/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:48:05,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:48:05,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:48:05,849 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:48:05,849 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:48:05,856 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:48:05,858 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:48:05,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:48:05,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:48:05,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:48:05,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:48:05,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:48:05,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:48:05,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:48:05,879 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:48:05,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:48:05,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:48:05,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:48:05,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:48:05,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:48:05,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:48:05,889 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:48:05,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:48:05,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:48:05,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:48:05,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:48:05,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:48:05,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:48:05,896 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:48:05,897 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:48:05,898 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:48:05,899 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:48:05,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:48:05,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:48:05,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:48:05,902 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:48:05,903 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:48:05,903 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:48:05,903 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:48:05,904 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:48:05,905 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:48:05,906 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 04:48:05,947 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:48:05,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:48:05,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:48:05,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:48:05,951 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:48:05,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:48:05,952 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:48:05,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:48:05,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:48:05,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:48:05,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:48:05,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:48:05,953 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:48:05,954 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:48:05,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:48:05,954 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:48:05,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:48:05,954 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:48:05,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:48:05,955 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:48:05,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:48:05,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:48:05,955 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:48:05,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:48:05,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:48:05,957 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:48:05,957 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:48:05,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:48:05,958 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:48:05,958 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:48:06,381 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:48:06,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:48:06,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:48:06,419 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:48:06,419 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:48:06,420 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label56.c [2020-10-29 04:48:06,509 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/923d80bfa/94359050996a440a986a9bb034adba9d/FLAG251f3c8fe [2020-10-29 04:48:07,306 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:48:07,307 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label56.c [2020-10-29 04:48:07,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/923d80bfa/94359050996a440a986a9bb034adba9d/FLAG251f3c8fe [2020-10-29 04:48:07,557 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/923d80bfa/94359050996a440a986a9bb034adba9d [2020-10-29 04:48:07,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:48:07,570 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:48:07,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:48:07,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:48:07,578 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:48:07,579 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:48:07" (1/1) ... [2020-10-29 04:48:07,585 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c34af26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:07, skipping insertion in model container [2020-10-29 04:48:07,585 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:48:07" (1/1) ... [2020-10-29 04:48:07,593 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:48:07,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:48:08,086 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:48:08,113 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:48:08,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:48:08,291 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:48:08,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:08 WrapperNode [2020-10-29 04:48:08,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:48:08,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:48:08,294 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:48:08,294 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:48:08,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:08" (1/1) ... [2020-10-29 04:48:08,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:08" (1/1) ... [2020-10-29 04:48:08,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:08" (1/1) ... [2020-10-29 04:48:08,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:08" (1/1) ... [2020-10-29 04:48:08,375 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:08" (1/1) ... [2020-10-29 04:48:08,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:08" (1/1) ... [2020-10-29 04:48:08,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:08" (1/1) ... [2020-10-29 04:48:08,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:48:08,406 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:48:08,406 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:48:08,406 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:48:08,407 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:08" (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 [2020-10-29 04:48:08,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:48:08,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:48:08,500 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:48:08,500 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 04:48:08,501 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:48:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 04:48:08,501 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:48:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:48:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:48:08,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:48:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:48:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 04:48:08,503 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:48:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:48:08,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:48:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:48:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:48:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:48:08,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:48:09,854 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:48:09,854 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 04:48:09,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:48:09 BoogieIcfgContainer [2020-10-29 04:48:09,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:48:09,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:48:09,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:48:09,863 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:48:09,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:48:07" (1/3) ... [2020-10-29 04:48:09,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3119a76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:48:09, skipping insertion in model container [2020-10-29 04:48:09,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:48:08" (2/3) ... [2020-10-29 04:48:09,865 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3119a76d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:48:09, skipping insertion in model container [2020-10-29 04:48:09,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:48:09" (3/3) ... [2020-10-29 04:48:09,867 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label56.c [2020-10-29 04:48:09,879 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:48:09,885 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:48:09,899 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:48:09,933 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:48:09,933 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:48:09,933 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:48:09,934 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:48:09,934 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:48:09,934 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:48:09,934 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:48:09,934 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:48:09,969 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-29 04:48:09,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-29 04:48:09,984 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:09,986 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:48:09,986 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:09,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:09,998 INFO L82 PathProgramCache]: Analyzing trace with hash -2114012957, now seen corresponding path program 1 times [2020-10-29 04:48:10,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:10,009 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115255657] [2020-10-29 04:48:10,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:10,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:10,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:12,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:12,337 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-29 04:48:12,338 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:48:12,338 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2028 [2020-10-29 04:48:12,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:12,341 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:12,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:48:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:48:12,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-29 04:48:12,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:48:12,763 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 04:48:12,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:12,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:12,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:12,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:12,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:12,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 04:48:12,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:12,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:12,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:48:12,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:12,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:48:12,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115255657] [2020-10-29 04:48:12,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:48:12,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 04:48:12,843 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883349748] [2020-10-29 04:48:12,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:48:12,848 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:12,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:48:12,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:48:12,865 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-29 04:48:13,044 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 04:48:14,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:14,650 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-29 04:48:14,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:48:14,652 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 83 [2020-10-29 04:48:14,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:14,667 INFO L225 Difference]: With dead ends: 562 [2020-10-29 04:48:14,667 INFO L226 Difference]: Without dead ends: 287 [2020-10-29 04:48:14,674 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:48:14,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-29 04:48:14,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-29 04:48:14,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-29 04:48:14,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-29 04:48:14,754 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 83 [2020-10-29 04:48:14,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:14,756 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-29 04:48:14,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:48:14,757 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-29 04:48:14,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-10-29 04:48:14,763 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:14,765 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:48:14,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:48:14,766 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:14,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:14,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1213447394, now seen corresponding path program 1 times [2020-10-29 04:48:14,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:14,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1072946542] [2020-10-29 04:48:14,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:14,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:14,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:15,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:15,269 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:16,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:16,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-29 04:48:16,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:48:16,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2182 [2020-10-29 04:48:16,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:16,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:48:16,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 04:48:16,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:17,165 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 04:48:17,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:17,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:17,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:17,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:17,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:17,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:17,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:48:17,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:17,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:17,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:17,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:17,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:17,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:17,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:17,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:17,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:17,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 04:48:17,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:17,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:48:17,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:17,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:17,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:17,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:17,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 04:48:17,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:17,245 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:48:17,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1072946542] [2020-10-29 04:48:17,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:17,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:48:17,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1385264586] [2020-10-29 04:48:17,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:48:17,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:17,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:48:17,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:48:17,249 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 5 states. [2020-10-29 04:48:18,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:18,573 INFO L93 Difference]: Finished difference Result 836 states and 1208 transitions. [2020-10-29 04:48:18,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:48:18,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2020-10-29 04:48:18,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:18,583 INFO L225 Difference]: With dead ends: 836 [2020-10-29 04:48:18,584 INFO L226 Difference]: Without dead ends: 561 [2020-10-29 04:48:18,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:48:18,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2020-10-29 04:48:18,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 555. [2020-10-29 04:48:18,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-10-29 04:48:18,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 760 transitions. [2020-10-29 04:48:18,627 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 760 transitions. Word has length 92 [2020-10-29 04:48:18,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:18,627 INFO L481 AbstractCegarLoop]: Abstraction has 555 states and 760 transitions. [2020-10-29 04:48:18,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:48:18,628 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 760 transitions. [2020-10-29 04:48:18,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-29 04:48:18,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:18,632 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-29 04:48:18,633 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:48:18,633 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:18,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:18,633 INFO L82 PathProgramCache]: Analyzing trace with hash 827002994, now seen corresponding path program 1 times [2020-10-29 04:48:18,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:18,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [599690135] [2020-10-29 04:48:18,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:18,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:18,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:19,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:19,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-29 04:48:19,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:48:19,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 838 [2020-10-29 04:48:19,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:19,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:19,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:19,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-29 04:48:19,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 04:48:19,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:19,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:19,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:19,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:19,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:19,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:19,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:19,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:48:19,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:19,681 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:19,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:19,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:19,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:19,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:19,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:19,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:19,735 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:19,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-29 04:48:19,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:19,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 04:48:19,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:19,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:19,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:19,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:19,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 04:48:19,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:19,764 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:48:19,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [599690135] [2020-10-29 04:48:19,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:19,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:48:19,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818449457] [2020-10-29 04:48:19,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:48:19,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:19,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:48:19,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:48:19,767 INFO L87 Difference]: Start difference. First operand 555 states and 760 transitions. Second operand 5 states. [2020-10-29 04:48:21,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:21,107 INFO L93 Difference]: Finished difference Result 1652 states and 2305 transitions. [2020-10-29 04:48:21,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:48:21,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-10-29 04:48:21,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:21,115 INFO L225 Difference]: With dead ends: 1652 [2020-10-29 04:48:21,115 INFO L226 Difference]: Without dead ends: 1103 [2020-10-29 04:48:21,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:48:21,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-10-29 04:48:21,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1103. [2020-10-29 04:48:21,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-10-29 04:48:21,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1412 transitions. [2020-10-29 04:48:21,168 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1412 transitions. Word has length 100 [2020-10-29 04:48:21,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:21,168 INFO L481 AbstractCegarLoop]: Abstraction has 1103 states and 1412 transitions. [2020-10-29 04:48:21,169 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:48:21,169 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1412 transitions. [2020-10-29 04:48:21,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-10-29 04:48:21,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:21,174 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 04:48:21,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:48:21,175 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:21,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:21,175 INFO L82 PathProgramCache]: Analyzing trace with hash 843515611, now seen corresponding path program 1 times [2020-10-29 04:48:21,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:21,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [442154574] [2020-10-29 04:48:21,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:21,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:21,271 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:21,348 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:24,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:25,344 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:26,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:26,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-29 04:48:26,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:48:26,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5017 [2020-10-29 04:48:26,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:26,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:26,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:26,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-29 04:48:26,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 04:48:26,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:26,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:26,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:26,370 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:26,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:26,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:26,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:26,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:48:26,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:26,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:26,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:26,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-29 04:48:26,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:26,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:26,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:26,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:26,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:48:26,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:26,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:48:26,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:26,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:26,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:26,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:26,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:26,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-29 04:48:26,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:48:26,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:26,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:26,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:26,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-29 04:48:26,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:26,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 04:48:26,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:26,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:26,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:26,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:26,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 04:48:26,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:26,512 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-29 04:48:26,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [442154574] [2020-10-29 04:48:26,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:26,515 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:48:26,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082474339] [2020-10-29 04:48:26,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:48:26,516 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:26,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:48:26,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:48:26,517 INFO L87 Difference]: Start difference. First operand 1103 states and 1412 transitions. Second operand 5 states. [2020-10-29 04:48:28,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:28,071 INFO L93 Difference]: Finished difference Result 2202 states and 2891 transitions. [2020-10-29 04:48:28,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:48:28,072 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 117 [2020-10-29 04:48:28,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:28,080 INFO L225 Difference]: With dead ends: 2202 [2020-10-29 04:48:28,081 INFO L226 Difference]: Without dead ends: 1240 [2020-10-29 04:48:28,083 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:48:28,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2020-10-29 04:48:28,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1105. [2020-10-29 04:48:28,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1105 states. [2020-10-29 04:48:28,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 1391 transitions. [2020-10-29 04:48:28,125 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 1391 transitions. Word has length 117 [2020-10-29 04:48:28,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:28,125 INFO L481 AbstractCegarLoop]: Abstraction has 1105 states and 1391 transitions. [2020-10-29 04:48:28,125 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:48:28,126 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 1391 transitions. [2020-10-29 04:48:28,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-29 04:48:28,129 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:28,130 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:48:28,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:48:28,130 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:28,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:28,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1340848921, now seen corresponding path program 1 times [2020-10-29 04:48:28,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:28,131 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1505538402] [2020-10-29 04:48:28,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:28,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:28,255 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:28,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:28,878 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:29,906 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:30,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:30,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-29 04:48:30,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:48:30,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1855 [2020-10-29 04:48:30,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:30,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:48:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:48:30,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-29 04:48:30,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:30,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:30,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:30,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:30,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:30,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:30,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:30,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:48:30,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:30,193 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:30,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:30,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:30,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:30,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:30,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:30,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:30,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:30,233 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:30,234 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:48:30,234 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:30,234 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:48:30,234 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:30,235 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:30,235 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:48:30,235 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:30,239 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:48:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:30,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:30,298 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:30,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:30,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 04:48:30,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:48:30,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 99 [2020-10-29 04:48:30,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:30,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:30,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:30,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-29 04:48:30,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:30,400 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-29 04:48:30,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1505538402] [2020-10-29 04:48:30,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:30,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:48:30,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4003906] [2020-10-29 04:48:30,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:48:30,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:30,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:48:30,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:48:30,402 INFO L87 Difference]: Start difference. First operand 1105 states and 1391 transitions. Second operand 5 states. [2020-10-29 04:48:31,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:31,839 INFO L93 Difference]: Finished difference Result 2617 states and 3383 transitions. [2020-10-29 04:48:31,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:48:31,840 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-10-29 04:48:31,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:31,849 INFO L225 Difference]: With dead ends: 2617 [2020-10-29 04:48:31,850 INFO L226 Difference]: Without dead ends: 1653 [2020-10-29 04:48:31,852 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:48:31,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2020-10-29 04:48:31,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1381. [2020-10-29 04:48:31,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1381 states. [2020-10-29 04:48:31,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1381 states to 1381 states and 1689 transitions. [2020-10-29 04:48:31,901 INFO L78 Accepts]: Start accepts. Automaton has 1381 states and 1689 transitions. Word has length 139 [2020-10-29 04:48:31,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:31,901 INFO L481 AbstractCegarLoop]: Abstraction has 1381 states and 1689 transitions. [2020-10-29 04:48:31,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:48:31,901 INFO L276 IsEmpty]: Start isEmpty. Operand 1381 states and 1689 transitions. [2020-10-29 04:48:31,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-29 04:48:31,906 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:31,906 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:48:31,906 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:48:31,906 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:31,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:31,907 INFO L82 PathProgramCache]: Analyzing trace with hash 72881693, now seen corresponding path program 1 times [2020-10-29 04:48:31,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:31,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779548036] [2020-10-29 04:48:31,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:31,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:32,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:32,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:32,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 165 [2020-10-29 04:48:32,805 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:48:32,805 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 871 [2020-10-29 04:48:32,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:32,806 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:48:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:48:32,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-29 04:48:32,806 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:32,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:32,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:32,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:32,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:32,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:32,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:32,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:48:32,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:32,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:32,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:48:32,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:32,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:32,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:32,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:32,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:32,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:32,987 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:48:32,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:48:32,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 04:48:32,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:32,988 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:32,988 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:32,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:48:32,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-29 04:48:32,989 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:33,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 04:48:33,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:33,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:33,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:33,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:48:33,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:33,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 04:48:33,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:33,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:48:33,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 04:48:33,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:33,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 04:48:33,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:33,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:33,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:33,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 04:48:33,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:33,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-29 04:48:33,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:33,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:33,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:33,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-29 04:48:33,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:33,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 62 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-29 04:48:33,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779548036] [2020-10-29 04:48:33,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:33,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:48:33,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071219328] [2020-10-29 04:48:33,281 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:48:33,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:33,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:48:33,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:48:33,283 INFO L87 Difference]: Start difference. First operand 1381 states and 1689 transitions. Second operand 8 states. [2020-10-29 04:48:35,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:35,105 INFO L93 Difference]: Finished difference Result 2776 states and 3400 transitions. [2020-10-29 04:48:35,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 04:48:35,105 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 149 [2020-10-29 04:48:35,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:35,113 INFO L225 Difference]: With dead ends: 2776 [2020-10-29 04:48:35,113 INFO L226 Difference]: Without dead ends: 1397 [2020-10-29 04:48:35,116 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:48:35,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1397 states. [2020-10-29 04:48:35,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1397 to 1256. [2020-10-29 04:48:35,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1256 states. [2020-10-29 04:48:35,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1256 states to 1256 states and 1452 transitions. [2020-10-29 04:48:35,156 INFO L78 Accepts]: Start accepts. Automaton has 1256 states and 1452 transitions. Word has length 149 [2020-10-29 04:48:35,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:35,157 INFO L481 AbstractCegarLoop]: Abstraction has 1256 states and 1452 transitions. [2020-10-29 04:48:35,157 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:48:35,157 INFO L276 IsEmpty]: Start isEmpty. Operand 1256 states and 1452 transitions. [2020-10-29 04:48:35,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-29 04:48:35,161 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:35,161 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:48:35,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:48:35,162 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:35,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:35,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1120569632, now seen corresponding path program 1 times [2020-10-29 04:48:35,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:35,163 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278168374] [2020-10-29 04:48:35,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:35,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:35,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:35,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:36,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:36,042 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-29 04:48:36,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:48:36,043 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 852 [2020-10-29 04:48:36,043 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:36,043 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:36,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:48:36,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 04:48:36,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 04:48:36,044 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:36,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:36,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:36,191 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:36,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:36,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:36,196 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:36,196 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:48:36,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:36,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:36,197 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:36,197 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:36,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:36,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:36,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:36,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:36,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:48:36,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:36,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:48:36,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:36,228 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:36,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 04:48:36,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:36,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-29 04:48:36,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:36,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:36,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:36,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:36,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 04:48:36,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:48:36,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-29 04:48:36,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:36,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:36,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:36,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:48:36,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 04:48:36,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:36,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-29 04:48:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:36,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:36,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:36,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:48:36,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:36,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 04:48:36,341 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:36,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:48:36,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 04:48:36,342 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:36,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-29 04:48:36,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:36,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:36,404 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:36,404 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 04:48:36,404 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:36,405 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 04:48:36,405 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:36,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-29 04:48:36,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:36,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:36,461 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 85 proven. 26 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-29 04:48:36,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278168374] [2020-10-29 04:48:36,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:36,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:48:36,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38266445] [2020-10-29 04:48:36,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:48:36,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:36,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:48:36,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:48:36,464 INFO L87 Difference]: Start difference. First operand 1256 states and 1452 transitions. Second operand 8 states. [2020-10-29 04:48:38,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:38,035 INFO L93 Difference]: Finished difference Result 3076 states and 3605 transitions. [2020-10-29 04:48:38,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 04:48:38,035 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 162 [2020-10-29 04:48:38,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:38,050 INFO L225 Difference]: With dead ends: 3076 [2020-10-29 04:48:38,050 INFO L226 Difference]: Without dead ends: 1826 [2020-10-29 04:48:38,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:48:38,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2020-10-29 04:48:38,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1673. [2020-10-29 04:48:38,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1673 states. [2020-10-29 04:48:38,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1673 states to 1673 states and 1899 transitions. [2020-10-29 04:48:38,126 INFO L78 Accepts]: Start accepts. Automaton has 1673 states and 1899 transitions. Word has length 162 [2020-10-29 04:48:38,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:38,126 INFO L481 AbstractCegarLoop]: Abstraction has 1673 states and 1899 transitions. [2020-10-29 04:48:38,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:48:38,127 INFO L276 IsEmpty]: Start isEmpty. Operand 1673 states and 1899 transitions. [2020-10-29 04:48:38,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-29 04:48:38,132 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:38,133 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, 2, 2, 2, 2, 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] [2020-10-29 04:48:38,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:48:38,133 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:38,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:38,134 INFO L82 PathProgramCache]: Analyzing trace with hash -400482824, now seen corresponding path program 1 times [2020-10-29 04:48:38,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:38,135 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147460232] [2020-10-29 04:48:38,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:38,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:38,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:38,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:38,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:40,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:40,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-29 04:48:40,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:48:40,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2498 [2020-10-29 04:48:40,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:40,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:40,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 103 [2020-10-29 04:48:40,663 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-29 04:48:40,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:40,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:40,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:40,813 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:40,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:40,818 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:40,818 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:40,818 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:48:40,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:40,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:40,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:40,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:40,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:40,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:40,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:40,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:40,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:40,855 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 04:48:40,855 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:40,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:48:40,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:40,856 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:40,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:40,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:40,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:40,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:40,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 04:48:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:40,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:40,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:40,937 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 04:48:40,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:40,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 04:48:40,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:40,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:40,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-29 04:48:40,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:41,000 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-10-29 04:48:41,002 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147460232] [2020-10-29 04:48:41,002 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:41,002 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:48:41,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766589553] [2020-10-29 04:48:41,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:48:41,003 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:41,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:48:41,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:48:41,005 INFO L87 Difference]: Start difference. First operand 1673 states and 1899 transitions. Second operand 5 states. [2020-10-29 04:48:42,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:42,508 INFO L93 Difference]: Finished difference Result 3894 states and 4456 transitions. [2020-10-29 04:48:42,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:48:42,509 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2020-10-29 04:48:42,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:42,517 INFO L225 Difference]: With dead ends: 3894 [2020-10-29 04:48:42,517 INFO L226 Difference]: Without dead ends: 1679 [2020-10-29 04:48:42,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:48:42,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1679 states. [2020-10-29 04:48:42,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1679 to 1534. [2020-10-29 04:48:42,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1534 states. [2020-10-29 04:48:42,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1534 states to 1534 states and 1735 transitions. [2020-10-29 04:48:42,580 INFO L78 Accepts]: Start accepts. Automaton has 1534 states and 1735 transitions. Word has length 174 [2020-10-29 04:48:42,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:42,580 INFO L481 AbstractCegarLoop]: Abstraction has 1534 states and 1735 transitions. [2020-10-29 04:48:42,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:48:42,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1534 states and 1735 transitions. [2020-10-29 04:48:42,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-29 04:48:42,586 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:42,586 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-29 04:48:42,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:48:42,586 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:42,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:42,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1195258914, now seen corresponding path program 1 times [2020-10-29 04:48:42,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:42,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1455200682] [2020-10-29 04:48:42,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:42,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:42,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:44,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:44,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 244 [2020-10-29 04:48:44,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:48:44,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1603 [2020-10-29 04:48:44,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:44,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 04:48:44,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-29 04:48:44,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:44,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:44,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:44,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:44,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:44,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:44,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:48:44,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:44,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:44,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:44,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:44,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:44,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:44,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:44,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:44,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:44,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:44,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-29 04:48:44,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:44,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 04:48:44,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:44,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:44,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 04:48:44,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:44,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-29 04:48:44,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:44,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:44,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:44,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-29 04:48:44,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:44,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-29 04:48:44,520 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:44,520 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:44,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:44,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:48:44,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 04:48:44,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:44,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-29 04:48:44,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:44,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:44,575 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:44,575 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 04:48:44,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:44,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:48:44,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:44,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 04:48:44,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:44,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:44,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-29 04:48:44,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:44,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:44,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:44,595 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:48:44,595 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:44,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:48:44,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:44,596 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:44,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:44,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:48:44,596 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:44,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:44,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-29 04:48:44,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:44,616 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:44,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:44,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 04:48:44,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:44,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 04:48:44,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:44,636 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-29 04:48:44,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:44,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:44,732 INFO L134 CoverageAnalysis]: Checked inductivity of 304 backedges. 154 proven. 64 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-29 04:48:44,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1455200682] [2020-10-29 04:48:44,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:44,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:48:44,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881091606] [2020-10-29 04:48:44,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:48:44,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:44,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:48:44,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:48:44,741 INFO L87 Difference]: Start difference. First operand 1534 states and 1735 transitions. Second operand 8 states. [2020-10-29 04:48:47,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:47,047 INFO L93 Difference]: Finished difference Result 4158 states and 4763 transitions. [2020-10-29 04:48:47,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 04:48:47,048 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 224 [2020-10-29 04:48:47,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:47,062 INFO L225 Difference]: With dead ends: 4158 [2020-10-29 04:48:47,062 INFO L226 Difference]: Without dead ends: 2630 [2020-10-29 04:48:47,067 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-10-29 04:48:47,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2630 states. [2020-10-29 04:48:47,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2630 to 1953. [2020-10-29 04:48:47,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1953 states. [2020-10-29 04:48:47,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1953 states to 1953 states and 2209 transitions. [2020-10-29 04:48:47,141 INFO L78 Accepts]: Start accepts. Automaton has 1953 states and 2209 transitions. Word has length 224 [2020-10-29 04:48:47,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:47,142 INFO L481 AbstractCegarLoop]: Abstraction has 1953 states and 2209 transitions. [2020-10-29 04:48:47,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:48:47,142 INFO L276 IsEmpty]: Start isEmpty. Operand 1953 states and 2209 transitions. [2020-10-29 04:48:47,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-29 04:48:47,149 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:47,149 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 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, 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] [2020-10-29 04:48:47,149 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 04:48:47,150 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:47,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:47,150 INFO L82 PathProgramCache]: Analyzing trace with hash -1861957794, now seen corresponding path program 1 times [2020-10-29 04:48:47,150 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:47,150 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1409071355] [2020-10-29 04:48:47,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:47,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:47,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:48,785 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:48,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 258 [2020-10-29 04:48:48,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:48:48,786 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1604 [2020-10-29 04:48:48,786 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:48,786 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:48,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:48,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-29 04:48:48,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-29 04:48:48,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:48,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:48:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:48,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:48,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:48,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:48:48,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:48,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:48:48,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:48,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:48,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:48,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:48,949 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:48:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:48,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:49,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:49,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 04:48:49,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:49,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-29 04:48:49,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:49,013 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:48:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:48:49,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-29 04:48:49,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:48:49,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 04:48:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:49,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:49,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:49,106 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-29 04:48:49,106 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:49,106 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-29 04:48:49,106 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:49,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:48:49,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:48:49,107 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-29 04:48:49,107 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:49,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-29 04:48:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:49,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:49,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:49,163 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 04:48:49,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:49,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:48:49,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:49,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:49,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:49,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-29 04:48:49,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:49,164 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:49,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 04:48:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:49,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:49,180 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:49,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:48:49,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:49,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:48:49,181 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:49,181 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:48:49,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:49,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:49,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-10-29 04:48:49,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:48:49,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:48:49,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:48:49,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 04:48:49,220 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:48:49,220 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 04:48:49,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:48:49,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:48:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:48:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-29 04:48:49,221 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:48:49,221 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:48:49,300 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 182 proven. 64 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2020-10-29 04:48:49,301 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1409071355] [2020-10-29 04:48:49,301 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:48:49,301 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:48:49,301 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286451707] [2020-10-29 04:48:49,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:48:49,302 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:48:49,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:48:49,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:48:49,306 INFO L87 Difference]: Start difference. First operand 1953 states and 2209 transitions. Second operand 7 states. [2020-10-29 04:48:50,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:48:50,961 INFO L93 Difference]: Finished difference Result 4131 states and 4887 transitions. [2020-10-29 04:48:50,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 04:48:50,968 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 238 [2020-10-29 04:48:50,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:48:50,981 INFO L225 Difference]: With dead ends: 4131 [2020-10-29 04:48:50,982 INFO L226 Difference]: Without dead ends: 2184 [2020-10-29 04:48:50,987 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:48:50,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2184 states. [2020-10-29 04:48:51,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2184 to 2106. [2020-10-29 04:48:51,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2106 states. [2020-10-29 04:48:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 2344 transitions. [2020-10-29 04:48:51,089 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 2344 transitions. Word has length 238 [2020-10-29 04:48:51,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:48:51,090 INFO L481 AbstractCegarLoop]: Abstraction has 2106 states and 2344 transitions. [2020-10-29 04:48:51,090 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:48:51,090 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 2344 transitions. [2020-10-29 04:48:51,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2020-10-29 04:48:51,097 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:48:51,098 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 04:48:51,098 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 04:48:51,098 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:48:51,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:48:51,099 INFO L82 PathProgramCache]: Analyzing trace with hash -1537510982, now seen corresponding path program 1 times [2020-10-29 04:48:51,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:48:51,099 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1470773947] [2020-10-29 04:48:51,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:48:51,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 04:48:51,166 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 04:48:51,166 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 04:48:51,174 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 04:48:51,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:48:51 BoogieIcfgContainer [2020-10-29 04:48:51,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:48:51,246 INFO L168 Benchmark]: Toolchain (without parser) took 43683.50 ms. Allocated memory was 151.0 MB in the beginning and 715.1 MB in the end (delta: 564.1 MB). Free memory was 124.4 MB in the beginning and 653.1 MB in the end (delta: -528.7 MB). Peak memory consumption was 36.5 MB. Max. memory is 8.0 GB. [2020-10-29 04:48:51,247 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:48:51,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.14 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 96.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. [2020-10-29 04:48:51,251 INFO L168 Benchmark]: Boogie Preprocessor took 111.11 ms. Allocated memory is still 151.0 MB. Free memory was 96.5 MB in the beginning and 91.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:48:51,255 INFO L168 Benchmark]: RCFGBuilder took 1451.45 ms. Allocated memory was 151.0 MB in the beginning and 195.0 MB in the end (delta: 44.0 MB). Free memory was 91.3 MB in the beginning and 150.5 MB in the end (delta: -59.2 MB). Peak memory consumption was 39.9 MB. Max. memory is 8.0 GB. [2020-10-29 04:48:51,256 INFO L168 Benchmark]: TraceAbstraction took 41385.29 ms. Allocated memory was 195.0 MB in the beginning and 715.1 MB in the end (delta: 520.1 MB). Free memory was 150.0 MB in the beginning and 653.1 MB in the end (delta: -503.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. [2020-10-29 04:48:51,261 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 151.0 MB. Free memory is still 126.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 719.14 ms. Allocated memory is still 151.0 MB. Free memory was 123.6 MB in the beginning and 96.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 111.11 ms. Allocated memory is still 151.0 MB. Free memory was 96.5 MB in the beginning and 91.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1451.45 ms. Allocated memory was 151.0 MB in the beginning and 195.0 MB in the end (delta: 44.0 MB). Free memory was 91.3 MB in the beginning and 150.5 MB in the end (delta: -59.2 MB). Peak memory consumption was 39.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 41385.29 ms. Allocated memory was 195.0 MB in the beginning and 715.1 MB in the end (delta: 520.1 MB). Free memory was 150.0 MB in the beginning and 653.1 MB in the end (delta: -503.0 MB). Peak memory consumption was 16.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int a= 1; [L10] int d= 4; [L11] int e= 5; [L12] int f= 6; [L13] int c= 3; [L14] int b= 2; [L17] int u = 21; [L18] int v = 22; [L19] int w = 23; [L20] int x = 24; [L21] int y = 25; [L22] int z = 26; [L24] int a17 = 1; [L25] int a7 = 0; [L26] int a20 = 1; [L27] int a8 = 15; [L28] int a12 = 8; [L29] int a16 = 5; [L30] int a21 = 1; [L582] int output = -1; [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L336] a17 = 0 [L337] a16 = 4 [L338] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L271] a20 = 0 [L272] a17 = 1 [L273] a16 = 6 [L274] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L65] a17 = 0 [L66] return 26; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND TRUE ((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))) [L75] a7 = 1 [L76] a17 = 1 [L77] a21 = 0 [L78] a20 = 1 [L79] a8 = 13 [L80] a16 = 5 [L81] return 26; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND TRUE ((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1))) [L226] a21 = 1 [L227] a8 = 14 [L228] a16 = 4 [L229] a20 = 0 [L230] a7 = 0 [L231] a17 = 0 [L232] return -1; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L339] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L347] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L355] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L357] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L363] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L365] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L367] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L374] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L379] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L384] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L393] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L396] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L399] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L402] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L405] COND TRUE ((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)) [L406] CALL reach_error() [L4] __assert_fail("0", "Problem01_label56.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 41.2s, OverallIterations: 11, TraceHistogramMax: 6, AutomataDifference: 16.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 265 SDtfs, 3574 SDslu, 289 SDs, 0 SdLazy, 7007 SolverSat, 1012 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 170 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2106occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1613 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 22.9s InterpolantComputationTime, 1746 NumberOfCodeBlocks, 1746 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1468 ConstructedInterpolants, 0 QuantifiedInterpolants, 743164 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 930/1108 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 incorrect! Received shutdown request...