/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 12:50:05,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 12:50:05,825 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 12:50:05,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 12:50:05,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 12:50:05,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 12:50:05,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 12:50:05,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 12:50:05,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 12:50:05,873 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 12:50:05,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 12:50:05,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 12:50:05,876 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 12:50:05,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 12:50:05,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 12:50:05,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 12:50:05,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 12:50:05,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 12:50:05,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 12:50:05,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 12:50:05,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 12:50:05,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 12:50:05,897 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 12:50:05,898 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 12:50:05,915 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 12:50:05,915 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 12:50:05,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 12:50:05,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 12:50:05,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 12:50:05,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 12:50:05,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 12:50:05,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 12:50:05,924 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 12:50:05,925 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 12:50:05,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 12:50:05,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 12:50:05,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 12:50:05,928 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 12:50:05,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 12:50:05,930 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 12:50:05,931 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 12:50:05,935 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 12:50:05,971 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 12:50:05,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 12:50:05,973 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 12:50:05,974 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 12:50:05,974 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 12:50:05,974 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 12:50:05,975 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 12:50:05,975 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 12:50:05,975 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 12:50:05,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 12:50:05,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 12:50:05,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 12:50:05,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 12:50:05,976 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 12:50:05,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 12:50:05,977 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 12:50:05,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 12:50:05,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 12:50:05,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 12:50:05,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 12:50:05,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 12:50:05,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:50:05,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 12:50:05,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 12:50:05,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 12:50:05,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 12:50:05,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 12:50:05,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 12:50:05,980 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 12:50:05,980 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 12:50:06,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 12:50:06,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 12:50:06,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 12:50:06,448 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 12:50:06,449 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 12:50:06,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label19.c [2020-10-28 12:50:06,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2924d1761/dadf3f17d3fc402e9d74ca7618fe3d3c/FLAG738a0e2d6 [2020-10-28 12:50:07,316 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 12:50:07,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label19.c [2020-10-28 12:50:07,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2924d1761/dadf3f17d3fc402e9d74ca7618fe3d3c/FLAG738a0e2d6 [2020-10-28 12:50:07,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2924d1761/dadf3f17d3fc402e9d74ca7618fe3d3c [2020-10-28 12:50:07,491 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 12:50:07,499 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 12:50:07,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 12:50:07,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 12:50:07,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 12:50:07,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:50:07" (1/1) ... [2020-10-28 12:50:07,517 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da95992 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:07, skipping insertion in model container [2020-10-28 12:50:07,517 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 12:50:07" (1/1) ... [2020-10-28 12:50:07,526 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 12:50:07,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 12:50:08,149 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:50:08,160 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 12:50:08,347 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 12:50:08,369 INFO L208 MainTranslator]: Completed translation [2020-10-28 12:50:08,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:08 WrapperNode [2020-10-28 12:50:08,370 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 12:50:08,371 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 12:50:08,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 12:50:08,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 12:50:08,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:08" (1/1) ... [2020-10-28 12:50:08,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:08" (1/1) ... [2020-10-28 12:50:08,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:08" (1/1) ... [2020-10-28 12:50:08,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:08" (1/1) ... [2020-10-28 12:50:08,481 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:08" (1/1) ... [2020-10-28 12:50:08,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:08" (1/1) ... [2020-10-28 12:50:08,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:08" (1/1) ... [2020-10-28 12:50:08,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 12:50:08,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 12:50:08,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 12:50:08,541 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 12:50:08,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:08" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 12:50:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 12:50:08,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 12:50:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 12:50:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 12:50:08,630 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 12:50:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 12:50:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 12:50:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 12:50:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 12:50:08,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 12:50:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 12:50:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 12:50:08,633 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 12:50:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 12:50:08,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 12:50:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 12:50:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 12:50:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 12:50:08,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 12:50:10,372 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 12:50:10,372 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 12:50:10,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:50:10 BoogieIcfgContainer [2020-10-28 12:50:10,375 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 12:50:10,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 12:50:10,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 12:50:10,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 12:50:10,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 12:50:07" (1/3) ... [2020-10-28 12:50:10,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f34c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:50:10, skipping insertion in model container [2020-10-28 12:50:10,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 12:50:08" (2/3) ... [2020-10-28 12:50:10,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25f34c26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 12:50:10, skipping insertion in model container [2020-10-28 12:50:10,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 12:50:10" (3/3) ... [2020-10-28 12:50:10,385 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label19.c [2020-10-28 12:50:10,397 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 12:50:10,403 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 12:50:10,418 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 12:50:10,448 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 12:50:10,449 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 12:50:10,449 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 12:50:10,449 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 12:50:10,449 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 12:50:10,449 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 12:50:10,450 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 12:50:10,450 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 12:50:10,474 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-10-28 12:50:10,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-10-28 12:50:10,486 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:10,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:10,487 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:10,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:10,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1879811954, now seen corresponding path program 1 times [2020-10-28 12:50:10,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:10,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [915660336] [2020-10-28 12:50:10,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:10,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:11,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:11,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 79 [2020-10-28 12:50:11,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:11,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 619 [2020-10-28 12:50:11,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:11,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:11,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:50:11,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:50:11,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-28 12:50:11,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:50:11,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:11,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:11,658 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:11,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:11,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:11,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:50:11,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:11,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:11,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:11,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:50:11,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:11,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:50:11,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [915660336] [2020-10-28 12:50:11,698 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:50:11,698 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 12:50:11,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517517350] [2020-10-28 12:50:11,705 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:50:11,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:11,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:50:11,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:50:11,724 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 5 states. [2020-10-28 12:50:15,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:15,682 INFO L93 Difference]: Finished difference Result 891 states and 1619 transitions. [2020-10-28 12:50:15,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 12:50:15,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-10-28 12:50:15,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:15,711 INFO L225 Difference]: With dead ends: 891 [2020-10-28 12:50:15,711 INFO L226 Difference]: Without dead ends: 565 [2020-10-28 12:50:15,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:15,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-28 12:50:15,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 559. [2020-10-28 12:50:15,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 559 states. [2020-10-28 12:50:15,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 907 transitions. [2020-10-28 12:50:15,867 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 907 transitions. Word has length 69 [2020-10-28 12:50:15,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:15,868 INFO L481 AbstractCegarLoop]: Abstraction has 559 states and 907 transitions. [2020-10-28 12:50:15,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:50:15,868 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 907 transitions. [2020-10-28 12:50:15,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-10-28 12:50:15,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:15,877 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:15,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 12:50:15,878 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:15,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:15,879 INFO L82 PathProgramCache]: Analyzing trace with hash 282035663, now seen corresponding path program 1 times [2020-10-28 12:50:15,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:15,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226585411] [2020-10-28 12:50:15,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:15,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:15,947 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:16,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:17,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:17,784 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:17,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-28 12:50:17,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:50:17,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1860 [2020-10-28 12:50:17,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:17,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:17,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:50:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:50:17,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-28 12:50:17,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:17,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:17,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:17,928 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:17,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:17,943 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:17,944 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:17,944 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:50:17,944 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:17,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:17,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:17,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:17,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:50:17,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:50:17,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:17,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:18,000 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:18,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:18,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:50:18,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:18,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 134 [2020-10-28 12:50:18,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:18,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:18,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:50:18,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:18,293 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 12:50:18,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226585411] [2020-10-28 12:50:18,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 12:50:18,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-28 12:50:18,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691736969] [2020-10-28 12:50:18,296 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:18,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:18,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:18,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:18,304 INFO L87 Difference]: Start difference. First operand 559 states and 907 transitions. Second operand 7 states. [2020-10-28 12:50:21,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:21,147 INFO L93 Difference]: Finished difference Result 1310 states and 2143 transitions. [2020-10-28 12:50:21,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:50:21,149 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 143 [2020-10-28 12:50:21,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:21,161 INFO L225 Difference]: With dead ends: 1310 [2020-10-28 12:50:21,161 INFO L226 Difference]: Without dead ends: 757 [2020-10-28 12:50:21,164 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:50:21,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 757 states. [2020-10-28 12:50:21,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 757 to 563. [2020-10-28 12:50:21,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 563 states. [2020-10-28 12:50:21,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 857 transitions. [2020-10-28 12:50:21,236 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 857 transitions. Word has length 143 [2020-10-28 12:50:21,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:21,239 INFO L481 AbstractCegarLoop]: Abstraction has 563 states and 857 transitions. [2020-10-28 12:50:21,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:21,240 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 857 transitions. [2020-10-28 12:50:21,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-10-28 12:50:21,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:21,254 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:21,255 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 12:50:21,256 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:21,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:21,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1301205150, now seen corresponding path program 1 times [2020-10-28 12:50:21,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:21,258 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167676420] [2020-10-28 12:50:21,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:21,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:21,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:21,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:21,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:24,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:26,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:26,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-28 12:50:26,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:50:26,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-28 12:50:26,329 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:26,329 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-28 12:50:26,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:50:26,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:26,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:26,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:26,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:26,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:26,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:26,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:50:26,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:26,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:26,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:26,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:26,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:26,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:26,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:26,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:26,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:26,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:26,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:50:26,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:26,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:50:26,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:26,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:26,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:26,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:26,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 12:50:26,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:26,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-28 12:50:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:26,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:26,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:26,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:50:26,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:26,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-10-28 12:50:26,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:26,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:26,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:26,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:26,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:50:26,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:26,796 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:50:26,797 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167676420] [2020-10-28 12:50:26,797 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:26,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:50:26,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956663792] [2020-10-28 12:50:26,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:26,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:26,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:26,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:26,804 INFO L87 Difference]: Start difference. First operand 563 states and 857 transitions. Second operand 7 states. [2020-10-28 12:50:29,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:29,854 INFO L93 Difference]: Finished difference Result 1326 states and 2058 transitions. [2020-10-28 12:50:29,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:50:29,859 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-10-28 12:50:29,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:29,871 INFO L225 Difference]: With dead ends: 1326 [2020-10-28 12:50:29,871 INFO L226 Difference]: Without dead ends: 769 [2020-10-28 12:50:29,874 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:50:29,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 769 states. [2020-10-28 12:50:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 769 to 755. [2020-10-28 12:50:29,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 755 states. [2020-10-28 12:50:29,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 755 states to 755 states and 1064 transitions. [2020-10-28 12:50:29,925 INFO L78 Accepts]: Start accepts. Automaton has 755 states and 1064 transitions. Word has length 212 [2020-10-28 12:50:29,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:29,935 INFO L481 AbstractCegarLoop]: Abstraction has 755 states and 1064 transitions. [2020-10-28 12:50:29,935 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:29,936 INFO L276 IsEmpty]: Start isEmpty. Operand 755 states and 1064 transitions. [2020-10-28 12:50:29,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-28 12:50:29,942 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:29,942 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:29,943 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 12:50:29,943 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:29,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:29,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1786326006, now seen corresponding path program 1 times [2020-10-28 12:50:29,944 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:29,944 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [897083954] [2020-10-28 12:50:29,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:29,999 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:30,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:30,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:30,292 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:33,236 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:35,006 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:35,006 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-28 12:50:35,007 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:50:35,007 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5023 [2020-10-28 12:50:35,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:35,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-28 12:50:35,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-28 12:50:35,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:35,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:35,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:35,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:35,130 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:35,131 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:35,131 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:35,131 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:50:35,131 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:35,132 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:35,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:35,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:35,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:35,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:35,170 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:35,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:35,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-28 12:50:35,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:35,211 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-28 12:50:35,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:35,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:35,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:35,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:35,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-28 12:50:35,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:35,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-28 12:50:35,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:35,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:35,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:35,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:50:35,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:35,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-28 12:50:35,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:35,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:35,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-28 12:50:35,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:35,579 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 12:50:35,579 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [897083954] [2020-10-28 12:50:35,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:35,580 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:50:35,580 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275586965] [2020-10-28 12:50:35,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:35,581 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:35,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:35,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:35,582 INFO L87 Difference]: Start difference. First operand 755 states and 1064 transitions. Second operand 7 states. [2020-10-28 12:50:38,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:38,132 INFO L93 Difference]: Finished difference Result 1702 states and 2344 transitions. [2020-10-28 12:50:38,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:50:38,133 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-10-28 12:50:38,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:38,141 INFO L225 Difference]: With dead ends: 1702 [2020-10-28 12:50:38,141 INFO L226 Difference]: Without dead ends: 761 [2020-10-28 12:50:38,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:50:38,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2020-10-28 12:50:38,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 751. [2020-10-28 12:50:38,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 751 states. [2020-10-28 12:50:38,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 863 transitions. [2020-10-28 12:50:38,177 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 863 transitions. Word has length 221 [2020-10-28 12:50:38,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:38,177 INFO L481 AbstractCegarLoop]: Abstraction has 751 states and 863 transitions. [2020-10-28 12:50:38,177 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:38,178 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 863 transitions. [2020-10-28 12:50:38,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-28 12:50:38,183 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:38,184 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:38,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 12:50:38,184 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:38,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:38,185 INFO L82 PathProgramCache]: Analyzing trace with hash -1217571970, now seen corresponding path program 1 times [2020-10-28 12:50:38,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:38,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [55308244] [2020-10-28 12:50:38,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:38,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:38,290 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:38,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:38,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:38,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 336 [2020-10-28 12:50:43,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:50:43,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5029 [2020-10-28 12:50:43,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:50:43,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 12:50:43,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 185 [2020-10-28 12:50:43,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:43,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,409 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,409 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:43,409 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 12:50:43,410 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,410 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:43,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:43,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 12:50:43,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:43,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,707 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:43,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-28 12:50:43,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:43,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:43,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:50:43,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:43,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-10-28 12:50:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:43,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:43,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:43,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:50:43,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:43,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:50:43,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:43,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:43,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:43,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:50:43,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:43,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:44,126 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 122 proven. 69 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-28 12:50:44,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [55308244] [2020-10-28 12:50:44,127 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:44,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:50:44,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771575192] [2020-10-28 12:50:44,128 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:44,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:44,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:44,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:44,130 INFO L87 Difference]: Start difference. First operand 751 states and 863 transitions. Second operand 7 states. [2020-10-28 12:50:45,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:45,963 INFO L93 Difference]: Finished difference Result 1698 states and 1949 transitions. [2020-10-28 12:50:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:50:45,964 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 322 [2020-10-28 12:50:45,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:45,970 INFO L225 Difference]: With dead ends: 1698 [2020-10-28 12:50:45,970 INFO L226 Difference]: Without dead ends: 953 [2020-10-28 12:50:45,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:50:45,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states. [2020-10-28 12:50:46,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 935. [2020-10-28 12:50:46,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 935 states. [2020-10-28 12:50:46,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 935 states to 935 states and 1053 transitions. [2020-10-28 12:50:46,008 INFO L78 Accepts]: Start accepts. Automaton has 935 states and 1053 transitions. Word has length 322 [2020-10-28 12:50:46,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:46,008 INFO L481 AbstractCegarLoop]: Abstraction has 935 states and 1053 transitions. [2020-10-28 12:50:46,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 935 states and 1053 transitions. [2020-10-28 12:50:46,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2020-10-28 12:50:46,017 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:46,017 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:46,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 12:50:46,018 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:46,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:46,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1862350267, now seen corresponding path program 1 times [2020-10-28 12:50:46,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:46,019 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1366367508] [2020-10-28 12:50:46,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:46,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:46,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:46,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:46,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:47,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:48,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:51,152 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:51,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 447 [2020-10-28 12:50:51,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:50:51,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-28 12:50:51,153 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:51,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-28 12:50:51,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:50:51,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:51,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:51,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:51,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:51,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:51,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:51,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:51,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:50:51,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:51,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:51,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:51,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:51,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:51,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:51,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:51,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:51,381 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:51,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:51,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:50:51,476 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:51,476 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 109 [2020-10-28 12:50:51,476 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:51,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:51,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:50:51,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:50:51,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:50:51,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:51,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:51,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:51,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:50:51,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:51,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 302 [2020-10-28 12:50:51,892 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:51,892 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:51,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:51,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:50:51,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:50:51,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:52,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2020-10-28 12:50:52,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:52,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:52,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:52,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:50:52,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:52,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:50:52,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:52,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:50:52,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:52,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-28 12:50:52,290 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 293 proven. 73 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-28 12:50:52,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1366367508] [2020-10-28 12:50:52,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:50:52,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:50:52,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160664] [2020-10-28 12:50:52,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:50:52,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:50:52,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:50:52,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:50:52,294 INFO L87 Difference]: Start difference. First operand 935 states and 1053 transitions. Second operand 7 states. [2020-10-28 12:50:54,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:50:54,313 INFO L93 Difference]: Finished difference Result 2258 states and 2637 transitions. [2020-10-28 12:50:54,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:50:54,314 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 431 [2020-10-28 12:50:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:50:54,326 INFO L225 Difference]: With dead ends: 2258 [2020-10-28 12:50:54,326 INFO L226 Difference]: Without dead ends: 1511 [2020-10-28 12:50:54,328 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:50:54,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2020-10-28 12:50:54,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1497. [2020-10-28 12:50:54,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1497 states. [2020-10-28 12:50:54,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 1692 transitions. [2020-10-28 12:50:54,385 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 1692 transitions. Word has length 431 [2020-10-28 12:50:54,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:50:54,385 INFO L481 AbstractCegarLoop]: Abstraction has 1497 states and 1692 transitions. [2020-10-28 12:50:54,386 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:50:54,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 1692 transitions. [2020-10-28 12:50:54,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2020-10-28 12:50:54,397 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:50:54,398 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:50:54,398 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 12:50:54,398 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:50:54,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:50:54,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1463994741, now seen corresponding path program 1 times [2020-10-28 12:50:54,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:50:54,399 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1411142806] [2020-10-28 12:50:54,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:50:54,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:54,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:54,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:54,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,568 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:55,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:59,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:59,512 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 471 [2020-10-28 12:50:59,512 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:50:59,512 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-28 12:50:59,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:59,512 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:50:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 143 [2020-10-28 12:50:59,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:50:59,513 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:59,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:50:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:59,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:59,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:59,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:50:59,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:59,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:50:59,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:59,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:59,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:50:59,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:59,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:50:59,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:59,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:50:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:59,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:50:59,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:50:59,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:50:59,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:50:59,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 94 [2020-10-28 12:50:59,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:50:59,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:50:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:50:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:50:59,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:50:59,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:50:59,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-28 12:50:59,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:50:59,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,127 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,127 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:00,128 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,128 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 224 [2020-10-28 12:51:00,128 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,128 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:00,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:00,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:00,129 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:00,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2020-10-28 12:51:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:00,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:00,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:00,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:51:00,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:00,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:51:00,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:00,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:00,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:00,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:51:00,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:00,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:51:00,545 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 317 proven. 73 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-28 12:51:00,546 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1411142806] [2020-10-28 12:51:00,546 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:00,546 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:51:00,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279661672] [2020-10-28 12:51:00,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:51:00,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:00,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:51:00,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:51:00,548 INFO L87 Difference]: Start difference. First operand 1497 states and 1692 transitions. Second operand 8 states. [2020-10-28 12:51:03,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:03,873 INFO L93 Difference]: Finished difference Result 5218 states and 6085 transitions. [2020-10-28 12:51:03,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-28 12:51:03,880 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 455 [2020-10-28 12:51:03,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:03,899 INFO L225 Difference]: With dead ends: 5218 [2020-10-28 12:51:03,899 INFO L226 Difference]: Without dead ends: 3727 [2020-10-28 12:51:03,905 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-10-28 12:51:03,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3727 states. [2020-10-28 12:51:04,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3727 to 3351. [2020-10-28 12:51:04,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3351 states. [2020-10-28 12:51:04,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3351 states to 3351 states and 3805 transitions. [2020-10-28 12:51:04,059 INFO L78 Accepts]: Start accepts. Automaton has 3351 states and 3805 transitions. Word has length 455 [2020-10-28 12:51:04,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:04,060 INFO L481 AbstractCegarLoop]: Abstraction has 3351 states and 3805 transitions. [2020-10-28 12:51:04,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:51:04,060 INFO L276 IsEmpty]: Start isEmpty. Operand 3351 states and 3805 transitions. [2020-10-28 12:51:04,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2020-10-28 12:51:04,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:04,069 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:04,069 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 12:51:04,069 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:04,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:04,070 INFO L82 PathProgramCache]: Analyzing trace with hash -184785386, now seen corresponding path program 1 times [2020-10-28 12:51:04,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:04,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [631060643] [2020-10-28 12:51:04,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:04,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:04,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,175 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:09,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 626 [2020-10-28 12:51:09,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:09,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-28 12:51:09,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:09,176 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:09,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:09,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 298 [2020-10-28 12:51:09,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:51:09,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:09,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:09,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:09,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:09,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:09,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:51:09,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:09,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:09,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:09,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:09,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:09,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:09,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:09,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:09,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:09,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:09,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:51:09,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:09,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:09,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:09,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:09,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:51:09,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:09,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:09,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:51:09,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:09,595 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 140 [2020-10-28 12:51:09,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:09,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:09,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:09,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:09,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 172 [2020-10-28 12:51:09,596 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:09,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-28 12:51:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:09,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,853 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:09,853 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:09,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:09,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 168 [2020-10-28 12:51:09,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:09,854 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:09,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:09,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:09,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:09,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:09,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2020-10-28 12:51:09,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:09,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:09,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:09,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:51:09,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:09,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:51:09,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:09,981 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:51:09,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:09,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 861 backedges. 537 proven. 73 refuted. 0 times theorem prover too weak. 251 trivial. 0 not checked. [2020-10-28 12:51:10,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [631060643] [2020-10-28 12:51:10,386 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:10,386 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:10,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166449478] [2020-10-28 12:51:10,388 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:10,389 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:10,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:10,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:10,390 INFO L87 Difference]: Start difference. First operand 3351 states and 3805 transitions. Second operand 7 states. [2020-10-28 12:51:12,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:12,718 INFO L93 Difference]: Finished difference Result 7630 states and 8890 transitions. [2020-10-28 12:51:12,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:51:12,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 608 [2020-10-28 12:51:12,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:12,742 INFO L225 Difference]: With dead ends: 7630 [2020-10-28 12:51:12,743 INFO L226 Difference]: Without dead ends: 4651 [2020-10-28 12:51:12,751 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:51:12,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4651 states. [2020-10-28 12:51:12,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4651 to 4463. [2020-10-28 12:51:12,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4463 states. [2020-10-28 12:51:12,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4463 states to 4463 states and 5215 transitions. [2020-10-28 12:51:12,882 INFO L78 Accepts]: Start accepts. Automaton has 4463 states and 5215 transitions. Word has length 608 [2020-10-28 12:51:12,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:12,883 INFO L481 AbstractCegarLoop]: Abstraction has 4463 states and 5215 transitions. [2020-10-28 12:51:12,883 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:12,883 INFO L276 IsEmpty]: Start isEmpty. Operand 4463 states and 5215 transitions. [2020-10-28 12:51:12,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 685 [2020-10-28 12:51:12,893 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:12,894 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:12,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 12:51:12,895 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:12,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:12,895 INFO L82 PathProgramCache]: Analyzing trace with hash -2118180815, now seen corresponding path program 1 times [2020-10-28 12:51:12,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:12,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592019294] [2020-10-28 12:51:12,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:13,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:13,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:13,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:13,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:18,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:18,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 704 [2020-10-28 12:51:18,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:18,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5049 [2020-10-28 12:51:18,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:18,060 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-10-28 12:51:18,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:18,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:18,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:18,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:18,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:18,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:18,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:18,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:51:18,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:18,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:18,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:18,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:18,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:18,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:18,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:18,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:18,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:18,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:18,318 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:18,318 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:18,318 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-28 12:51:18,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:18,319 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:18,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 104 [2020-10-28 12:51:18,319 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:18,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-28 12:51:18,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:18,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:18,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:18,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:51:18,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:18,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 286 [2020-10-28 12:51:18,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:18,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:18,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:18,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:18,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:51:18,671 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:18,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2020-10-28 12:51:18,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:18,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:18,860 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:18,861 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:18,861 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:18,861 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:51:18,861 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:18,861 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:18,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:51:18,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:18,862 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:18,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2020-10-28 12:51:18,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:18,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:18,972 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:18,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:18,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:18,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 12:51:18,972 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:18,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:18,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:18,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:51:18,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:18,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:19,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 549 [2020-10-28 12:51:19,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:19,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:19,042 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:19,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:51:19,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:19,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:51:19,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:19,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:51:19,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:19,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:19,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1224 backedges. 423 proven. 320 refuted. 0 times theorem prover too weak. 481 trivial. 0 not checked. [2020-10-28 12:51:19,540 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592019294] [2020-10-28 12:51:19,540 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:19,540 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:19,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428772100] [2020-10-28 12:51:19,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:19,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:19,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:19,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:19,544 INFO L87 Difference]: Start difference. First operand 4463 states and 5215 transitions. Second operand 7 states. [2020-10-28 12:51:21,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:21,746 INFO L93 Difference]: Finished difference Result 8928 states and 10556 transitions. [2020-10-28 12:51:21,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:51:21,761 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 684 [2020-10-28 12:51:21,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:21,785 INFO L225 Difference]: With dead ends: 8928 [2020-10-28 12:51:21,785 INFO L226 Difference]: Without dead ends: 4837 [2020-10-28 12:51:21,794 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:51:21,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4837 states. [2020-10-28 12:51:21,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4837 to 4833. [2020-10-28 12:51:21,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4833 states. [2020-10-28 12:51:21,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4833 states to 4833 states and 5641 transitions. [2020-10-28 12:51:21,939 INFO L78 Accepts]: Start accepts. Automaton has 4833 states and 5641 transitions. Word has length 684 [2020-10-28 12:51:21,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:21,939 INFO L481 AbstractCegarLoop]: Abstraction has 4833 states and 5641 transitions. [2020-10-28 12:51:21,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:21,939 INFO L276 IsEmpty]: Start isEmpty. Operand 4833 states and 5641 transitions. [2020-10-28 12:51:21,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 818 [2020-10-28 12:51:21,952 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:21,953 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:21,953 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 12:51:21,953 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:21,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:21,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1478155856, now seen corresponding path program 1 times [2020-10-28 12:51:21,954 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:21,954 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1998573516] [2020-10-28 12:51:21,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:22,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:22,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:22,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:22,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:27,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:27,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:27,137 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 839 [2020-10-28 12:51:27,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:27,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-28 12:51:27,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:27,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:27,137 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:51:27,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 182 [2020-10-28 12:51:27,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:27,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:27,359 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:27,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:27,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:27,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:27,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:51:27,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:27,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:27,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:27,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:27,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:27,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:27,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:27,427 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:27,427 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:27,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:27,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:51:27,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:27,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:27,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:27,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:27,428 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:27,428 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:27,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:27,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:27,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:27,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:27,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:27,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:27,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:51:27,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:27,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:27,473 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:27,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:27,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:27,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:27,515 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:27,515 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:27,515 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:27,515 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:51:27,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:27,516 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:27,516 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:27,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:27,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:27,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:27,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:27,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:51:27,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:27,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 112 [2020-10-28 12:51:27,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:27,689 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:27,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:27,690 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:51:27,690 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:27,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:51:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:27,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:27,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:27,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:27,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:27,941 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 174 [2020-10-28 12:51:27,941 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:27,941 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:27,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:27,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:27,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:27,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:28,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 682 [2020-10-28 12:51:28,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:28,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:28,049 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:28,049 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:51:28,049 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:28,049 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:51:28,049 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:28,049 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:28,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:28,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:51:28,050 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:28,050 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:28,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1895 backedges. 880 proven. 73 refuted. 0 times theorem prover too weak. 942 trivial. 0 not checked. [2020-10-28 12:51:28,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1998573516] [2020-10-28 12:51:28,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:28,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:28,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903207719] [2020-10-28 12:51:28,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:28,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:28,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:28,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:28,685 INFO L87 Difference]: Start difference. First operand 4833 states and 5641 transitions. Second operand 7 states. [2020-10-28 12:51:31,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:31,225 INFO L93 Difference]: Finished difference Result 9670 states and 11326 transitions. [2020-10-28 12:51:31,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:51:31,226 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 817 [2020-10-28 12:51:31,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:31,252 INFO L225 Difference]: With dead ends: 9670 [2020-10-28 12:51:31,252 INFO L226 Difference]: Without dead ends: 5209 [2020-10-28 12:51:31,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:51:31,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5209 states. [2020-10-28 12:51:31,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5209 to 4835. [2020-10-28 12:51:31,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4835 states. [2020-10-28 12:51:31,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4835 states to 4835 states and 5648 transitions. [2020-10-28 12:51:31,395 INFO L78 Accepts]: Start accepts. Automaton has 4835 states and 5648 transitions. Word has length 817 [2020-10-28 12:51:31,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:31,396 INFO L481 AbstractCegarLoop]: Abstraction has 4835 states and 5648 transitions. [2020-10-28 12:51:31,396 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:31,396 INFO L276 IsEmpty]: Start isEmpty. Operand 4835 states and 5648 transitions. [2020-10-28 12:51:31,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2020-10-28 12:51:31,407 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:31,408 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:31,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 12:51:31,409 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:31,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:31,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1691357896, now seen corresponding path program 1 times [2020-10-28 12:51:31,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:31,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1113702834] [2020-10-28 12:51:31,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:31,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:31,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:31,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:31,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:34,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:36,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:36,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 840 [2020-10-28 12:51:36,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:36,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-28 12:51:36,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:36,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:36,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:36,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 255 [2020-10-28 12:51:36,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:36,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:36,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:36,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:36,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:36,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:36,706 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:36,706 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:36,706 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:51:36,706 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:36,706 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:36,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:36,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:36,707 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:36,707 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:36,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:36,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:36,747 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:36,747 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:36,747 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:36,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:51:36,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:36,747 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:36,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:36,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:36,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:36,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:36,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:36,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-28 12:51:36,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:36,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 12:51:36,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:36,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:36,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-28 12:51:36,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:36,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-10-28 12:51:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:36,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:37,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:37,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:51:37,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:37,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-10-28 12:51:37,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:37,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:37,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:37,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:37,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:51:37,092 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:37,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 428 [2020-10-28 12:51:37,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:37,246 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:37,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:37,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:37,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:51:37,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:37,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:51:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:37,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-28 12:51:37,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:37,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:37,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:37,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:37,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:37,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-28 12:51:37,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:37,376 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:37,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:51:37,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:37,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:37,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 683 [2020-10-28 12:51:37,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:37,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:37,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:37,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:51:37,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:37,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:51:37,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:37,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:37,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:37,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:51:37,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:37,440 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:38,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 632 proven. 320 refuted. 0 times theorem prover too weak. 861 trivial. 0 not checked. [2020-10-28 12:51:38,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1113702834] [2020-10-28 12:51:38,206 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:38,206 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:51:38,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145618726] [2020-10-28 12:51:38,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:51:38,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:38,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:51:38,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:51:38,209 INFO L87 Difference]: Start difference. First operand 4835 states and 5648 transitions. Second operand 8 states. [2020-10-28 12:51:39,415 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-10-28 12:51:42,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:42,397 INFO L93 Difference]: Finished difference Result 10224 states and 12103 transitions. [2020-10-28 12:51:42,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:51:42,404 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 818 [2020-10-28 12:51:42,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:42,442 INFO L225 Difference]: With dead ends: 10224 [2020-10-28 12:51:42,442 INFO L226 Difference]: Without dead ends: 5571 [2020-10-28 12:51:42,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:51:42,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5571 states. [2020-10-28 12:51:42,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5571 to 5201. [2020-10-28 12:51:42,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5201 states. [2020-10-28 12:51:42,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 5201 states and 6025 transitions. [2020-10-28 12:51:42,621 INFO L78 Accepts]: Start accepts. Automaton has 5201 states and 6025 transitions. Word has length 818 [2020-10-28 12:51:42,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:42,622 INFO L481 AbstractCegarLoop]: Abstraction has 5201 states and 6025 transitions. [2020-10-28 12:51:42,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:51:42,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5201 states and 6025 transitions. [2020-10-28 12:51:42,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 894 [2020-10-28 12:51:42,645 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:42,645 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:42,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 12:51:42,646 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:42,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:42,647 INFO L82 PathProgramCache]: Analyzing trace with hash 837960043, now seen corresponding path program 1 times [2020-10-28 12:51:42,647 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:42,647 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747335183] [2020-10-28 12:51:42,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:42,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:42,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:43,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:43,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:44,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:47,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:47,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 917 [2020-10-28 12:51:47,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:51:47,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5055 [2020-10-28 12:51:47,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:47,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:47,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:47,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 511 [2020-10-28 12:51:47,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-28 12:51:47,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:48,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:48,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:48,048 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:48,048 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:48,048 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-28 12:51:48,048 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:48,048 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:48,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:48,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:48,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:48,075 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:48,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:48,101 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:48,101 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:51:48,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:48,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:48,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:48,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:48,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:48,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:48,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:48,132 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:48,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:48,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:48,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:51:48,157 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:48,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:48,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:48,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:48,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:48,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:48,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:48,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:48,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:51:48,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:48,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:51:48,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:48,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:48,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:48,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:48,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:48,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:48,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:51:48,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:48,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:48,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 160 [2020-10-28 12:51:48,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:48,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-28 12:51:48,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:48,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:48,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 154 [2020-10-28 12:51:48,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:48,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2020-10-28 12:51:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:48,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:48,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:48,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:48,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-28 12:51:48,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:48,435 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:48,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:51:48,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:48,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 579 [2020-10-28 12:51:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:48,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,562 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:48,562 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:48,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:48,563 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-28 12:51:48,563 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:48,563 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:51:48,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:48,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:48,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 758 [2020-10-28 12:51:48,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:48,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:48,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:48,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:51:48,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:48,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:51:48,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:48,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:48,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:48,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:51:48,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:48,633 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:49,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2410 backedges. 766 proven. 146 refuted. 0 times theorem prover too weak. 1498 trivial. 0 not checked. [2020-10-28 12:51:49,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747335183] [2020-10-28 12:51:49,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:49,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:49,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655941888] [2020-10-28 12:51:49,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:49,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:49,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:49,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:49,090 INFO L87 Difference]: Start difference. First operand 5201 states and 6025 transitions. Second operand 7 states. [2020-10-28 12:51:51,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:51:51,092 INFO L93 Difference]: Finished difference Result 10956 states and 12868 transitions. [2020-10-28 12:51:51,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:51:51,093 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 893 [2020-10-28 12:51:51,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:51:51,118 INFO L225 Difference]: With dead ends: 10956 [2020-10-28 12:51:51,118 INFO L226 Difference]: Without dead ends: 6127 [2020-10-28 12:51:51,130 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:51:51,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6127 states. [2020-10-28 12:51:51,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6127 to 5941. [2020-10-28 12:51:51,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5941 states. [2020-10-28 12:51:51,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5941 states to 5941 states and 6879 transitions. [2020-10-28 12:51:51,273 INFO L78 Accepts]: Start accepts. Automaton has 5941 states and 6879 transitions. Word has length 893 [2020-10-28 12:51:51,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:51:51,274 INFO L481 AbstractCegarLoop]: Abstraction has 5941 states and 6879 transitions. [2020-10-28 12:51:51,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:51:51,274 INFO L276 IsEmpty]: Start isEmpty. Operand 5941 states and 6879 transitions. [2020-10-28 12:51:51,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 905 [2020-10-28 12:51:51,287 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:51:51,288 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:51:51,288 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 12:51:51,288 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:51:51,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:51:51,289 INFO L82 PathProgramCache]: Analyzing trace with hash -107186863, now seen corresponding path program 1 times [2020-10-28 12:51:51,289 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:51:51,289 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [18660706] [2020-10-28 12:51:51,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:51:51,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:51,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:51,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:51,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 928 [2020-10-28 12:51:56,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:51:56,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5059 [2020-10-28 12:51:56,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 343 [2020-10-28 12:51:56,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:51:56,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,661 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:51:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:51:56,669 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:56,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:51:56,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,670 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:56,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:56,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:56,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:51:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:56,715 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:56,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:51:56,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,716 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:56,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:56,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:51:56,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,756 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:51:56,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:56,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:51:56,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,757 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:56,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:56,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:56,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:51:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:56,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:56,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:51:56,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:56,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 12:51:56,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:56,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:56,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:51:56,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:51:56,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 105 [2020-10-28 12:51:56,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:56,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 337 [2020-10-28 12:51:56,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:56,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:57,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:57,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:51:57,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:57,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 150 [2020-10-28 12:51:57,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:57,069 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:51:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:51:57,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:51:57,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:57,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 514 [2020-10-28 12:51:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:57,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:57,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:57,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:51:57,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:57,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:51:57,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:57,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:57,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:57,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:51:57,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:57,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:57,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 590 [2020-10-28 12:51:57,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:57,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:57,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:57,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:51:57,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:57,301 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-28 12:51:57,301 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:57,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:51:57,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:57,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:57,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 769 [2020-10-28 12:51:57,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:51:57,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:51:57,389 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:51:57,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:51:57,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:51:57,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:51:57,390 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:51:57,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:51:57,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:51:57,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:51:57,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:51:57,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:51:58,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2414 backedges. 793 proven. 320 refuted. 0 times theorem prover too weak. 1301 trivial. 0 not checked. [2020-10-28 12:51:58,022 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [18660706] [2020-10-28 12:51:58,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:51:58,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:51:58,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1100105149] [2020-10-28 12:51:58,024 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:51:58,024 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:51:58,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:51:58,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:51:58,029 INFO L87 Difference]: Start difference. First operand 5941 states and 6879 transitions. Second operand 7 states. [2020-10-28 12:52:00,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:00,032 INFO L93 Difference]: Finished difference Result 12240 states and 14200 transitions. [2020-10-28 12:52:00,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 12:52:00,033 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 904 [2020-10-28 12:52:00,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:00,054 INFO L225 Difference]: With dead ends: 12240 [2020-10-28 12:52:00,055 INFO L226 Difference]: Without dead ends: 6671 [2020-10-28 12:52:00,068 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:52:00,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6671 states. [2020-10-28 12:52:00,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6671 to 6489. [2020-10-28 12:52:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6489 states. [2020-10-28 12:52:00,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6489 states to 6489 states and 7478 transitions. [2020-10-28 12:52:00,379 INFO L78 Accepts]: Start accepts. Automaton has 6489 states and 7478 transitions. Word has length 904 [2020-10-28 12:52:00,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:00,380 INFO L481 AbstractCegarLoop]: Abstraction has 6489 states and 7478 transitions. [2020-10-28 12:52:00,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:00,380 INFO L276 IsEmpty]: Start isEmpty. Operand 6489 states and 7478 transitions. [2020-10-28 12:52:00,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 912 [2020-10-28 12:52:00,394 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:00,394 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:00,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 12:52:00,395 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:00,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:00,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1581116359, now seen corresponding path program 1 times [2020-10-28 12:52:00,396 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:00,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1803404859] [2020-10-28 12:52:00,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:00,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:00,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:00,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:03,642 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:04,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:04,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:05,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:05,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 935 [2020-10-28 12:52:05,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 12:52:05,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5091 [2020-10-28 12:52:05,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:05,666 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:05,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 350 [2020-10-28 12:52:05,667 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:05,667 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:05,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:05,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:05,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:05,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:05,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:05,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:05,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 12:52:05,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:05,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:05,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:05,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:05,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:05,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:05,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:05,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:05,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:05,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:05,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:05,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 12:52:05,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:05,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:05,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:05,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:05,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:05,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:05,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:05,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:05,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:06,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:06,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:06,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:06,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:52:06,026 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:06,026 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:06,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:06,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:06,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:06,027 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:06,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:06,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:06,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:06,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:06,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:06,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:06,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-28 12:52:06,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:06,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:06,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 112 [2020-10-28 12:52:06,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:06,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:06,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:06,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:06,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:06,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:06,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 411 [2020-10-28 12:52:06,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:06,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:06,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:06,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 178 [2020-10-28 12:52:06,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:06,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2020-10-28 12:52:06,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:06,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:06,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:06,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:06,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:06,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:52:06,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:06,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:06,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:06,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-28 12:52:06,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:06,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:06,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 597 [2020-10-28 12:52:06,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:06,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:06,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:06,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:06,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:06,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 70 [2020-10-28 12:52:06,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:06,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 177 [2020-10-28 12:52:06,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:06,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:07,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 776 [2020-10-28 12:52:07,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:07,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:07,091 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:07,091 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:07,092 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:07,092 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:52:07,092 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:07,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:07,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:07,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:07,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:07,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:07,721 INFO L134 CoverageAnalysis]: Checked inductivity of 2428 backedges. 800 proven. 320 refuted. 0 times theorem prover too weak. 1308 trivial. 0 not checked. [2020-10-28 12:52:07,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1803404859] [2020-10-28 12:52:07,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:07,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:07,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154630943] [2020-10-28 12:52:07,727 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:07,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:07,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:07,728 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:07,728 INFO L87 Difference]: Start difference. First operand 6489 states and 7478 transitions. Second operand 7 states. [2020-10-28 12:52:10,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:10,004 INFO L93 Difference]: Finished difference Result 12796 states and 14769 transitions. [2020-10-28 12:52:10,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:52:10,008 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 911 [2020-10-28 12:52:10,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:10,028 INFO L225 Difference]: With dead ends: 12796 [2020-10-28 12:52:10,029 INFO L226 Difference]: Without dead ends: 6497 [2020-10-28 12:52:10,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:52:10,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6497 states. [2020-10-28 12:52:10,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6497 to 6313. [2020-10-28 12:52:10,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6313 states. [2020-10-28 12:52:10,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6313 states to 6313 states and 7092 transitions. [2020-10-28 12:52:10,182 INFO L78 Accepts]: Start accepts. Automaton has 6313 states and 7092 transitions. Word has length 911 [2020-10-28 12:52:10,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:10,183 INFO L481 AbstractCegarLoop]: Abstraction has 6313 states and 7092 transitions. [2020-10-28 12:52:10,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:10,183 INFO L276 IsEmpty]: Start isEmpty. Operand 6313 states and 7092 transitions. [2020-10-28 12:52:10,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 993 [2020-10-28 12:52:10,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:10,199 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:10,199 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 12:52:10,199 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:10,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:10,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1754480672, now seen corresponding path program 1 times [2020-10-28 12:52:10,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:10,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1721745559] [2020-10-28 12:52:10,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:10,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:10,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:11,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:12,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:14,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:14,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1018 [2020-10-28 12:52:14,090 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:52:14,090 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3699 [2020-10-28 12:52:14,090 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:14,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:14,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 871 [2020-10-28 12:52:14,091 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:52:14,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:14,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:14,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:14,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:14,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:14,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:14,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:14,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:14,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:14,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:14,272 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:14,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:14,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:14,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:14,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:14,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:14,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:14,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:14,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:14,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:52:14,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:14,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:14,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:14,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:14,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:14,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:14,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:14,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:14,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:14,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:52:14,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:14,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:14,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:14,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:14,377 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:14,377 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:14,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:14,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:14,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:14,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:14,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:14,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:52:14,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:14,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:14,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:14,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:14,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:14,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:14,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:14,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:14,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:14,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:14,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:52:14,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:14,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:14,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:14,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:14,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:14,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:14,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:14,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:14,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:14,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:14,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:52:14,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:14,528 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:14,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:14,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:14,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:14,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:14,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:14,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:14,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:14,583 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:52:14,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:14,583 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:14,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:14,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:14,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:14,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:14,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:14,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:14,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:14,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 144 [2020-10-28 12:52:14,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:14,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:14,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:14,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:14,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 174 [2020-10-28 12:52:14,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:14,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:14,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:14,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:14,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:14,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:14,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-28 12:52:14,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:14,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:14,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:52:14,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:15,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3044 backedges. 1015 proven. 2 refuted. 0 times theorem prover too weak. 2027 trivial. 0 not checked. [2020-10-28 12:52:15,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1721745559] [2020-10-28 12:52:15,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:15,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:15,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103075697] [2020-10-28 12:52:15,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:15,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:15,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:15,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:15,740 INFO L87 Difference]: Start difference. First operand 6313 states and 7092 transitions. Second operand 7 states. [2020-10-28 12:52:17,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:17,799 INFO L93 Difference]: Finished difference Result 12622 states and 14190 transitions. [2020-10-28 12:52:17,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:52:17,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 992 [2020-10-28 12:52:17,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:17,823 INFO L225 Difference]: With dead ends: 12622 [2020-10-28 12:52:17,823 INFO L226 Difference]: Without dead ends: 6499 [2020-10-28 12:52:17,837 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:52:17,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2020-10-28 12:52:17,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 6131. [2020-10-28 12:52:17,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6131 states. [2020-10-28 12:52:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6131 states to 6131 states and 6727 transitions. [2020-10-28 12:52:17,964 INFO L78 Accepts]: Start accepts. Automaton has 6131 states and 6727 transitions. Word has length 992 [2020-10-28 12:52:17,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:17,966 INFO L481 AbstractCegarLoop]: Abstraction has 6131 states and 6727 transitions. [2020-10-28 12:52:17,966 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:17,966 INFO L276 IsEmpty]: Start isEmpty. Operand 6131 states and 6727 transitions. [2020-10-28 12:52:17,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1072 [2020-10-28 12:52:17,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:17,985 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:17,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-28 12:52:17,985 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:17,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:17,986 INFO L82 PathProgramCache]: Analyzing trace with hash 413614789, now seen corresponding path program 1 times [2020-10-28 12:52:17,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:17,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [406667245] [2020-10-28 12:52:17,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:18,300 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:18,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:21,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:22,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:23,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:23,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1099 [2020-10-28 12:52:23,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:23,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-28 12:52:23,213 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:23,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 952 [2020-10-28 12:52:23,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-28 12:52:23,214 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:23,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:23,451 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:23,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:23,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:23,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:23,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:23,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:23,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:23,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:23,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:23,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:23,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:23,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:23,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:23,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:23,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:23,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:23,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:52:23,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:23,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:23,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:23,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:23,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:23,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:23,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:23,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:23,664 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:23,664 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:23,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:23,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-28 12:52:23,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:23,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:23,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:23,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:23,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:23,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:23,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:23,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:23,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:23,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:52:23,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:23,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:23,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:23,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:23,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:23,719 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:23,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:23,756 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:23,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:23,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:23,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:23,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:52:23,774 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:23,774 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:23,774 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:23,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:23,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:23,775 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:23,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:23,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:23,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:23,856 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:23,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:23,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:23,856 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-28 12:52:23,856 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:23,867 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:23,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:23,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 11 [2020-10-28 12:52:23,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:23,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:23,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:23,954 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:23,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:23,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:23,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:52:23,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:23,955 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:23,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:23,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:23,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:23,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:23,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:23,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:23,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:24,025 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:24,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:24,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:24,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-28 12:52:24,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:24,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:24,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:24,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:24,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:24,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:24,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:24,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:24,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:24,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-28 12:52:24,110 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:24,110 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:52:24,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:24,111 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:24,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-28 12:52:24,111 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:24,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2020-10-28 12:52:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:24,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:24,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:24,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:24,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:24,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:52:24,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:24,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:24,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:24,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:24,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-28 12:52:24,191 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:24,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3729 backedges. 1152 proven. 2 refuted. 0 times theorem prover too weak. 2575 trivial. 0 not checked. [2020-10-28 12:52:24,930 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [406667245] [2020-10-28 12:52:24,930 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:24,930 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:24,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097860688] [2020-10-28 12:52:24,931 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:24,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:24,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:24,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:24,932 INFO L87 Difference]: Start difference. First operand 6131 states and 6727 transitions. Second operand 7 states. [2020-10-28 12:52:27,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:27,266 INFO L93 Difference]: Finished difference Result 12258 states and 13472 transitions. [2020-10-28 12:52:27,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 12:52:27,267 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1071 [2020-10-28 12:52:27,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:27,288 INFO L225 Difference]: With dead ends: 12258 [2020-10-28 12:52:27,288 INFO L226 Difference]: Without dead ends: 6317 [2020-10-28 12:52:27,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:52:27,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6317 states. [2020-10-28 12:52:27,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6317 to 6315. [2020-10-28 12:52:27,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6315 states. [2020-10-28 12:52:27,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6315 states to 6315 states and 6912 transitions. [2020-10-28 12:52:27,437 INFO L78 Accepts]: Start accepts. Automaton has 6315 states and 6912 transitions. Word has length 1071 [2020-10-28 12:52:27,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:27,440 INFO L481 AbstractCegarLoop]: Abstraction has 6315 states and 6912 transitions. [2020-10-28 12:52:27,440 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:27,440 INFO L276 IsEmpty]: Start isEmpty. Operand 6315 states and 6912 transitions. [2020-10-28 12:52:27,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1079 [2020-10-28 12:52:27,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:27,461 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:27,461 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-28 12:52:27,461 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:27,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:27,462 INFO L82 PathProgramCache]: Analyzing trace with hash -407543815, now seen corresponding path program 1 times [2020-10-28 12:52:27,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:27,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [320632809] [2020-10-28 12:52:27,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:27,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:28,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:32,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:32,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1106 [2020-10-28 12:52:32,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:52:32,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-28 12:52:32,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:32,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:32,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-28 12:52:32,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 690 [2020-10-28 12:52:32,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 270 [2020-10-28 12:52:32,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:32,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:32,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:32,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:32,910 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:32,911 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:32,911 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:32,911 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:52:32,911 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:32,911 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:32,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:32,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:32,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:32,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:32,963 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:32,964 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:32,964 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:32,964 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:52:32,964 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:32,964 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:32,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:32,965 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:32,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:32,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:32,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:33,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:33,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:33,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:33,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:52:33,006 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:33,006 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:33,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:33,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:33,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:33,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:33,029 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:33,047 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:33,047 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:33,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:33,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:52:33,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:33,047 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:33,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:33,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:33,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:33,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:33,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:33,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:33,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:33,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:33,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:33,095 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:52:33,095 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:33,095 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:33,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:33,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:33,098 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:33,098 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:52:33,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:33,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:33,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:33,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:33,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:33,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:33,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-28 12:52:33,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:33,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:33,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:33,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:33,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:33,248 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:33,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:33,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:33,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:33,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:52:33,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:33,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:33,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-28 12:52:33,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:33,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:33,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:33,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:33,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:33,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:33,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:33,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 280 [2020-10-28 12:52:33,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:33,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:33,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-10-28 12:52:33,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:33,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 180 [2020-10-28 12:52:33,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:33,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:33,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:33,771 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:33,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:33,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:52:33,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:33,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 64 [2020-10-28 12:52:33,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:33,829 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:33,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:33,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:33,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-28 12:52:33,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:33,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 943 [2020-10-28 12:52:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:33,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:33,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:33,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:33,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:33,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:52:33,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:33,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:33,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:33,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:33,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:33,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:34,710 INFO L134 CoverageAnalysis]: Checked inductivity of 3766 backedges. 1830 proven. 146 refuted. 0 times theorem prover too weak. 1790 trivial. 0 not checked. [2020-10-28 12:52:34,711 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [320632809] [2020-10-28 12:52:34,711 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:34,711 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-28 12:52:34,711 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426744038] [2020-10-28 12:52:34,712 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-28 12:52:34,712 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:34,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-28 12:52:34,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-10-28 12:52:34,713 INFO L87 Difference]: Start difference. First operand 6315 states and 6912 transitions. Second operand 10 states. [2020-10-28 12:52:38,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:38,689 INFO L93 Difference]: Finished difference Result 14108 states and 15520 transitions. [2020-10-28 12:52:38,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-28 12:52:38,690 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 1078 [2020-10-28 12:52:38,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:38,717 INFO L225 Difference]: With dead ends: 14108 [2020-10-28 12:52:38,717 INFO L226 Difference]: Without dead ends: 7983 [2020-10-28 12:52:38,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2020-10-28 12:52:38,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7983 states. [2020-10-28 12:52:38,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7983 to 7609. [2020-10-28 12:52:38,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7609 states. [2020-10-28 12:52:38,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7609 states to 7609 states and 8374 transitions. [2020-10-28 12:52:38,895 INFO L78 Accepts]: Start accepts. Automaton has 7609 states and 8374 transitions. Word has length 1078 [2020-10-28 12:52:38,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:38,897 INFO L481 AbstractCegarLoop]: Abstraction has 7609 states and 8374 transitions. [2020-10-28 12:52:38,897 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-28 12:52:38,897 INFO L276 IsEmpty]: Start isEmpty. Operand 7609 states and 8374 transitions. [2020-10-28 12:52:38,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1298 [2020-10-28 12:52:38,923 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:38,923 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:38,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-28 12:52:38,924 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:38,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:38,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1728794340, now seen corresponding path program 1 times [2020-10-28 12:52:38,925 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:38,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045229867] [2020-10-28 12:52:38,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:39,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:39,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:39,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:39,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:41,587 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1327 [2020-10-28 12:52:44,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:44,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5069 [2020-10-28 12:52:44,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1076 [2020-10-28 12:52:44,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 181 [2020-10-28 12:52:44,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:44,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:44,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,400 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:52:44,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:44,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,440 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:44,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:52:44,441 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,441 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:44,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:52:44,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:44,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,538 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:44,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-28 12:52:44,539 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,539 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:44,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,578 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,578 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:44,578 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,578 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:52:44,578 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,579 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:44,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:44,629 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,629 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:52:44,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,630 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,630 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:44,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,701 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,701 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:44,701 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:52:44,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,702 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,714 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,758 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:44,758 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,758 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:52:44,758 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,758 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,759 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:44,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,827 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,828 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:52:44,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:52:44,828 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,828 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,828 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:44,828 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:52:44,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:44,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:44,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-28 12:52:44,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:44,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:52:44,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:44,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:44,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:44,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:44,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 12:52:44,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:44,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1058 [2020-10-28 12:52:44,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:44,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:45,101 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:45,101 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 12:52:45,102 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:45,102 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-10-28 12:52:45,102 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:45,102 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:45,102 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 179 [2020-10-28 12:52:45,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:46,154 INFO L134 CoverageAnalysis]: Checked inductivity of 5081 backedges. 1672 proven. 2 refuted. 0 times theorem prover too weak. 3407 trivial. 0 not checked. [2020-10-28 12:52:46,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045229867] [2020-10-28 12:52:46,154 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:46,154 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:46,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773068009] [2020-10-28 12:52:46,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:46,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:46,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:46,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:46,156 INFO L87 Difference]: Start difference. First operand 7609 states and 8374 transitions. Second operand 7 states. [2020-10-28 12:52:48,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:48,444 INFO L93 Difference]: Finished difference Result 16346 states and 18075 transitions. [2020-10-28 12:52:48,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:52:48,446 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1297 [2020-10-28 12:52:48,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:48,469 INFO L225 Difference]: With dead ends: 16346 [2020-10-28 12:52:48,469 INFO L226 Difference]: Without dead ends: 7635 [2020-10-28 12:52:48,481 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-28 12:52:48,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7635 states. [2020-10-28 12:52:48,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7635 to 7413. [2020-10-28 12:52:48,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7413 states. [2020-10-28 12:52:48,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7413 states to 7413 states and 8030 transitions. [2020-10-28 12:52:48,620 INFO L78 Accepts]: Start accepts. Automaton has 7413 states and 8030 transitions. Word has length 1297 [2020-10-28 12:52:48,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:48,622 INFO L481 AbstractCegarLoop]: Abstraction has 7413 states and 8030 transitions. [2020-10-28 12:52:48,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:48,622 INFO L276 IsEmpty]: Start isEmpty. Operand 7413 states and 8030 transitions. [2020-10-28 12:52:48,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1327 [2020-10-28 12:52:48,647 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:48,648 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:48,648 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-28 12:52:48,648 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:48,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:48,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1565090941, now seen corresponding path program 1 times [2020-10-28 12:52:48,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:48,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585871544] [2020-10-28 12:52:48,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:48,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:49,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:49,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:49,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:51,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:53,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:53,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1358 [2020-10-28 12:52:53,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 12:52:53,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-28 12:52:53,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:53,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 991 [2020-10-28 12:52:53,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 133 [2020-10-28 12:52:53,928 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 12:52:54,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:52:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:54,342 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:54,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:54,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:52:54,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:54,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:52:54,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:54,347 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:54,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:54,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:54,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:54,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:54,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:52:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:54,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:54,396 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:54,397 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:52:54,397 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:54,397 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 12:52:54,397 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:54,397 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:54,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:54,398 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:54,398 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:54,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:52:54,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:54,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:54,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:54,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:52:54,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:54,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 12:52:54,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:54,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:54,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:54,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:54,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:54,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:54,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:52:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:54,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:54,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:54,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:52:54,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:54,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:52:54,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:54,525 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:54,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:54,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:54,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:54,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:54,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:52:54,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:54,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:54,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:54,580 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:52:54,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:54,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:52:54,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:54,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:54,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:54,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:54,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:54,581 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:54,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:52:54,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:54,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:54,657 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:54,658 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:52:54,658 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:54,658 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-28 12:52:54,658 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:54,658 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:54,658 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:54,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:54,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:54,659 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:54,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:52:54,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:54,720 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:54,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:54,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:52:54,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:54,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:52:54,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:54,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:54,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:54,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:54,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:52:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:54,762 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:54,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:54,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:52:54,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:54,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:52:54,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:54,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:54,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:54,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:54,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:52:54,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:54,904 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:54,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:54,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:52:54,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:54,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-28 12:52:54,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:54,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:52:54,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:52:54,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-28 12:52:54,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:55,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:52:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:55,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:55,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:55,204 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:52:55,204 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:55,204 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 167 [2020-10-28 12:52:55,204 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:55,204 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:55,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:52:55,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:52:55,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:52:55,205 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:55,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1105 [2020-10-28 12:52:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:55,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:55,417 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:55,417 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:52:55,417 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:55,417 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-28 12:52:55,417 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:55,417 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:52:55,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:55,418 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:52:55,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1191 [2020-10-28 12:52:55,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:55,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:52:55,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:52:55,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:52:55,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:52:55,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 12:52:55,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:52:55,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:52:55,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:52:55,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:52:55,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:52:55,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 12:52:56,965 INFO L134 CoverageAnalysis]: Checked inductivity of 5808 backedges. 1617 proven. 156 refuted. 0 times theorem prover too weak. 4035 trivial. 0 not checked. [2020-10-28 12:52:56,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585871544] [2020-10-28 12:52:56,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:52:56,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 12:52:56,966 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629203205] [2020-10-28 12:52:56,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 12:52:56,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:52:56,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 12:52:56,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 12:52:56,968 INFO L87 Difference]: Start difference. First operand 7413 states and 8030 transitions. Second operand 7 states. [2020-10-28 12:52:59,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:52:59,213 INFO L93 Difference]: Finished difference Result 14642 states and 15877 transitions. [2020-10-28 12:52:59,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 12:52:59,214 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1326 [2020-10-28 12:52:59,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:52:59,231 INFO L225 Difference]: With dead ends: 14642 [2020-10-28 12:52:59,231 INFO L226 Difference]: Without dead ends: 7419 [2020-10-28 12:52:59,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-28 12:52:59,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7419 states. [2020-10-28 12:52:59,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7419 to 7413. [2020-10-28 12:52:59,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7413 states. [2020-10-28 12:52:59,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7413 states to 7413 states and 8020 transitions. [2020-10-28 12:52:59,411 INFO L78 Accepts]: Start accepts. Automaton has 7413 states and 8020 transitions. Word has length 1326 [2020-10-28 12:52:59,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:52:59,412 INFO L481 AbstractCegarLoop]: Abstraction has 7413 states and 8020 transitions. [2020-10-28 12:52:59,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 12:52:59,412 INFO L276 IsEmpty]: Start isEmpty. Operand 7413 states and 8020 transitions. [2020-10-28 12:52:59,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1537 [2020-10-28 12:52:59,442 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:52:59,443 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:52:59,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-28 12:52:59,443 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:52:59,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:52:59,444 INFO L82 PathProgramCache]: Analyzing trace with hash -1116226201, now seen corresponding path program 1 times [2020-10-28 12:52:59,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:52:59,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1533899332] [2020-10-28 12:52:59,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:52:59,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:52:59,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:01,915 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:03,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:03,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1568 [2020-10-28 12:53:03,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:53:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4131 [2020-10-28 12:53:03,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:03,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1497 [2020-10-28 12:53:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 12:53:03,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:04,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,139 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:04,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-28 12:53:04,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:04,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:04,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,164 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,181 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:04,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,182 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:53:04,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,182 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:04,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:04,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,206 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:04,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 12:53:04,226 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,226 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:04,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:04,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:04,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 12:53:04,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:04,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:04,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:53:04,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 12:53:04,483 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:04,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:53:04,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,547 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:53:04,547 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 12:53:04,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:04,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:53:04,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,623 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:53:04,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:53:04,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,624 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,624 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:04,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:53:04,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:04,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-28 12:53:04,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,693 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:04,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:53:04,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,763 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:53:04,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 12:53:04,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:04,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:53:04,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,834 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:53:04,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:53:04,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:04,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:53:04,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:04,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:04,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:04,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:53:04,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:04,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:53:04,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:04,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:04,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:04,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:05,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:53:05,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:05,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:05,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:05,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-28 12:53:05,150 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:05,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 12:53:05,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:05,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:05,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-28 12:53:05,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:06,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6720 backedges. 690 proven. 11 refuted. 0 times theorem prover too weak. 6019 trivial. 0 not checked. [2020-10-28 12:53:06,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1533899332] [2020-10-28 12:53:06,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:06,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:53:06,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086449402] [2020-10-28 12:53:06,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:53:06,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:06,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:53:06,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:53:06,676 INFO L87 Difference]: Start difference. First operand 7413 states and 8020 transitions. Second operand 5 states. [2020-10-28 12:53:08,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:08,497 INFO L93 Difference]: Finished difference Result 15738 states and 17053 transitions. [2020-10-28 12:53:08,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:53:08,497 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1536 [2020-10-28 12:53:08,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:08,516 INFO L225 Difference]: With dead ends: 15738 [2020-10-28 12:53:08,516 INFO L226 Difference]: Without dead ends: 8331 [2020-10-28 12:53:08,528 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:53:08,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8331 states. [2020-10-28 12:53:08,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8331 to 8331. [2020-10-28 12:53:08,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8331 states. [2020-10-28 12:53:08,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8331 states to 8331 states and 8966 transitions. [2020-10-28 12:53:08,694 INFO L78 Accepts]: Start accepts. Automaton has 8331 states and 8966 transitions. Word has length 1536 [2020-10-28 12:53:08,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:08,696 INFO L481 AbstractCegarLoop]: Abstraction has 8331 states and 8966 transitions. [2020-10-28 12:53:08,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:53:08,696 INFO L276 IsEmpty]: Start isEmpty. Operand 8331 states and 8966 transitions. [2020-10-28 12:53:08,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1649 [2020-10-28 12:53:08,734 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:08,735 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:53:08,735 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-28 12:53:08,735 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:08,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:08,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1657409249, now seen corresponding path program 1 times [2020-10-28 12:53:08,736 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:08,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475226387] [2020-10-28 12:53:08,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:09,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:09,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:09,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:10,445 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,165 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1684 [2020-10-28 12:53:14,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 12:53:14,166 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5086 [2020-10-28 12:53:14,166 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,166 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 12:53:14,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1133 [2020-10-28 12:53:14,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 317 [2020-10-28 12:53:14,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:14,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:53:14,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,424 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,441 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:14,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:53:14,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:14,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:53:14,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:14,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,573 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:14,573 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,573 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-28 12:53:14,573 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,573 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:53:14,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:53:14,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:53:14,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,668 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:53:14,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:53:14,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:53:14,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:53:14,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 12:53:14,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:53:14,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:14,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:53:14,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:53:14,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,848 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:53:14,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-28 12:53:14,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,849 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:14,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:14,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:53:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:14,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:14,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:14,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:53:14,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:14,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-28 12:53:14,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:14,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:14,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:14,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:14,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-28 12:53:14,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:14,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:53:15,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:15,033 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:15,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:15,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:53:15,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:15,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 151 [2020-10-28 12:53:15,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:15,171 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:15,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 183 [2020-10-28 12:53:15,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:15,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:53:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:15,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:15,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:15,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-28 12:53:15,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:15,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 146 [2020-10-28 12:53:15,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:15,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 12:53:15,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 131 [2020-10-28 12:53:15,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:15,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1427 [2020-10-28 12:53:15,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:15,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:15,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:15,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-28 12:53:15,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:15,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 12:53:15,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:15,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:15,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:15,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-28 12:53:15,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:15,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:15,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1513 [2020-10-28 12:53:15,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:15,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:15,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:15,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:53:15,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:15,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-28 12:53:15,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:15,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:15,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:15,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 72 [2020-10-28 12:53:15,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:15,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:18,962 INFO L134 CoverageAnalysis]: Checked inductivity of 8508 backedges. 2983 proven. 433 refuted. 0 times theorem prover too weak. 5092 trivial. 0 not checked. [2020-10-28 12:53:18,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475226387] [2020-10-28 12:53:18,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:18,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 12:53:18,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806913000] [2020-10-28 12:53:18,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 12:53:18,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:18,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 12:53:18,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-28 12:53:18,964 INFO L87 Difference]: Start difference. First operand 8331 states and 8966 transitions. Second operand 8 states. [2020-10-28 12:53:21,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:21,315 INFO L93 Difference]: Finished difference Result 16488 states and 17769 transitions. [2020-10-28 12:53:21,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 12:53:21,316 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1648 [2020-10-28 12:53:21,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:21,334 INFO L225 Difference]: With dead ends: 16488 [2020-10-28 12:53:21,334 INFO L226 Difference]: Without dead ends: 8347 [2020-10-28 12:53:21,344 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-10-28 12:53:21,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8347 states. [2020-10-28 12:53:21,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8347 to 8329. [2020-10-28 12:53:21,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8329 states. [2020-10-28 12:53:21,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8329 states to 8329 states and 8944 transitions. [2020-10-28 12:53:21,493 INFO L78 Accepts]: Start accepts. Automaton has 8329 states and 8944 transitions. Word has length 1648 [2020-10-28 12:53:21,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:21,495 INFO L481 AbstractCegarLoop]: Abstraction has 8329 states and 8944 transitions. [2020-10-28 12:53:21,495 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 12:53:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 8329 states and 8944 transitions. [2020-10-28 12:53:21,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1673 [2020-10-28 12:53:21,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 12:53:21,528 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 12:53:21,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-28 12:53:21,529 INFO L429 AbstractCegarLoop]: === Iteration 22 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 12:53:21,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 12:53:21,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1808196717, now seen corresponding path program 1 times [2020-10-28 12:53:21,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 12:53:21,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528659706] [2020-10-28 12:53:21,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 12:53:21,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:21,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:23,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:24,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:24,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1708 [2020-10-28 12:53:24,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 12:53:24,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2543 [2020-10-28 12:53:24,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:24,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 12:53:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1637 [2020-10-28 12:53:24,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-10-28 12:53:24,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:24,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 12:53:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:24,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:24,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:24,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 12:53:24,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:24,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-28 12:53:24,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:24,692 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:24,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:24,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:24,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:24,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:24,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 12:53:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:24,715 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:24,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:24,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-28 12:53:24,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:24,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:53:24,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:24,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:24,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:24,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:24,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:24,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:24,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-28 12:53:24,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:24,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:24,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:24,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-28 12:53:24,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 12:53:24,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:24,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:24,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:24,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:24,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-10-28 12:53:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:24,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:24,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:24,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 12:53:24,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:24,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 12:53:24,831 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:24,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:24,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:24,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:24,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:24,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:24,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-28 12:53:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:24,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:24,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:24,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 82 [2020-10-28 12:53:24,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:24,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 12:53:24,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:24,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:24,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:24,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:24,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:24,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:24,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2020-10-28 12:53:24,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:24,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:24,919 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:24,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 178 [2020-10-28 12:53:24,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:24,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-28 12:53:24,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:24,919 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:24,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:24,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:24,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:24,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:24,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 602 [2020-10-28 12:53:24,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:24,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:24,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:24,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-28 12:53:24,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:24,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 12:53:24,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:24,968 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:24,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:24,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:24,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:24,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:24,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 678 [2020-10-28 12:53:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:24,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:25,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:25,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-28 12:53:25,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:25,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-28 12:53:25,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:25,022 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:25,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:25,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:25,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:25,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2020-10-28 12:53:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:25,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:25,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:25,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-28 12:53:25,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:25,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-28 12:53:25,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:25,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:25,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:25,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:25,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:25,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:25,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 975 [2020-10-28 12:53:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:25,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:25,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:25,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-28 12:53:25,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:25,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 12:53:25,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:25,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:25,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:25,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:25,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1115 [2020-10-28 12:53:25,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:25,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:25,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:25,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 183 [2020-10-28 12:53:25,317 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:25,317 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-28 12:53:25,317 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:25,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:25,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:25,318 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:25,318 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:25,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1297 [2020-10-28 12:53:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:25,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:25,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:25,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-28 12:53:25,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:25,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-28 12:53:25,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:25,415 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:25,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:25,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:25,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:25,416 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:25,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1410 [2020-10-28 12:53:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:25,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:25,490 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:25,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-28 12:53:25,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:25,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 12:53:25,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:25,492 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 12:53:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:25,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 12:53:25,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:25,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1537 [2020-10-28 12:53:25,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 12:53:25,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 12:53:25,589 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 12:53:25,589 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-28 12:53:25,589 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 12:53:25,589 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-28 12:53:25,590 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 12:53:25,590 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 12:53:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 12:53:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 12:53:25,590 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-28 12:53:25,590 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 12:53:27,617 INFO L134 CoverageAnalysis]: Checked inductivity of 8732 backedges. 816 proven. 13 refuted. 0 times theorem prover too weak. 7903 trivial. 0 not checked. [2020-10-28 12:53:27,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528659706] [2020-10-28 12:53:27,618 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 12:53:27,618 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 12:53:27,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996028519] [2020-10-28 12:53:27,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 12:53:27,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 12:53:27,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 12:53:27,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 12:53:27,624 INFO L87 Difference]: Start difference. First operand 8329 states and 8944 transitions. Second operand 5 states. [2020-10-28 12:53:29,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 12:53:29,670 INFO L93 Difference]: Finished difference Result 17577 states and 18892 transitions. [2020-10-28 12:53:29,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 12:53:29,674 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1672 [2020-10-28 12:53:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 12:53:29,676 INFO L225 Difference]: With dead ends: 17577 [2020-10-28 12:53:29,676 INFO L226 Difference]: Without dead ends: 0 [2020-10-28 12:53:29,692 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-28 12:53:29,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-28 12:53:29,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-28 12:53:29,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-28 12:53:29,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-28 12:53:29,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1672 [2020-10-28 12:53:29,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 12:53:29,693 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-28 12:53:29,693 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 12:53:29,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-28 12:53:29,693 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-28 12:53:29,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-28 12:53:29,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-28 12:53:31,018 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 280 DAG size of output: 260 [2020-10-28 12:53:32,495 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 280 DAG size of output: 260 [2020-10-28 12:53:34,526 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 261 DAG size of output: 44 [2020-10-28 12:53:34,695 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 25 [2020-10-28 12:53:36,822 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 328 DAG size of output: 58 [2020-10-28 12:53:38,666 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 261 DAG size of output: 44 [2020-10-28 12:53:39,473 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 42 [2020-10-28 12:53:39,478 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-28 12:53:39,478 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-28 12:53:39,478 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-28 12:53:39,478 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-28 12:53:39,478 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:53:39,479 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~inputA~0 |old(~inputA~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a15~0 |old(~a15~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~inputB~0 |old(~inputB~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.base| |old(#t~string7.base)|)) [2020-10-28 12:53:39,479 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:53:39,479 INFO L274 CegarLoopResult]: For program point L696(lines 696 872) no Hoare annotation was computed. [2020-10-28 12:53:39,479 INFO L274 CegarLoopResult]: For program point L168(line 168) no Hoare annotation was computed. [2020-10-28 12:53:39,480 INFO L274 CegarLoopResult]: For program point L102(line 102) no Hoare annotation was computed. [2020-10-28 12:53:39,480 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-10-28 12:53:39,480 INFO L274 CegarLoopResult]: For program point L301(lines 301 872) no Hoare annotation was computed. [2020-10-28 12:53:39,480 INFO L274 CegarLoopResult]: For program point L434(lines 434 872) no Hoare annotation was computed. [2020-10-28 12:53:39,480 INFO L274 CegarLoopResult]: For program point L368(lines 368 872) no Hoare annotation was computed. [2020-10-28 12:53:39,480 INFO L274 CegarLoopResult]: For program point L170-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,481 INFO L274 CegarLoopResult]: For program point L104-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,481 INFO L274 CegarLoopResult]: For program point L38-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,481 INFO L274 CegarLoopResult]: For program point L237(lines 237 872) no Hoare annotation was computed. [2020-10-28 12:53:39,481 INFO L274 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-10-28 12:53:39,481 INFO L274 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-10-28 12:53:39,481 INFO L274 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-10-28 12:53:39,481 INFO L274 CegarLoopResult]: For program point L766(lines 766 872) no Hoare annotation was computed. [2020-10-28 12:53:39,481 INFO L274 CegarLoopResult]: For program point L634(lines 634 872) no Hoare annotation was computed. [2020-10-28 12:53:39,482 INFO L274 CegarLoopResult]: For program point L502(lines 502 872) no Hoare annotation was computed. [2020-10-28 12:53:39,482 INFO L274 CegarLoopResult]: For program point L833(lines 833 872) no Hoare annotation was computed. [2020-10-28 12:53:39,482 INFO L274 CegarLoopResult]: For program point L173-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,482 INFO L274 CegarLoopResult]: For program point L107-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,482 INFO L274 CegarLoopResult]: For program point L41-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,482 INFO L274 CegarLoopResult]: For program point L702(lines 702 872) no Hoare annotation was computed. [2020-10-28 12:53:39,482 INFO L274 CegarLoopResult]: For program point L570(lines 570 872) no Hoare annotation was computed. [2020-10-28 12:53:39,482 INFO L274 CegarLoopResult]: For program point L174(line 174) no Hoare annotation was computed. [2020-10-28 12:53:39,482 INFO L274 CegarLoopResult]: For program point L108(line 108) no Hoare annotation was computed. [2020-10-28 12:53:39,482 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-10-28 12:53:39,482 INFO L274 CegarLoopResult]: For program point L307(lines 307 872) no Hoare annotation was computed. [2020-10-28 12:53:39,483 INFO L274 CegarLoopResult]: For program point L440(lines 440 872) no Hoare annotation was computed. [2020-10-28 12:53:39,483 INFO L274 CegarLoopResult]: For program point L374(lines 374 872) no Hoare annotation was computed. [2020-10-28 12:53:39,483 INFO L274 CegarLoopResult]: For program point L176-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,483 INFO L274 CegarLoopResult]: For program point L110-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,483 INFO L274 CegarLoopResult]: For program point L44-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,483 INFO L274 CegarLoopResult]: For program point L243(lines 243 872) no Hoare annotation was computed. [2020-10-28 12:53:39,483 INFO L274 CegarLoopResult]: For program point L177(line 177) no Hoare annotation was computed. [2020-10-28 12:53:39,483 INFO L274 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-10-28 12:53:39,483 INFO L274 CegarLoopResult]: For program point L45(line 45) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L640(lines 640 872) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L508(lines 508 872) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L839(lines 839 872) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L773(lines 773 872) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L575(lines 575 872) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L179-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L113-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L47-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L708(lines 708 872) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L180(line 180) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L114(line 114) no Hoare annotation was computed. [2020-10-28 12:53:39,484 INFO L274 CegarLoopResult]: For program point L48(line 48) no Hoare annotation was computed. [2020-10-28 12:53:39,485 INFO L274 CegarLoopResult]: For program point L313(lines 313 872) no Hoare annotation was computed. [2020-10-28 12:53:39,485 INFO L274 CegarLoopResult]: For program point L446(lines 446 872) no Hoare annotation was computed. [2020-10-28 12:53:39,485 INFO L274 CegarLoopResult]: For program point L380(lines 380 872) no Hoare annotation was computed. [2020-10-28 12:53:39,485 INFO L274 CegarLoopResult]: For program point L182-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,485 INFO L274 CegarLoopResult]: For program point L116-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,485 INFO L274 CegarLoopResult]: For program point L50-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,485 INFO L274 CegarLoopResult]: For program point L249(lines 249 872) no Hoare annotation was computed. [2020-10-28 12:53:39,485 INFO L274 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-10-28 12:53:39,485 INFO L274 CegarLoopResult]: For program point L117(line 117) no Hoare annotation was computed. [2020-10-28 12:53:39,485 INFO L274 CegarLoopResult]: For program point L51(line 51) no Hoare annotation was computed. [2020-10-28 12:53:39,486 INFO L274 CegarLoopResult]: For program point L844(lines 844 872) no Hoare annotation was computed. [2020-10-28 12:53:39,486 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,486 INFO L274 CegarLoopResult]: For program point L646(lines 646 872) no Hoare annotation was computed. [2020-10-28 12:53:39,486 INFO L274 CegarLoopResult]: For program point L514(lines 514 872) no Hoare annotation was computed. [2020-10-28 12:53:39,486 INFO L274 CegarLoopResult]: For program point L779(lines 779 872) no Hoare annotation was computed. [2020-10-28 12:53:39,486 INFO L274 CegarLoopResult]: For program point L581(lines 581 872) no Hoare annotation was computed. [2020-10-28 12:53:39,486 INFO L274 CegarLoopResult]: For program point L185-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,486 INFO L274 CegarLoopResult]: For program point L119-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,486 INFO L274 CegarLoopResult]: For program point L53-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,486 INFO L274 CegarLoopResult]: For program point L714(lines 714 872) no Hoare annotation was computed. [2020-10-28 12:53:39,486 INFO L274 CegarLoopResult]: For program point L186(line 186) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L54(line 54) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L451(lines 451 872) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L319(lines 319 872) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L386(lines 386 872) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L254(lines 254 872) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L188-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L122-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L56-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L189(line 189) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L57(line 57) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L850(lines 850 872) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L652(lines 652 872) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L520(lines 520 872) no Hoare annotation was computed. [2020-10-28 12:53:39,487 INFO L274 CegarLoopResult]: For program point L785(lines 785 872) no Hoare annotation was computed. [2020-10-28 12:53:39,488 INFO L274 CegarLoopResult]: For program point L587(lines 587 872) no Hoare annotation was computed. [2020-10-28 12:53:39,488 INFO L274 CegarLoopResult]: For program point L191-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,488 INFO L274 CegarLoopResult]: For program point L125-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,488 INFO L274 CegarLoopResult]: For program point L59-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,488 INFO L274 CegarLoopResult]: For program point L720(lines 720 872) no Hoare annotation was computed. [2020-10-28 12:53:39,488 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 22 874) the Hoare annotation is: (let ((.cse5 (= ~a24~0 |old(~a24~0)|)) (.cse8 (= ~a21~0 |old(~a21~0)|)) (.cse6 (= ~a12~0 |old(~a12~0)|)) (.cse7 (= ~a15~0 |old(~a15~0)|))) (let ((.cse1 (not (<= 9 |old(~a21~0)|))) (.cse3 (not (<= 0 (+ |old(~a12~0)| 21)))) (.cse4 (= 6 |old(~a15~0)|)) (.cse2 (not (<= |old(~a21~0)| 8))) (.cse0 (and .cse5 .cse8 .cse6 .cse7))) (and (or .cse0 .cse1 (not (<= 80 |old(~a12~0)|))) (or .cse0 (not (<= |old(~a12~0)| 73282)) .cse2 .cse3) (or (not (<= |old(~a15~0)| 6)) .cse0 .cse1 (not (<= |old(~a12~0)| 75))) (or .cse0 .cse4 .cse3) (or .cse0 .cse4 .cse2) (or (and .cse5 (= ~a21~0 8) .cse6 .cse7) (not (= 8 |old(~a21~0)|))) (or (not (<= 10 |old(~a21~0)|)) .cse0) (or (not (= 8 |old(~a15~0)|)) (and .cse5 .cse8 (= ~a15~0 8) .cse6))))) [2020-10-28 12:53:39,488 INFO L274 CegarLoopResult]: For program point L456(lines 456 872) no Hoare annotation was computed. [2020-10-28 12:53:39,488 INFO L270 CegarLoopResult]: At program point L192(line 192) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a21~0)| 8))) (.cse0 (= 6 |old(~a15~0)|)) (.cse2 (not (<= 0 (+ |old(~a12~0)| 21)))) (.cse3 (not (<= 9 |old(~a21~0)|)))) (and (not (<= 10 |old(~a21~0)|)) (not (= 8 |old(~a21~0)|)) (or .cse0 .cse1) (not (= 8 |old(~a15~0)|)) (or (not (<= |old(~a12~0)| 73282)) .cse1 .cse2) (or .cse3 (not (<= 80 |old(~a12~0)|))) (or .cse0 .cse2) (or (not (<= |old(~a15~0)| 6)) .cse3 (not (<= |old(~a12~0)| 75))))) [2020-10-28 12:53:39,488 INFO L274 CegarLoopResult]: For program point L192-1(line 192) no Hoare annotation was computed. [2020-10-28 12:53:39,488 INFO L274 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-10-28 12:53:39,488 INFO L274 CegarLoopResult]: For program point L60(line 60) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L325(lines 325 872) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L392(lines 392 872) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L260(lines 260 872) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L194-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L128-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L62-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L195(line 195) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L856(lines 856 872) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L658(lines 658 872) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L526(lines 526 872) no Hoare annotation was computed. [2020-10-28 12:53:39,489 INFO L274 CegarLoopResult]: For program point L791(lines 791 872) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L593(lines 593 872) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L197-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L131-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L65-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L726(lines 726 872) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L462(lines 462 872) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L331(lines 331 872) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L398(lines 398 872) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L266(lines 266 872) no Hoare annotation was computed. [2020-10-28 12:53:39,490 INFO L274 CegarLoopResult]: For program point L200-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L134-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L68-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L861(lines 861 872) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L664(lines 664 872) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L532(lines 532 872) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L797(lines 797 872) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L599(lines 599 872) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L203-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L137-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,491 INFO L274 CegarLoopResult]: For program point L71-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,492 INFO L274 CegarLoopResult]: For program point L732(lines 732 872) no Hoare annotation was computed. [2020-10-28 12:53:39,492 INFO L274 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-10-28 12:53:39,492 INFO L274 CegarLoopResult]: For program point L138(line 138) no Hoare annotation was computed. [2020-10-28 12:53:39,492 INFO L274 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-10-28 12:53:39,492 INFO L274 CegarLoopResult]: For program point L469(lines 469 872) no Hoare annotation was computed. [2020-10-28 12:53:39,492 INFO L274 CegarLoopResult]: For program point L337(lines 337 872) no Hoare annotation was computed. [2020-10-28 12:53:39,492 INFO L274 CegarLoopResult]: For program point L271(lines 271 872) no Hoare annotation was computed. [2020-10-28 12:53:39,492 INFO L274 CegarLoopResult]: For program point L404(lines 404 872) no Hoare annotation was computed. [2020-10-28 12:53:39,492 INFO L274 CegarLoopResult]: For program point L140-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,492 INFO L274 CegarLoopResult]: For program point L74-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,492 INFO L274 CegarLoopResult]: For program point L867(lines 867 872) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L141(line 141) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L670(lines 670 872) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L538(lines 538 872) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L803(lines 803 872) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L737(lines 737 872) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L605(lines 605 872) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L143-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L77-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L474(lines 474 872) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L144(line 144) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L78(line 78) no Hoare annotation was computed. [2020-10-28 12:53:39,493 INFO L274 CegarLoopResult]: For program point L343(lines 343 872) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L277(lines 277 872) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L410(lines 410 872) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L146-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L80-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L543(lines 543 872) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L213(lines 213 872) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L147(line 147) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L676(lines 676 872) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L809(lines 809 872) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L743(lines 743 872) no Hoare annotation was computed. [2020-10-28 12:53:39,494 INFO L274 CegarLoopResult]: For program point L611(lines 611 872) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L149-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L83-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L480(lines 480 872) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L282(lines 282 872) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L150(line 150) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L679(lines 679 872) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L349(lines 349 872) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L416(lines 416 872) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L152-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L86-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,495 INFO L274 CegarLoopResult]: For program point L549(lines 549 872) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L219(lines 219 872) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L153(line 153) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L749(lines 749 872) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L617(lines 617 872) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L155-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L89-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L23(lines 23 25) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L23-2(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L816(lines 816 872) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L486(lines 486 872) no Hoare annotation was computed. [2020-10-28 12:53:39,496 INFO L274 CegarLoopResult]: For program point L288(lines 288 872) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L156(line 156) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L685(lines 685 872) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L355(lines 355 872) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L554(lines 554 872) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L422(lines 422 872) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L158-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L92-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L26-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L225(lines 225 872) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L159(line 159) no Hoare annotation was computed. [2020-10-28 12:53:39,497 INFO L274 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L754(lines 754 872) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L821(lines 821 872) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L623(lines 623 872) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L557(lines 557 872) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L161-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L95-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L29-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L690(lines 690 872) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L492(lines 492 872) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L162(line 162) no Hoare annotation was computed. [2020-10-28 12:53:39,498 INFO L274 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L361(lines 361 872) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L295(lines 295 872) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L428(lines 428 872) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L164-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L98-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L32-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L231(lines 231 872) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L99(line 99) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L760(lines 760 872) no Hoare annotation was computed. [2020-10-28 12:53:39,499 INFO L274 CegarLoopResult]: For program point L628(lines 628 872) no Hoare annotation was computed. [2020-10-28 12:53:39,500 INFO L274 CegarLoopResult]: For program point L827(lines 827 872) no Hoare annotation was computed. [2020-10-28 12:53:39,500 INFO L274 CegarLoopResult]: For program point L563(lines 563 872) no Hoare annotation was computed. [2020-10-28 12:53:39,500 INFO L274 CegarLoopResult]: For program point L497(lines 497 872) no Hoare annotation was computed. [2020-10-28 12:53:39,500 INFO L274 CegarLoopResult]: For program point L167-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,500 INFO L274 CegarLoopResult]: For program point L101-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,500 INFO L274 CegarLoopResult]: For program point L35-1(lines 22 874) no Hoare annotation was computed. [2020-10-28 12:53:39,500 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-28 12:53:39,500 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a15~0 8) (= 7 ~a21~0) (= (+ ~a12~0 49) 0)) [2020-10-28 12:53:39,500 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-28 12:53:39,500 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-28 12:53:39,500 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 876 892) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= (+ |old(~a12~0)| 49) 0)) (and (= ~a24~0 |old(~a24~0)|) (= ~a15~0 8) (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0)) (not (= 8 |old(~a15~0)|))) [2020-10-28 12:53:39,501 INFO L270 CegarLoopResult]: At program point L890(line 890) the Hoare annotation is: (let ((.cse2 (<= 9 ~a21~0)) (.cse0 (<= 0 (+ ~a12~0 21))) (.cse3 (not (= ~a15~0 6))) (.cse1 (<= ~a21~0 8))) (or (not (= (+ |old(~a12~0)| 49) 0)) (not (= 7 |old(~a21~0)|)) (and .cse0 (<= ~a12~0 73282) .cse1) (and .cse2 (<= ~a12~0 75) (<= ~a15~0 6)) (and .cse2 (<= 80 ~a12~0)) (and .cse0 .cse3) (and .cse3 .cse1) (not (= 8 |old(~a15~0)|)) (= ~a21~0 8) (<= 10 ~a21~0) (= ~a15~0 |old(~a15~0)|))) [2020-10-28 12:53:39,501 INFO L274 CegarLoopResult]: For program point L890-1(line 890) no Hoare annotation was computed. [2020-10-28 12:53:39,501 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:53:39,501 INFO L274 CegarLoopResult]: For program point L887(line 887) no Hoare annotation was computed. [2020-10-28 12:53:39,501 INFO L270 CegarLoopResult]: At program point L882-2(lines 882 891) the Hoare annotation is: (let ((.cse2 (<= 9 ~a21~0)) (.cse0 (<= 0 (+ ~a12~0 21))) (.cse3 (not (= ~a15~0 6))) (.cse1 (<= ~a21~0 8))) (or (not (= (+ |old(~a12~0)| 49) 0)) (not (= 7 |old(~a21~0)|)) (and .cse0 (<= ~a12~0 73282) .cse1) (and .cse2 (<= ~a12~0 75) (<= ~a15~0 6)) (and .cse2 (<= 80 ~a12~0)) (and .cse0 .cse3) (and .cse3 .cse1) (not (= 8 |old(~a15~0)|)) (= ~a21~0 8) (<= 10 ~a21~0) (= ~a15~0 |old(~a15~0)|))) [2020-10-28 12:53:39,501 INFO L274 CegarLoopResult]: For program point L882-3(lines 876 892) no Hoare annotation was computed. [2020-10-28 12:53:39,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 12:53:39 BoogieIcfgContainer [2020-10-28 12:53:39,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 12:53:39,526 INFO L168 Benchmark]: Toolchain (without parser) took 212032.84 ms. Allocated memory was 151.0 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 124.9 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2020-10-28 12:53:39,527 INFO L168 Benchmark]: CDTParser took 0.73 ms. Allocated memory is still 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 12:53:39,527 INFO L168 Benchmark]: CACSL2BoogieTranslator took 869.35 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.8 MB in the end (delta: -497.0 kB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. [2020-10-28 12:53:39,528 INFO L168 Benchmark]: Boogie Preprocessor took 167.89 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 119.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-10-28 12:53:39,528 INFO L168 Benchmark]: RCFGBuilder took 1835.08 ms. Allocated memory is still 151.0 MB. Free memory was 119.0 MB in the beginning and 62.6 MB in the end (delta: 56.4 MB). Peak memory consumption was 60.0 MB. Max. memory is 8.0 GB. [2020-10-28 12:53:39,529 INFO L168 Benchmark]: TraceAbstraction took 209147.98 ms. Allocated memory was 151.0 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 62.1 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. [2020-10-28 12:53:39,531 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.73 ms. Allocated memory is still 151.0 MB. Free memory is still 124.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 869.35 ms. Allocated memory is still 151.0 MB. Free memory was 124.3 MB in the beginning and 124.8 MB in the end (delta: -497.0 kB). Peak memory consumption was 29.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 167.89 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 119.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1835.08 ms. Allocated memory is still 151.0 MB. Free memory was 119.0 MB in the beginning and 62.6 MB in the end (delta: 56.4 MB). Peak memory consumption was 60.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 209147.98 ms. Allocated memory was 151.0 MB in the beginning and 2.9 GB in the end (delta: 2.8 GB). Free memory was 62.1 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 1.2 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 882]: Loop Invariant Derived loop invariant: (((((((((!(\old(a12) + 49 == 0) || !(7 == \old(a21))) || ((0 <= a12 + 21 && a12 <= 73282) && a21 <= 8)) || ((9 <= a21 && a12 <= 75) && a15 <= 6)) || (9 <= a21 && 80 <= a12)) || (0 <= a12 + 21 && !(a15 == 6))) || (!(a15 == 6) && a21 <= 8)) || !(8 == \old(a15))) || a21 == 8) || 10 <= a21) || a15 == \old(a15) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 199.2s, OverallIterations: 22, TraceHistogramMax: 14, AutomataDifference: 56.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 622 SDtfs, 13109 SDslu, 842 SDs, 0 SdLazy, 23893 SolverSat, 2462 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 39.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 607 GetRequests, 396 SyntacticMatches, 5 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8331occurred in iteration=20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.7s AutomataMinimizationTime, 22 MinimizatonAttempts, 3110 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 1166 PreInvPairs, 1290 NumberOfFragments, 488 HoareAnnotationTreeSize, 1166 FomulaSimplifications, 739378 FormulaSimplificationTreeSizeReduction, 3.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 154268 FormulaSimplificationTreeSizeReductionInter, 6.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 119.8s InterpolantComputationTime, 18108 NumberOfCodeBlocks, 18108 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 18086 ConstructedInterpolants, 0 QuantifiedInterpolants, 34640480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 22 InterpolantComputations, 2 PerfectInterpolantSequences, 57420/59976 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct!