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:21,432 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:21,432 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-10-29 03:49:21,433 INFO L429 AbstractCegarLoop]: === Iteration 48 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:21,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:21,433 INFO L82 PathProgramCache]: Analyzing trace with hash -129697086, now seen corresponding path program 42 times [2020-10-29 03:49:21,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:21,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1577545812] [2020-10-29 03:49:21,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:21,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:21,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:21,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-10-29 03:49:26,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:49:26,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-29 03:49:26,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 03:49:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:26,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 03:49:26,479 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:26,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:26,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,606 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:26,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:26,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,607 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 03:49:26,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:26,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:26,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-10-29 03:49:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,611 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,612 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:26,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,612 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:26,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,612 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-10-29 03:49:26,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,615 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,615 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,615 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:26,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,615 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:26,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-29 03:49:26,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,618 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:26,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,619 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:26,619 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 03:49:26,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,621 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,621 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,622 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:26,622 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,622 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,622 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:26,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-29 03:49:26,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,624 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,625 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,625 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,625 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,626 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:26,626 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,626 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:26,626 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-29 03:49:26,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,628 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:26,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,629 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:26,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-10-29 03:49:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,630 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,631 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:26,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,631 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:26,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-29 03:49:26,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:26,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:26,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-29 03:49:26,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,636 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:26,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:26,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:26,637 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:26,637 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:26,637 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:26,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:26,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:26,637 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:26,637 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:26,643 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 20 proven. 55 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2020-10-29 03:49:26,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1577545812] [2020-10-29 03:49:26,644 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:26,644 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 03:49:26,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544800231] [2020-10-29 03:49:26,644 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 03:49:26,644 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:26,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 03:49:26,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:49:26,645 INFO L87 Difference]: Start difference. First operand 110 states and 112 transitions. Second operand 14 states. [2020-10-29 03:49:26,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:26,831 INFO L93 Difference]: Finished difference Result 204 states and 208 transitions. [2020-10-29 03:49:26,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:49:26,832 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 107 [2020-10-29 03:49:26,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:26,833 INFO L225 Difference]: With dead ends: 204 [2020-10-29 03:49:26,833 INFO L226 Difference]: Without dead ends: 111 [2020-10-29 03:49:26,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:49:26,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-10-29 03:49:26,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-10-29 03:49:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-10-29 03:49:26,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 113 transitions. [2020-10-29 03:49:26,857 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 113 transitions. Word has length 107 [2020-10-29 03:49:26,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:26,857 INFO L481 AbstractCegarLoop]: Abstraction has 111 states and 113 transitions. [2020-10-29 03:49:26,857 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 03:49:26,857 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 113 transitions. [2020-10-29 03:49:26,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-10-29 03:49:26,858 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:26,858 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:26,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-10-29 03:49:26,858 INFO L429 AbstractCegarLoop]: === Iteration 49 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:26,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:26,859 INFO L82 PathProgramCache]: Analyzing trace with hash -935682316, now seen corresponding path program 43 times [2020-10-29 03:49:26,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:26,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1061772121] [2020-10-29 03:49:26,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:26,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:26,949 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:31,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:31,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-10-29 03:49:31,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:49:31,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-10-29 03:49:31,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:31,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:31,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-29 03:49:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-29 03:49:31,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 03:49:31,880 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:32,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:32,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:32,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:32,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:32,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:32,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:32,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:32,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:32,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-29 03:49:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,036 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:32,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:32,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:32,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:49:32,037 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:32,037 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:32,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:32,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:32,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:32,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:49:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:32,043 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:32,043 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:32,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:32,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:32,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:32,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:32,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:49:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:32,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:32,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:32,053 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 03:49:32,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:32,053 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:32,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:32,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:32,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:32,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:49:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:32,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:32,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:32,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:32,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:32,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:32,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:32,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:32,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:32,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 03:49:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,066 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:32,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:32,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:32,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:32,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:32,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:32,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:32,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:32,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:32,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:49:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:32,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:32,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:32,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:49:32,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:32,079 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:32,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:32,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 03:49:32,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,081 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,082 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:32,082 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:32,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:32,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:32,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:32,083 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:32,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:32,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:32,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:32,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 03:49:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,086 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:32,086 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:32,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:32,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:32,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:32,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:32,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:32,087 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 03:49:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,093 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:32,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:32,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:32,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 03:49:32,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:32,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:32,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:32,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:32,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:32,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 03:49:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:32,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:32,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:32,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:32,098 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:32,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:32,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:32,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 476 backedges. 20 proven. 55 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2020-10-29 03:49:32,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1061772121] [2020-10-29 03:49:32,109 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:32,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-10-29 03:49:32,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385993023] [2020-10-29 03:49:32,111 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-29 03:49:32,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:32,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-29 03:49:32,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:49:32,112 INFO L87 Difference]: Start difference. First operand 111 states and 113 transitions. Second operand 14 states. [2020-10-29 03:49:32,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:32,364 INFO L93 Difference]: Finished difference Result 197 states and 201 transitions. [2020-10-29 03:49:32,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-29 03:49:32,365 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 108 [2020-10-29 03:49:32,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:32,366 INFO L225 Difference]: With dead ends: 197 [2020-10-29 03:49:32,366 INFO L226 Difference]: Without dead ends: 116 [2020-10-29 03:49:32,367 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2020-10-29 03:49:32,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-10-29 03:49:32,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 112. [2020-10-29 03:49:32,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-10-29 03:49:32,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 114 transitions. [2020-10-29 03:49:32,392 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 114 transitions. Word has length 108 [2020-10-29 03:49:32,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:32,392 INFO L481 AbstractCegarLoop]: Abstraction has 112 states and 114 transitions. [2020-10-29 03:49:32,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-29 03:49:32,392 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 114 transitions. [2020-10-29 03:49:32,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-10-29 03:49:32,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:32,393 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:32,393 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-10-29 03:49:32,393 INFO L429 AbstractCegarLoop]: === Iteration 50 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:32,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:32,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1792849183, now seen corresponding path program 44 times [2020-10-29 03:49:32,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:32,394 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1395423592] [2020-10-29 03:49:32,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:32,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:32,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:32,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:37,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:37,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:37,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 03:49:37,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:49:37,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-29 03:49:37,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:37,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:37,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 28 [2020-10-29 03:49:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:37,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 123 [2020-10-29 03:49:37,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:38,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:38,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,275 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,275 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:38,275 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:38,275 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:38,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,276 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:38,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:38,276 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-10-29 03:49:38,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:38,278 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,280 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:38,280 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:38,280 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:38,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,280 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:38,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:38,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 03:49:38,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:38,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:38,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:38,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:38,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,284 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:38,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:38,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:49:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:38,287 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,288 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:38,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:38,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:38,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,288 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:38,289 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:38,289 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 03:49:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:38,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,292 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,292 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:38,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:38,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:38,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,292 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:38,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:38,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:38,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:49:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:38,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,295 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,296 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:38,296 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:38,296 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:38,296 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,296 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:38,296 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:38,296 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 03:49:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:38,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,301 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:38,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:38,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:49:38,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:38,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:38,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:38,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:49:38,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:38,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:38,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:38,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:38,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:38,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:38,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:38,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 03:49:38,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:38,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:38,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:38,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:38,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:38,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:38,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:38,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 03:49:38,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:38,313 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,314 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:38,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:38,327 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:38,327 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,328 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:38,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:38,328 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:38,328 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 03:49:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:38,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:38,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:38,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:38,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:38,335 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:38,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:38,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:38,336 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:38,336 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:38,365 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 20 proven. 221 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-10-29 03:49:38,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1395423592] [2020-10-29 03:49:38,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:38,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2020-10-29 03:49:38,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295328101] [2020-10-29 03:49:38,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-10-29 03:49:38,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:38,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-10-29 03:49:38,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=812, Unknown=0, NotChecked=0, Total=870 [2020-10-29 03:49:38,368 INFO L87 Difference]: Start difference. First operand 112 states and 114 transitions. Second operand 30 states. [2020-10-29 03:49:40,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:40,288 INFO L93 Difference]: Finished difference Result 158 states and 172 transitions. [2020-10-29 03:49:40,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 03:49:40,295 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 109 [2020-10-29 03:49:40,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:40,297 INFO L225 Difference]: With dead ends: 158 [2020-10-29 03:49:40,297 INFO L226 Difference]: Without dead ends: 154 [2020-10-29 03:49:40,298 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=123, Invalid=1857, Unknown=0, NotChecked=0, Total=1980 [2020-10-29 03:49:40,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-10-29 03:49:40,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 150. [2020-10-29 03:49:40,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-10-29 03:49:40,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 163 transitions. [2020-10-29 03:49:40,328 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 163 transitions. Word has length 109 [2020-10-29 03:49:40,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:40,329 INFO L481 AbstractCegarLoop]: Abstraction has 150 states and 163 transitions. [2020-10-29 03:49:40,329 INFO L482 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-10-29 03:49:40,329 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 163 transitions. [2020-10-29 03:49:40,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2020-10-29 03:49:40,330 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:40,330 INFO L422 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:40,330 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-10-29 03:49:40,330 INFO L429 AbstractCegarLoop]: === Iteration 51 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:40,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:40,330 INFO L82 PathProgramCache]: Analyzing trace with hash 1699749012, now seen corresponding path program 45 times [2020-10-29 03:49:40,331 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:40,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178235916] [2020-10-29 03:49:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:40,358 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:40,400 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:45,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:45,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:45,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 140 [2020-10-29 03:49:45,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 03:49:45,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5096 [2020-10-29 03:49:45,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:45,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 29 [2020-10-29 03:49:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:45,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-29 03:49:45,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:46,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:46,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:46,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:46,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:46,432 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,432 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:46,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:46,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 03:49:46,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:46,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:46,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:46,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:46,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:46,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:46,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:46,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:49:46,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:46,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:46,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:46,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:46,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:46,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:46,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 03:49:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:46,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:46,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:46,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:46,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:46,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:46,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:46,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:49:46,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:46,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:46,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:46,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:46,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:46,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:46,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 03:49:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:46,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:46,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:46,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:46,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:46,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:46,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:46,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:49:46,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:46,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:46,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:46,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:46,456 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,456 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:46,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:46,456 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:46,456 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 03:49:46,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:46,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:46,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:46,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:46,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:46,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:46,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:46,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 03:49:46,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:46,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:46,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:46,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:46,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:46,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:46,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 03:49:46,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:46,467 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:46,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:46,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:46,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:46,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:46,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:46,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 03:49:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:46,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:46,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:46,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:46,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:46,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:46,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:46,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:46,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 03:49:46,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:46,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 03:49:46,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:46,505 INFO L134 CoverageAnalysis]: Checked inductivity of 499 backedges. 20 proven. 233 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-10-29 03:49:46,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178235916] [2020-10-29 03:49:46,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:46,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2020-10-29 03:49:46,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612013855] [2020-10-29 03:49:46,506 INFO L461 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-10-29 03:49:46,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:46,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-10-29 03:49:46,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=869, Unknown=0, NotChecked=0, Total=930 [2020-10-29 03:49:46,507 INFO L87 Difference]: Start difference. First operand 150 states and 163 transitions. Second operand 31 states. [2020-10-29 03:49:48,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:48,863 INFO L93 Difference]: Finished difference Result 199 states and 225 transitions. [2020-10-29 03:49:48,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-29 03:49:48,863 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 110 [2020-10-29 03:49:48,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:48,865 INFO L225 Difference]: With dead ends: 199 [2020-10-29 03:49:48,865 INFO L226 Difference]: Without dead ends: 195 [2020-10-29 03:49:48,866 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=144, Invalid=1836, Unknown=0, NotChecked=0, Total=1980 [2020-10-29 03:49:48,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-10-29 03:49:48,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 151. [2020-10-29 03:49:48,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-10-29 03:49:48,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 165 transitions. [2020-10-29 03:49:48,907 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 165 transitions. Word has length 110 [2020-10-29 03:49:48,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:48,907 INFO L481 AbstractCegarLoop]: Abstraction has 151 states and 165 transitions. [2020-10-29 03:49:48,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-10-29 03:49:48,907 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 165 transitions. [2020-10-29 03:49:48,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-29 03:49:48,908 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:48,908 INFO L422 BasicCegarLoop]: trace histogram [13, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:48,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-10-29 03:49:48,909 INFO L429 AbstractCegarLoop]: === Iteration 52 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:48,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:48,909 INFO L82 PathProgramCache]: Analyzing trace with hash -1698856639, now seen corresponding path program 46 times [2020-10-29 03:49:48,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:48,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195401048] [2020-10-29 03:49:48,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:48,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:49,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:53,935 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:53,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-29 03:49:53,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:49:53,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-29 03:49:53,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:53,936 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-10-29 03:49:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:53,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-29 03:49:53,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,084 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:54,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:54,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:54,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:49:54,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:54,084 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:54,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:54,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:54,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-29 03:49:54,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,087 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:54,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:54,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:54,087 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:54,087 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:54,087 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:54,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:54,087 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:54,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:54,088 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-29 03:49:54,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,089 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:54,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:54,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:54,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:54,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:54,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:54,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:54,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 03:49:54,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,092 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:54,092 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:54,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:54,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:54,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:54,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:54,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:54,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:54,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:54,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 03:49:54,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,093 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:54,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:54,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:54,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:54,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:54,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:54,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:54,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 03:49:54,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,096 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:54,097 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:54,097 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:54,097 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:54,097 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:54,097 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:54,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:54,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:54,097 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:54,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-29 03:49:54,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:54,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:54,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:54,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:54,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:54,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:54,099 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-29 03:49:54,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:54,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:54,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:54,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:54,101 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:54,101 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:54,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:54,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:54,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:54,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-10-29 03:49:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:54,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:54,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:54,103 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:54,103 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:54,104 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:54,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:54,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:54,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:54,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 03:49:54,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:54,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:54,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:54,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:54,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:54,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:54,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:54,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-29 03:49:54,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:54,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:54,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:54,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:54,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:54,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:54,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:54,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:54,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:54,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:54,114 INFO L134 CoverageAnalysis]: Checked inductivity of 512 backedges. 20 proven. 66 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2020-10-29 03:49:54,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195401048] [2020-10-29 03:49:54,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:54,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-10-29 03:49:54,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392275177] [2020-10-29 03:49:54,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-29 03:49:54,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:54,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-29 03:49:54,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-29 03:49:54,116 INFO L87 Difference]: Start difference. First operand 151 states and 165 transitions. Second operand 15 states. [2020-10-29 03:49:54,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:54,310 INFO L93 Difference]: Finished difference Result 285 states and 313 transitions. [2020-10-29 03:49:54,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-29 03:49:54,310 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 111 [2020-10-29 03:49:54,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:54,311 INFO L225 Difference]: With dead ends: 285 [2020-10-29 03:49:54,311 INFO L226 Difference]: Without dead ends: 152 [2020-10-29 03:49:54,312 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2020-10-29 03:49:54,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2020-10-29 03:49:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2020-10-29 03:49:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-10-29 03:49:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 166 transitions. [2020-10-29 03:49:54,344 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 166 transitions. Word has length 111 [2020-10-29 03:49:54,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:54,344 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 166 transitions. [2020-10-29 03:49:54,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-29 03:49:54,345 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 166 transitions. [2020-10-29 03:49:54,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-29 03:49:54,345 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:54,346 INFO L422 BasicCegarLoop]: trace histogram [13, 12, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:54,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-10-29 03:49:54,346 INFO L429 AbstractCegarLoop]: === Iteration 53 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:54,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:54,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1912716403, now seen corresponding path program 47 times [2020-10-29 03:49:54,346 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:54,347 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1042773384] [2020-10-29 03:49:54,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:54,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:54,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,386 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-29 03:49:59,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:49:59,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 03:49:59,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,387 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-29 03:49:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:49:59,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 03:49:59,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:49:59,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,549 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,549 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:49:59,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:59,550 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,550 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:49:59,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:59,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-29 03:49:59,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:59,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:59,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:59,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:59,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:59,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:49:59,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,557 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:59,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:59,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:59,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:59,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:59,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 03:49:59,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,560 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,560 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:59,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:59,561 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:59,561 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,561 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:59,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:59,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:49:59,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,564 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:59,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:59,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:59,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:59,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:59,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:59,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 03:49:59,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:59,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:59,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:59,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:49:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:59,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:59,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:49:59,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:59,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:59,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:59,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 03:49:59,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,573 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,574 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:59,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:59,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:59,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:59,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:59,574 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:59,574 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 03:49:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:59,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:59,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:59,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:59,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:59,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 03:49:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:59,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:59,579 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:59,579 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:59,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:59,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:59,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 03:49:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:49:59,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:49:59,581 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:49:59,581 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:49:59,581 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:49:59,581 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:49:59,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:49:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:49:59,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:49:59,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:49:59,588 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 20 proven. 78 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2020-10-29 03:49:59,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1042773384] [2020-10-29 03:49:59,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:49:59,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-10-29 03:49:59,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642703470] [2020-10-29 03:49:59,589 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-10-29 03:49:59,589 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:49:59,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-10-29 03:49:59,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:49:59,590 INFO L87 Difference]: Start difference. First operand 152 states and 166 transitions. Second operand 16 states. [2020-10-29 03:49:59,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:49:59,834 INFO L93 Difference]: Finished difference Result 286 states and 314 transitions. [2020-10-29 03:49:59,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-29 03:49:59,835 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 112 [2020-10-29 03:49:59,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:49:59,836 INFO L225 Difference]: With dead ends: 286 [2020-10-29 03:49:59,836 INFO L226 Difference]: Without dead ends: 153 [2020-10-29 03:49:59,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=133, Unknown=0, NotChecked=0, Total=240 [2020-10-29 03:49:59,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-10-29 03:49:59,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2020-10-29 03:49:59,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-10-29 03:49:59,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 167 transitions. [2020-10-29 03:49:59,874 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 167 transitions. Word has length 112 [2020-10-29 03:49:59,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:49:59,874 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 167 transitions. [2020-10-29 03:49:59,874 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-10-29 03:49:59,874 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 167 transitions. [2020-10-29 03:49:59,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-29 03:49:59,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:49:59,876 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:49:59,876 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-10-29 03:49:59,876 INFO L429 AbstractCegarLoop]: === Iteration 54 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:49:59,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:49:59,876 INFO L82 PathProgramCache]: Analyzing trace with hash -2092636287, now seen corresponding path program 48 times [2020-10-29 03:49:59,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:49:59,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1610762286] [2020-10-29 03:49:59,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:49:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:49:59,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:49:59,982 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:04,914 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:04,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-29 03:50:04,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:04,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-29 03:50:04,915 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:04,915 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 15 [2020-10-29 03:50:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 26 [2020-10-29 03:50:04,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 03:50:04,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:05,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:05,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:05,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:05,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-10-29 03:50:05,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,102 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,102 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,103 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,103 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 03:50:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,105 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-29 03:50:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,108 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-10-29 03:50:05,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,110 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2020-10-29 03:50:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,113 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,113 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,113 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2020-10-29 03:50:05,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,114 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,115 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,115 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,115 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-10-29 03:50:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-10-29 03:50:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,120 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,120 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-29 03:50:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,122 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,122 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,122 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,123 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-10-29 03:50:05,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:05,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:05,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:05,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:05,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:05,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:05,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:05,132 INFO L134 CoverageAnalysis]: Checked inductivity of 537 backedges. 20 proven. 91 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2020-10-29 03:50:05,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1610762286] [2020-10-29 03:50:05,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:05,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-10-29 03:50:05,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567351032] [2020-10-29 03:50:05,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-10-29 03:50:05,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:05,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-10-29 03:50:05,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:50:05,133 INFO L87 Difference]: Start difference. First operand 153 states and 167 transitions. Second operand 17 states. [2020-10-29 03:50:05,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:05,521 INFO L93 Difference]: Finished difference Result 264 states and 287 transitions. [2020-10-29 03:50:05,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-29 03:50:05,522 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 113 [2020-10-29 03:50:05,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:05,523 INFO L225 Difference]: With dead ends: 264 [2020-10-29 03:50:05,523 INFO L226 Difference]: Without dead ends: 131 [2020-10-29 03:50:05,524 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=122, Invalid=150, Unknown=0, NotChecked=0, Total=272 [2020-10-29 03:50:05,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-10-29 03:50:05,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 118. [2020-10-29 03:50:05,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-10-29 03:50:05,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2020-10-29 03:50:05,544 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 113 [2020-10-29 03:50:05,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:05,544 INFO L481 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2020-10-29 03:50:05,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-10-29 03:50:05,545 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2020-10-29 03:50:05,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-29 03:50:05,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:05,545 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:05,545 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-10-29 03:50:05,545 INFO L429 AbstractCegarLoop]: === Iteration 55 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:05,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:05,546 INFO L82 PathProgramCache]: Analyzing trace with hash 143045506, now seen corresponding path program 49 times [2020-10-29 03:50:05,546 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:05,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [88467469] [2020-10-29 03:50:05,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:05,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:05,637 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,580 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,581 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-29 03:50:10,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:10,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 03:50:10,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 03:50:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 03:50:10,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 03:50:10,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:10,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:50:10,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:10,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-10-29 03:50:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,805 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-29 03:50:10,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:10,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-29 03:50:10,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-10-29 03:50:10,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-29 03:50:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,824 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,824 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,824 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,825 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-29 03:50:10,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,828 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,829 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2020-10-29 03:50:10,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-10-29 03:50:10,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,835 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,835 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-29 03:50:10,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,838 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,838 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,838 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,839 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-10-29 03:50:10,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,842 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-10-29 03:50:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:10,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:10,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:10,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:10,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:10,846 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:10,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:10,846 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:10,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:10,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:10,856 INFO L134 CoverageAnalysis]: Checked inductivity of 565 backedges. 20 proven. 105 refuted. 0 times theorem prover too weak. 440 trivial. 0 not checked. [2020-10-29 03:50:10,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [88467469] [2020-10-29 03:50:10,857 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:10,857 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 03:50:10,857 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213020582] [2020-10-29 03:50:10,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 03:50:10,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:10,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 03:50:10,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:50:10,858 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand 18 states. [2020-10-29 03:50:11,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:11,134 INFO L93 Difference]: Finished difference Result 216 states and 220 transitions. [2020-10-29 03:50:11,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 03:50:11,135 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 115 [2020-10-29 03:50:11,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:11,140 INFO L225 Difference]: With dead ends: 216 [2020-10-29 03:50:11,140 INFO L226 Difference]: Without dead ends: 119 [2020-10-29 03:50:11,140 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:50:11,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-10-29 03:50:11,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2020-10-29 03:50:11,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-29 03:50:11,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 121 transitions. [2020-10-29 03:50:11,163 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 121 transitions. Word has length 115 [2020-10-29 03:50:11,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:11,163 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 121 transitions. [2020-10-29 03:50:11,163 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 03:50:11,163 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 121 transitions. [2020-10-29 03:50:11,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-10-29 03:50:11,164 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:11,164 INFO L422 BasicCegarLoop]: trace histogram [15, 14, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:11,164 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-10-29 03:50:11,164 INFO L429 AbstractCegarLoop]: === Iteration 56 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:11,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:11,164 INFO L82 PathProgramCache]: Analyzing trace with hash -537524812, now seen corresponding path program 50 times [2020-10-29 03:50:11,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:11,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [301734243] [2020-10-29 03:50:11,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:11,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:11,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,198 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-29 03:50:16,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:16,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5018 [2020-10-29 03:50:16,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-10-29 03:50:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-29 03:50:16,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 03:50:16,199 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:16,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:16,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,409 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:50:16,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:16,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2020-10-29 03:50:16,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,413 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-10-29 03:50:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 03:50:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-29 03:50:16,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,420 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,420 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,420 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-29 03:50:16,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,422 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,422 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,422 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-29 03:50:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 03:50:16,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-10-29 03:50:16,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,429 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,429 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2020-10-29 03:50:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,431 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-29 03:50:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,433 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:16,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:16,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:16,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:16,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:16,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:16,434 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:16,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:16,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:16,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:16,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 580 backedges. 20 proven. 105 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2020-10-29 03:50:16,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [301734243] [2020-10-29 03:50:16,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:16,442 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-10-29 03:50:16,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675026420] [2020-10-29 03:50:16,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-10-29 03:50:16,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:16,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-10-29 03:50:16,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:50:16,443 INFO L87 Difference]: Start difference. First operand 119 states and 121 transitions. Second operand 18 states. [2020-10-29 03:50:16,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:16,848 INFO L93 Difference]: Finished difference Result 217 states and 225 transitions. [2020-10-29 03:50:16,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-29 03:50:16,849 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 116 [2020-10-29 03:50:16,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:16,850 INFO L225 Difference]: With dead ends: 217 [2020-10-29 03:50:16,850 INFO L226 Difference]: Without dead ends: 136 [2020-10-29 03:50:16,851 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=138, Invalid=168, Unknown=0, NotChecked=0, Total=306 [2020-10-29 03:50:16,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2020-10-29 03:50:16,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 120. [2020-10-29 03:50:16,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-29 03:50:16,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 122 transitions. [2020-10-29 03:50:16,885 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 122 transitions. Word has length 116 [2020-10-29 03:50:16,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:16,885 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 122 transitions. [2020-10-29 03:50:16,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-10-29 03:50:16,886 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 122 transitions. [2020-10-29 03:50:16,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-29 03:50:16,886 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:16,886 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:16,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-10-29 03:50:16,887 INFO L429 AbstractCegarLoop]: === Iteration 57 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:16,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:16,887 INFO L82 PathProgramCache]: Analyzing trace with hash 1960098849, now seen corresponding path program 51 times [2020-10-29 03:50:16,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:16,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133284520] [2020-10-29 03:50:16,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:16,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:16,942 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:17,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:21,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:21,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-29 03:50:21,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:21,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5014 [2020-10-29 03:50:21,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:21,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 17 [2020-10-29 03:50:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-29 03:50:21,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-29 03:50:21,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:22,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:22,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-29 03:50:22,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:22,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 03:50:22,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,170 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2020-10-29 03:50:22,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,172 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,173 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,173 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-10-29 03:50:22,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,176 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-29 03:50:22,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,179 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2020-10-29 03:50:22,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-29 03:50:22,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,183 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,184 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,184 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,184 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,184 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 03:50:22,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,186 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,187 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-10-29 03:50:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,190 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 03:50:22,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,192 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:22,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-29 03:50:22,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:22,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:22,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:22,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:22,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 595 backedges. 20 proven. 120 refuted. 0 times theorem prover too weak. 455 trivial. 0 not checked. [2020-10-29 03:50:22,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133284520] [2020-10-29 03:50:22,208 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:22,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2020-10-29 03:50:22,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534650950] [2020-10-29 03:50:22,209 INFO L461 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-10-29 03:50:22,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:22,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-10-29 03:50:22,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-29 03:50:22,210 INFO L87 Difference]: Start difference. First operand 120 states and 122 transitions. Second operand 19 states. [2020-10-29 03:50:22,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:22,596 INFO L93 Difference]: Finished difference Result 239 states and 250 transitions. [2020-10-29 03:50:22,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-29 03:50:22,597 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 117 [2020-10-29 03:50:22,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:22,598 INFO L225 Difference]: With dead ends: 239 [2020-10-29 03:50:22,598 INFO L226 Difference]: Without dead ends: 141 [2020-10-29 03:50:22,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=187, Unknown=0, NotChecked=0, Total=342 [2020-10-29 03:50:22,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-10-29 03:50:22,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 122. [2020-10-29 03:50:22,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-10-29 03:50:22,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 124 transitions. [2020-10-29 03:50:22,620 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 124 transitions. Word has length 117 [2020-10-29 03:50:22,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:22,620 INFO L481 AbstractCegarLoop]: Abstraction has 122 states and 124 transitions. [2020-10-29 03:50:22,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-10-29 03:50:22,621 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 124 transitions. [2020-10-29 03:50:22,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-29 03:50:22,621 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:22,621 INFO L422 BasicCegarLoop]: trace histogram [16, 16, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:22,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-10-29 03:50:22,622 INFO L429 AbstractCegarLoop]: === Iteration 58 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:22,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:22,622 INFO L82 PathProgramCache]: Analyzing trace with hash -547685406, now seen corresponding path program 52 times [2020-10-29 03:50:22,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:22,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [510762833] [2020-10-29 03:50:22,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:22,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:22,653 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:22,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-29 03:50:27,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 03:50:27,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-29 03:50:27,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,665 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 18 [2020-10-29 03:50:27,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 03:50:27,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 03:50:27,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 03:50:27,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 03:50:27,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-29 03:50:27,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 03:50:27,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,921 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-29 03:50:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,924 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-29 03:50:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-29 03:50:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,932 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:27,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-29 03:50:27,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,936 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 03:50:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,939 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,940 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,940 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,940 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,940 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,940 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,940 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,941 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 03:50:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,944 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,944 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,945 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 03:50:27,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 03:50:27,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,950 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-29 03:50:27,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,952 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-29 03:50:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 03:50:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:27,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:27,958 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 03:50:27,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 03:50:27,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 03:50:27,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-10-29 03:50:27,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 03:50:27,959 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 03:50:27,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 03:50:27,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-10-29 03:50:27,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 03:50:27,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 03:50:27,973 INFO L134 CoverageAnalysis]: Checked inductivity of 627 backedges. 20 proven. 136 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2020-10-29 03:50:27,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [510762833] [2020-10-29 03:50:27,974 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 03:50:27,974 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-29 03:50:27,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028769376] [2020-10-29 03:50:27,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-29 03:50:27,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 03:50:27,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-29 03:50:27,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:50:27,975 INFO L87 Difference]: Start difference. First operand 122 states and 124 transitions. Second operand 20 states. [2020-10-29 03:50:28,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 03:50:28,431 INFO L93 Difference]: Finished difference Result 245 states and 257 transitions. [2020-10-29 03:50:28,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-29 03:50:28,432 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 119 [2020-10-29 03:50:28,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 03:50:28,433 INFO L225 Difference]: With dead ends: 245 [2020-10-29 03:50:28,433 INFO L226 Difference]: Without dead ends: 146 [2020-10-29 03:50:28,434 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=173, Invalid=207, Unknown=0, NotChecked=0, Total=380 [2020-10-29 03:50:28,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-10-29 03:50:28,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 124. [2020-10-29 03:50:28,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-10-29 03:50:28,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 126 transitions. [2020-10-29 03:50:28,462 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 126 transitions. Word has length 119 [2020-10-29 03:50:28,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 03:50:28,462 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 126 transitions. [2020-10-29 03:50:28,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-29 03:50:28,462 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 126 transitions. [2020-10-29 03:50:28,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-29 03:50:28,463 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 03:50:28,463 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 03:50:28,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-10-29 03:50:28,463 INFO L429 AbstractCegarLoop]: === Iteration 59 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 03:50:28,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 03:50:28,464 INFO L82 PathProgramCache]: Analyzing trace with hash 448055489, now seen corresponding path program 53 times [2020-10-29 03:50:28,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 03:50:28,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1810701140] [2020-10-29 03:50:28,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 03:50:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 03:50:28,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 03:50:28,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking...