/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/Problem02_label59.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:51:11,790 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:51:11,794 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:51:11,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:51:11,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:51:11,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:51:11,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:51:11,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:51:11,877 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:51:11,883 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:51:11,885 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:51:11,886 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:51:11,887 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:51:11,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:51:11,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:51:11,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:51:11,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:51:11,900 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:51:11,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:51:11,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:51:11,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:51:11,922 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:51:11,924 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:51:11,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:51:11,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:51:11,936 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:51:11,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:51:11,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:51:11,940 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:51:11,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:51:11,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:51:11,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:51:11,945 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:51:11,946 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:51:11,947 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:51:11,947 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:51:11,948 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:51:11,955 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:51:11,956 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:51:11,957 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:51:11,958 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:51:11,966 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 04:51:12,018 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:51:12,018 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:51:12,022 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:51:12,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:51:12,023 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:51:12,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:51:12,024 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:51:12,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:51:12,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:51:12,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:51:12,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:51:12,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:51:12,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:51:12,026 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:51:12,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:51:12,026 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:51:12,026 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:51:12,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:51:12,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:51:12,027 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:51:12,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:51:12,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:51:12,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:51:12,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:51:12,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:51:12,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:51:12,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:51:12,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:51:12,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:51:12,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:51:12,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:51:12,493 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:51:12,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:51:12,498 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:51:12,498 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:51:12,499 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label59.c [2020-10-29 04:51:12,586 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d37c6f072/43484070fef04871a7c4dedb3c6a94de/FLAGd31ec43e1 [2020-10-29 04:51:13,316 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:51:13,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label59.c [2020-10-29 04:51:13,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d37c6f072/43484070fef04871a7c4dedb3c6a94de/FLAGd31ec43e1 [2020-10-29 04:51:13,560 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/d37c6f072/43484070fef04871a7c4dedb3c6a94de [2020-10-29 04:51:13,571 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:51:13,581 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:51:13,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:51:13,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:51:13,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:51:13,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:51:13" (1/1) ... [2020-10-29 04:51:13,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e9d0f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:13, skipping insertion in model container [2020-10-29 04:51:13,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:51:13" (1/1) ... [2020-10-29 04:51:13,605 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:51:13,649 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:51:14,108 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:51:14,124 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:51:14,270 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:51:14,300 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:51:14,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:14 WrapperNode [2020-10-29 04:51:14,302 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:51:14,303 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:51:14,303 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:51:14,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:51:14,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:14" (1/1) ... [2020-10-29 04:51:14,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:14" (1/1) ... [2020-10-29 04:51:14,357 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:14" (1/1) ... [2020-10-29 04:51:14,357 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:14" (1/1) ... [2020-10-29 04:51:14,465 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:14" (1/1) ... [2020-10-29 04:51:14,501 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:14" (1/1) ... [2020-10-29 04:51:14,514 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:14" (1/1) ... [2020-10-29 04:51:14,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:51:14,551 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:51:14,551 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:51:14,551 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:51:14,555 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:51:14,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:51:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:51:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:51:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 04:51:14,650 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:51:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 04:51:14,650 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:51:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:51:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:51:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:51:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:51:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 04:51:14,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:51:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:51:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:51:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:51:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:51:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:51:14,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:51:16,047 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:51:16,047 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 04:51:16,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:51:16 BoogieIcfgContainer [2020-10-29 04:51:16,050 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:51:16,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:51:16,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:51:16,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:51:16,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:51:13" (1/3) ... [2020-10-29 04:51:16,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66aeb70e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:51:16, skipping insertion in model container [2020-10-29 04:51:16,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:51:14" (2/3) ... [2020-10-29 04:51:16,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66aeb70e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:51:16, skipping insertion in model container [2020-10-29 04:51:16,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:51:16" (3/3) ... [2020-10-29 04:51:16,060 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label59.c [2020-10-29 04:51:16,075 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:51:16,087 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:51:16,105 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:51:16,139 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:51:16,140 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:51:16,140 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:51:16,140 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:51:16,140 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:51:16,140 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:51:16,141 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:51:16,141 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:51:16,168 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states. [2020-10-29 04:51:16,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-10-29 04:51:16,181 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:16,182 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, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:51:16,183 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:16,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:16,190 INFO L82 PathProgramCache]: Analyzing trace with hash -152954131, now seen corresponding path program 1 times [2020-10-29 04:51:16,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:16,201 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1968340313] [2020-10-29 04:51:16,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:16,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:16,561 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:16,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:18,104 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:18,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 04:51:18,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:51:18,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1638 [2020-10-29 04:51:18,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:18,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:18,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:51:18,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:51:18,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-29 04:51:18,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-29 04:51:18,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:18,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:18,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:18,367 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:18,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:18,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 04:51:18,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:18,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:18,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:18,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:18,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:51:18,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:51:18,400 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 04:51:18,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1968340313] [2020-10-29 04:51:18,403 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:51:18,403 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 04:51:18,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959743459] [2020-10-29 04:51:18,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:51:18,411 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:18,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:51:18,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:51:18,429 INFO L87 Difference]: Start difference. First operand 240 states. Second operand 4 states. [2020-10-29 04:51:20,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:20,614 INFO L93 Difference]: Finished difference Result 676 states and 1131 transitions. [2020-10-29 04:51:20,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:51:20,617 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 90 [2020-10-29 04:51:20,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:20,633 INFO L225 Difference]: With dead ends: 676 [2020-10-29 04:51:20,633 INFO L226 Difference]: Without dead ends: 342 [2020-10-29 04:51:20,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:51:20,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-29 04:51:20,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 333. [2020-10-29 04:51:20,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-10-29 04:51:20,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 481 transitions. [2020-10-29 04:51:20,747 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 481 transitions. Word has length 90 [2020-10-29 04:51:20,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:20,748 INFO L481 AbstractCegarLoop]: Abstraction has 333 states and 481 transitions. [2020-10-29 04:51:20,748 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:51:20,749 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 481 transitions. [2020-10-29 04:51:20,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-10-29 04:51:20,760 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:20,761 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:20,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:51:20,761 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:20,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:20,762 INFO L82 PathProgramCache]: Analyzing trace with hash 934521889, now seen corresponding path program 1 times [2020-10-29 04:51:20,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:20,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2005977087] [2020-10-29 04:51:20,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:20,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:20,805 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:21,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:21,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:21,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-29 04:51:21,624 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:51:21,624 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 828 [2020-10-29 04:51:21,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:21,625 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:21,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:21,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 04:51:21,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 04:51:21,625 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:21,826 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 04:51:21,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:21,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:21,835 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:21,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:21,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:21,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:21,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:51:21,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:21,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:21,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:21,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:21,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:21,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:51:21,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:21,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:21,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:21,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:51:21,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:21,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:51:21,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:21,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:21,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 04:51:21,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:21,902 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:51:21,902 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2005977087] [2020-10-29 04:51:21,902 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:51:21,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:51:21,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529796885] [2020-10-29 04:51:21,905 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:51:21,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:21,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:51:21,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:51:21,907 INFO L87 Difference]: Start difference. First operand 333 states and 481 transitions. Second operand 5 states. [2020-10-29 04:51:23,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:23,750 INFO L93 Difference]: Finished difference Result 961 states and 1418 transitions. [2020-10-29 04:51:23,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:51:23,751 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 98 [2020-10-29 04:51:23,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:23,761 INFO L225 Difference]: With dead ends: 961 [2020-10-29 04:51:23,761 INFO L226 Difference]: Without dead ends: 634 [2020-10-29 04:51:23,763 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 04:51:23,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2020-10-29 04:51:23,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 628. [2020-10-29 04:51:23,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-10-29 04:51:23,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-10-29 04:51:23,817 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 98 [2020-10-29 04:51:23,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:23,818 INFO L481 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-10-29 04:51:23,818 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:51:23,819 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-10-29 04:51:23,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-29 04:51:23,824 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:23,824 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:51:23,824 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:51:23,824 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:23,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:23,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1449390716, now seen corresponding path program 1 times [2020-10-29 04:51:23,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:23,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2090448393] [2020-10-29 04:51:23,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:23,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:23,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:24,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:24,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:24,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-29 04:51:24,562 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:51:24,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 694 [2020-10-29 04:51:24,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:24,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:24,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 04:51:24,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 04:51:24,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:51:24,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:24,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:24,772 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:24,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:24,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:24,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:24,782 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 04:51:24,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:24,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:24,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:24,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:24,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:51:24,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:24,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:24,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:24,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:24,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 04:51:24,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:24,842 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 04:51:24,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:24,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:24,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:24,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:24,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 04:51:24,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:51:24,870 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:51:24,870 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2090448393] [2020-10-29 04:51:24,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:51:24,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:51:24,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766856465] [2020-10-29 04:51:24,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:51:24,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:24,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:51:24,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:51:24,879 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 5 states. [2020-10-29 04:51:26,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:26,702 INFO L93 Difference]: Finished difference Result 1847 states and 2448 transitions. [2020-10-29 04:51:26,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:51:26,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-10-29 04:51:26,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:26,718 INFO L225 Difference]: With dead ends: 1847 [2020-10-29 04:51:26,719 INFO L226 Difference]: Without dead ends: 930 [2020-10-29 04:51:26,722 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:51:26,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 930 states. [2020-10-29 04:51:26,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 930 to 917. [2020-10-29 04:51:26,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 917 states. [2020-10-29 04:51:26,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 917 states to 917 states and 1144 transitions. [2020-10-29 04:51:26,811 INFO L78 Accepts]: Start accepts. Automaton has 917 states and 1144 transitions. Word has length 103 [2020-10-29 04:51:26,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:26,813 INFO L481 AbstractCegarLoop]: Abstraction has 917 states and 1144 transitions. [2020-10-29 04:51:26,813 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:51:26,813 INFO L276 IsEmpty]: Start isEmpty. Operand 917 states and 1144 transitions. [2020-10-29 04:51:26,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-10-29 04:51:26,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:26,829 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:51:26,830 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:51:26,830 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:26,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:26,831 INFO L82 PathProgramCache]: Analyzing trace with hash 378521140, now seen corresponding path program 1 times [2020-10-29 04:51:26,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:26,832 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1813574366] [2020-10-29 04:51:26,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:26,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:26,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:26,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:27,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:27,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:28,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:28,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 123 [2020-10-29 04:51:28,028 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-29 04:51:28,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1158 [2020-10-29 04:51:28,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:28,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-29 04:51:28,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-29 04:51:28,029 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:51:28,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:28,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:28,269 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:28,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:28,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:28,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 04:51:28,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:28,270 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:28,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:28,270 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:28,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:28,271 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:51:28,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:28,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:28,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:28,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:28,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-29 04:51:28,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:51:28,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-29 04:51:28,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:28,364 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:28,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:28,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:28,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-29 04:51:28,365 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:51:28,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1813574366] [2020-10-29 04:51:28,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:51:28,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:51:28,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265325554] [2020-10-29 04:51:28,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:51:28,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:28,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:51:28,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:51:28,430 INFO L87 Difference]: Start difference. First operand 917 states and 1144 transitions. Second operand 5 states. [2020-10-29 04:51:30,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:30,347 INFO L93 Difference]: Finished difference Result 2572 states and 3320 transitions. [2020-10-29 04:51:30,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:51:30,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 111 [2020-10-29 04:51:30,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:30,366 INFO L225 Difference]: With dead ends: 2572 [2020-10-29 04:51:30,366 INFO L226 Difference]: Without dead ends: 1366 [2020-10-29 04:51:30,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 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 04:51:30,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1366 states. [2020-10-29 04:51:30,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1366 to 1350. [2020-10-29 04:51:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1350 states. [2020-10-29 04:51:30,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1350 states to 1350 states and 1631 transitions. [2020-10-29 04:51:30,452 INFO L78 Accepts]: Start accepts. Automaton has 1350 states and 1631 transitions. Word has length 111 [2020-10-29 04:51:30,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:30,453 INFO L481 AbstractCegarLoop]: Abstraction has 1350 states and 1631 transitions. [2020-10-29 04:51:30,453 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:51:30,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1350 states and 1631 transitions. [2020-10-29 04:51:30,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-10-29 04:51:30,460 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:30,460 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:30,460 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:51:30,460 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:30,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:30,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1536245110, now seen corresponding path program 1 times [2020-10-29 04:51:30,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:30,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704171945] [2020-10-29 04:51:30,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:30,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:30,817 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:30,817 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-29 04:51:30,817 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:30,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 315 [2020-10-29 04:51:30,818 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:30,818 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:30,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:51:30,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:51:30,819 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 04:51:30,819 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:51:30,958 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-10-29 04:51:30,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:30,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:30,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:30,988 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:30,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:30,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:30,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 04:51:30,989 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:30,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:30,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:30,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:30,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:51:30,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:31,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:31,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:31,030 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:31,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:31,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 04:51:31,093 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:31,093 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-29 04:51:31,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:31,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:31,094 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:51:31,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-29 04:51:31,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:31,153 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:51:31,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704171945] [2020-10-29 04:51:31,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:51:31,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 04:51:31,154 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373377094] [2020-10-29 04:51:31,154 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:51:31,154 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:31,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:51:31,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:51:31,155 INFO L87 Difference]: Start difference. First operand 1350 states and 1631 transitions. Second operand 7 states. [2020-10-29 04:51:33,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:33,031 INFO L93 Difference]: Finished difference Result 2747 states and 3427 transitions. [2020-10-29 04:51:33,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 04:51:33,032 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 122 [2020-10-29 04:51:33,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:33,041 INFO L225 Difference]: With dead ends: 2747 [2020-10-29 04:51:33,042 INFO L226 Difference]: Without dead ends: 1403 [2020-10-29 04:51:33,046 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:51:33,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2020-10-29 04:51:33,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1363. [2020-10-29 04:51:33,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1363 states. [2020-10-29 04:51:33,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1363 states to 1363 states and 1577 transitions. [2020-10-29 04:51:33,101 INFO L78 Accepts]: Start accepts. Automaton has 1363 states and 1577 transitions. Word has length 122 [2020-10-29 04:51:33,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:33,101 INFO L481 AbstractCegarLoop]: Abstraction has 1363 states and 1577 transitions. [2020-10-29 04:51:33,102 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:51:33,102 INFO L276 IsEmpty]: Start isEmpty. Operand 1363 states and 1577 transitions. [2020-10-29 04:51:33,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-29 04:51:33,105 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:33,106 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:33,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:51:33,106 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:33,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:33,107 INFO L82 PathProgramCache]: Analyzing trace with hash -882088090, now seen corresponding path program 1 times [2020-10-29 04:51:33,107 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:33,107 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049972521] [2020-10-29 04:51:33,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:33,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:33,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:33,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:33,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:33,920 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-29 04:51:33,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:51:33,921 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 781 [2020-10-29 04:51:33,921 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:33,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:33,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:33,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 44 [2020-10-29 04:51:33,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 04:51:33,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:34,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:34,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:34,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:34,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:34,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:34,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:51:34,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:34,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:34,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:34,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:34,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:34,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:34,131 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:34,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-29 04:51:34,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:34,132 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-29 04:51:34,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:34,133 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:34,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:34,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:34,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 04:51:34,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:51:34,182 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 30 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:51:34,183 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049972521] [2020-10-29 04:51:34,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:51:34,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:51:34,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135323057] [2020-10-29 04:51:34,184 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:51:34,184 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:34,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:51:34,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:51:34,186 INFO L87 Difference]: Start difference. First operand 1363 states and 1577 transitions. Second operand 5 states. [2020-10-29 04:51:34,442 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 04:51:36,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:36,123 INFO L93 Difference]: Finished difference Result 3619 states and 4328 transitions. [2020-10-29 04:51:36,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:51:36,124 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 124 [2020-10-29 04:51:36,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:36,139 INFO L225 Difference]: With dead ends: 3619 [2020-10-29 04:51:36,139 INFO L226 Difference]: Without dead ends: 2262 [2020-10-29 04:51:36,145 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 04:51:36,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2262 states. [2020-10-29 04:51:36,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2262 to 2103. [2020-10-29 04:51:36,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2103 states. [2020-10-29 04:51:36,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2103 states to 2103 states and 2457 transitions. [2020-10-29 04:51:36,230 INFO L78 Accepts]: Start accepts. Automaton has 2103 states and 2457 transitions. Word has length 124 [2020-10-29 04:51:36,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:36,231 INFO L481 AbstractCegarLoop]: Abstraction has 2103 states and 2457 transitions. [2020-10-29 04:51:36,231 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:51:36,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2103 states and 2457 transitions. [2020-10-29 04:51:36,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-10-29 04:51:36,237 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:36,237 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:36,237 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:51:36,238 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:36,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:36,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1851559949, now seen corresponding path program 1 times [2020-10-29 04:51:36,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:36,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [607220592] [2020-10-29 04:51:36,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:36,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:36,276 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:36,322 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:37,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:39,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:39,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-29 04:51:39,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:51:39,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3056 [2020-10-29 04:51:39,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:39,321 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:39,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:39,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-29 04:51:39,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-29 04:51:39,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:39,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:39,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:39,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:39,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:39,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:39,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:51:39,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:39,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:39,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:39,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:39,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:39,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:39,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:39,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:39,522 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:39,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 38 [2020-10-29 04:51:39,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:39,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-29 04:51:39,523 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:39,523 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:39,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-29 04:51:39,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:39,558 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:51:39,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [607220592] [2020-10-29 04:51:39,559 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:51:39,559 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:51:39,559 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624923729] [2020-10-29 04:51:39,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:51:39,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:39,560 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:51:39,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:51:39,561 INFO L87 Difference]: Start difference. First operand 2103 states and 2457 transitions. Second operand 5 states. [2020-10-29 04:51:41,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:41,405 INFO L93 Difference]: Finished difference Result 4802 states and 5736 transitions. [2020-10-29 04:51:41,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:51:41,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 127 [2020-10-29 04:51:41,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:41,422 INFO L225 Difference]: With dead ends: 4802 [2020-10-29 04:51:41,422 INFO L226 Difference]: Without dead ends: 2705 [2020-10-29 04:51:41,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:51:41,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2020-10-29 04:51:41,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2399. [2020-10-29 04:51:41,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2399 states. [2020-10-29 04:51:41,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2399 states to 2399 states and 2869 transitions. [2020-10-29 04:51:41,536 INFO L78 Accepts]: Start accepts. Automaton has 2399 states and 2869 transitions. Word has length 127 [2020-10-29 04:51:41,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:41,536 INFO L481 AbstractCegarLoop]: Abstraction has 2399 states and 2869 transitions. [2020-10-29 04:51:41,536 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:51:41,537 INFO L276 IsEmpty]: Start isEmpty. Operand 2399 states and 2869 transitions. [2020-10-29 04:51:41,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-29 04:51:41,544 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:41,544 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:41,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:51:41,544 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:41,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:41,545 INFO L82 PathProgramCache]: Analyzing trace with hash -1279632743, now seen corresponding path program 1 times [2020-10-29 04:51:41,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:41,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208890421] [2020-10-29 04:51:41,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:41,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:41,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:42,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:42,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-29 04:51:42,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:51:42,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1180 [2020-10-29 04:51:42,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:42,766 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:42,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:51:42,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:51:42,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-29 04:51:42,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:42,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:42,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:42,902 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:42,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:42,914 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:42,914 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:42,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-29 04:51:42,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:42,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:42,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:42,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:42,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:51:42,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:42,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:42,961 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:43,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:43,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 04:51:43,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:43,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 77 [2020-10-29 04:51:43,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:43,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:43,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:43,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:51:43,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 04:51:43,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:43,099 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:51:43,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208890421] [2020-10-29 04:51:43,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:51:43,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-29 04:51:43,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847557656] [2020-10-29 04:51:43,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:51:43,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:43,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:51:43,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:51:43,102 INFO L87 Difference]: Start difference. First operand 2399 states and 2869 transitions. Second operand 7 states. [2020-10-29 04:51:43,241 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-10-29 04:51:45,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:45,059 INFO L93 Difference]: Finished difference Result 4827 states and 5797 transitions. [2020-10-29 04:51:45,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 04:51:45,063 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 152 [2020-10-29 04:51:45,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:45,079 INFO L225 Difference]: With dead ends: 4827 [2020-10-29 04:51:45,079 INFO L226 Difference]: Without dead ends: 2434 [2020-10-29 04:51:45,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:51:45,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2434 states. [2020-10-29 04:51:45,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2434 to 2282. [2020-10-29 04:51:45,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2282 states. [2020-10-29 04:51:45,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2282 states to 2282 states and 2592 transitions. [2020-10-29 04:51:45,165 INFO L78 Accepts]: Start accepts. Automaton has 2282 states and 2592 transitions. Word has length 152 [2020-10-29 04:51:45,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:45,166 INFO L481 AbstractCegarLoop]: Abstraction has 2282 states and 2592 transitions. [2020-10-29 04:51:45,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:51:45,166 INFO L276 IsEmpty]: Start isEmpty. Operand 2282 states and 2592 transitions. [2020-10-29 04:51:45,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-29 04:51:45,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:45,174 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:45,175 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:51:45,175 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:45,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:45,175 INFO L82 PathProgramCache]: Analyzing trace with hash -785394248, now seen corresponding path program 1 times [2020-10-29 04:51:45,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:45,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [155731186] [2020-10-29 04:51:45,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:45,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:45,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:45,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:45,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-29 04:51:45,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:45,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 264 [2020-10-29 04:51:45,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:45,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:51:45,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 04:51:45,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:45,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:45,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:45,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:45,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:45,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:45,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:51:45,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:45,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:45,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:45,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:45,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:45,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:45,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:45,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:45,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:45,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:45,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 04:51:45,643 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:45,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:51:45,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:45,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:45,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 04:51:45,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:45,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-29 04:51:45,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:45,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:45,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:45,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 04:51:45,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:45,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-29 04:51:45,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:45,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:45,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:45,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:51:45,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 04:51:45,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:51:45,818 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 71 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 04:51:45,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [155731186] [2020-10-29 04:51:45,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:51:45,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:51:45,820 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328122100] [2020-10-29 04:51:45,820 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:51:45,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:45,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:51:45,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:51:45,821 INFO L87 Difference]: Start difference. First operand 2282 states and 2592 transitions. Second operand 7 states. [2020-10-29 04:51:47,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:47,841 INFO L93 Difference]: Finished difference Result 5010 states and 5734 transitions. [2020-10-29 04:51:47,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 04:51:47,842 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-10-29 04:51:47,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:47,852 INFO L225 Difference]: With dead ends: 5010 [2020-10-29 04:51:47,853 INFO L226 Difference]: Without dead ends: 2274 [2020-10-29 04:51:47,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:51:47,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2274 states. [2020-10-29 04:51:47,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2274 to 2270. [2020-10-29 04:51:47,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2020-10-29 04:51:47,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 2503 transitions. [2020-10-29 04:51:47,922 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 2503 transitions. Word has length 161 [2020-10-29 04:51:47,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:47,922 INFO L481 AbstractCegarLoop]: Abstraction has 2270 states and 2503 transitions. [2020-10-29 04:51:47,922 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:51:47,922 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 2503 transitions. [2020-10-29 04:51:47,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-29 04:51:47,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:47,928 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:51:47,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 04:51:47,929 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:47,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:47,929 INFO L82 PathProgramCache]: Analyzing trace with hash -849359120, now seen corresponding path program 1 times [2020-10-29 04:51:47,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:47,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257685927] [2020-10-29 04:51:47,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:47,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:47,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:48,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:48,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-29 04:51:48,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:48,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 217 [2020-10-29 04:51:48,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:48,177 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:48,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:48,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-29 04:51:48,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 04:51:48,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:48,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:48,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:48,310 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:48,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:48,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:48,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:51:48,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:48,311 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:48,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:48,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:48,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:48,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:48,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:48,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:48,349 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:48,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-29 04:51:48,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:48,350 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-29 04:51:48,350 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:48,350 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:48,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-29 04:51:48,351 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:48,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-29 04:51:48,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:48,376 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:48,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:48,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 04:51:48,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:48,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-29 04:51:48,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:48,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:48,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:48,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:51:48,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 04:51:48,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:48,529 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 04:51:48,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257685927] [2020-10-29 04:51:48,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:51:48,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:51:48,530 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407916910] [2020-10-29 04:51:48,531 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:51:48,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:48,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:51:48,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:51:48,532 INFO L87 Difference]: Start difference. First operand 2270 states and 2503 transitions. Second operand 7 states. [2020-10-29 04:51:51,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:51,168 INFO L93 Difference]: Finished difference Result 5370 states and 6041 transitions. [2020-10-29 04:51:51,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 04:51:51,169 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 165 [2020-10-29 04:51:51,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:51,187 INFO L225 Difference]: With dead ends: 5370 [2020-10-29 04:51:51,188 INFO L226 Difference]: Without dead ends: 3106 [2020-10-29 04:51:51,194 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:51:51,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3106 states. [2020-10-29 04:51:51,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3106 to 2739. [2020-10-29 04:51:51,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2739 states. [2020-10-29 04:51:51,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2739 states to 2739 states and 2957 transitions. [2020-10-29 04:51:51,289 INFO L78 Accepts]: Start accepts. Automaton has 2739 states and 2957 transitions. Word has length 165 [2020-10-29 04:51:51,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:51,289 INFO L481 AbstractCegarLoop]: Abstraction has 2739 states and 2957 transitions. [2020-10-29 04:51:51,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:51:51,290 INFO L276 IsEmpty]: Start isEmpty. Operand 2739 states and 2957 transitions. [2020-10-29 04:51:51,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-29 04:51:51,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:51,298 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 04:51:51,298 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 04:51:51,299 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:51,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:51,299 INFO L82 PathProgramCache]: Analyzing trace with hash -1384033550, now seen corresponding path program 1 times [2020-10-29 04:51:51,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:51,300 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1645047348] [2020-10-29 04:51:51,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:51,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:51,744 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:51,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-29 04:51:51,745 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:51,745 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 419 [2020-10-29 04:51:51,745 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:51,745 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:51,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:51:51,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:51:51,746 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-29 04:51:51,746 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:51,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:51,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:51,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:51,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:51,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:51,877 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:51,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 04:51:51,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:51,878 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:51,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:51,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:51,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:51:51,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:51,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:51,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:51,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:51,951 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:51,951 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-29 04:51:51,951 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:51,951 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-29 04:51:51,952 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:51,952 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:51,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:51,952 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:51:51,953 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 04:51:51,953 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:51:51,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-29 04:51:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:52,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:52,026 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:52,026 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-10-29 04:51:52,026 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:52,026 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-29 04:51:52,027 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:52,027 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 52 [2020-10-29 04:51:52,027 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:52,028 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:52,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2020-10-29 04:51:52,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:52,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:52,064 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:52,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-29 04:51:52,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:52,065 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 04:51:52,065 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:52,066 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:52,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:52,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-10-29 04:51:52,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:52,066 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:52,113 INFO L134 CoverageAnalysis]: Checked inductivity of 176 backedges. 98 proven. 36 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2020-10-29 04:51:52,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1645047348] [2020-10-29 04:51:52,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:51:52,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:51:52,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501130253] [2020-10-29 04:51:52,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:51:52,116 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:52,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:51:52,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:51:52,117 INFO L87 Difference]: Start difference. First operand 2739 states and 2957 transitions. Second operand 7 states. [2020-10-29 04:51:53,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:53,159 INFO L93 Difference]: Finished difference Result 4848 states and 5236 transitions. [2020-10-29 04:51:53,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-29 04:51:53,163 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 199 [2020-10-29 04:51:53,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:53,171 INFO L225 Difference]: With dead ends: 4848 [2020-10-29 04:51:53,172 INFO L226 Difference]: Without dead ends: 1647 [2020-10-29 04:51:53,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-29 04:51:53,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1647 states. [2020-10-29 04:51:53,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1647 to 1645. [2020-10-29 04:51:53,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1645 states. [2020-10-29 04:51:53,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1645 states to 1645 states and 1703 transitions. [2020-10-29 04:51:53,228 INFO L78 Accepts]: Start accepts. Automaton has 1645 states and 1703 transitions. Word has length 199 [2020-10-29 04:51:53,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:53,229 INFO L481 AbstractCegarLoop]: Abstraction has 1645 states and 1703 transitions. [2020-10-29 04:51:53,229 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:51:53,229 INFO L276 IsEmpty]: Start isEmpty. Operand 1645 states and 1703 transitions. [2020-10-29 04:51:53,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-29 04:51:53,233 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:53,233 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 04:51:53,234 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 04:51:53,234 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:53,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:53,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1461677181, now seen corresponding path program 1 times [2020-10-29 04:51:53,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:53,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1511548627] [2020-10-29 04:51:53,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:53,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:53,286 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:53,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:53,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-29 04:51:53,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:53,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 316 [2020-10-29 04:51:53,586 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:53,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:53,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:53,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-29 04:51:53,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-29 04:51:53,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:53,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:51:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:53,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:53,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:53,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:51:53,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:53,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:51:53,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:53,722 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:53,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:51:53,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:53,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:51:53,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:53,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:51:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:53,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:53,786 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:53,786 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-29 04:51:53,786 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:53,787 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-29 04:51:53,787 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:53,787 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:51:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:51:53,787 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 04:51:53,788 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:53,801 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-10-29 04:51:53,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:51:53,823 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:51:53,888 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:51:53,888 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 63 [2020-10-29 04:51:53,888 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:51:53,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-29 04:51:53,889 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:51:53,889 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:51:53,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:51:53,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:51:53,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-29 04:51:53,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:51:53,971 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 155 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 04:51:53,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1511548627] [2020-10-29 04:51:53,972 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:51:53,972 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:51:53,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371497068] [2020-10-29 04:51:53,973 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:51:53,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:51:53,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:51:53,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:51:53,974 INFO L87 Difference]: Start difference. First operand 1645 states and 1703 transitions. Second operand 7 states. [2020-10-29 04:51:55,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:51:55,198 INFO L93 Difference]: Finished difference Result 2387 states and 2481 transitions. [2020-10-29 04:51:55,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:51:55,198 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-10-29 04:51:55,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:51:55,204 INFO L225 Difference]: With dead ends: 2387 [2020-10-29 04:51:55,205 INFO L226 Difference]: Without dead ends: 1486 [2020-10-29 04:51:55,207 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:51:55,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2020-10-29 04:51:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1485. [2020-10-29 04:51:55,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1485 states. [2020-10-29 04:51:55,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 1523 transitions. [2020-10-29 04:51:55,248 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 1523 transitions. Word has length 203 [2020-10-29 04:51:55,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:51:55,248 INFO L481 AbstractCegarLoop]: Abstraction has 1485 states and 1523 transitions. [2020-10-29 04:51:55,248 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:51:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 1523 transitions. [2020-10-29 04:51:55,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-10-29 04:51:55,254 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:51:55,254 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:51:55,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 04:51:55,254 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:51:55,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:51:55,255 INFO L82 PathProgramCache]: Analyzing trace with hash 175479354, now seen corresponding path program 1 times [2020-10-29 04:51:55,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:51:55,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540194420] [2020-10-29 04:51:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:51:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 04:51:55,304 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 04:51:55,305 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 04:51:55,309 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 04:51:55,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:51:55 BoogieIcfgContainer [2020-10-29 04:51:55,351 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:51:55,353 INFO L168 Benchmark]: Toolchain (without parser) took 41779.17 ms. Allocated memory was 151.0 MB in the beginning and 683.7 MB in the end (delta: 532.7 MB). Free memory was 124.1 MB in the beginning and 283.0 MB in the end (delta: -158.9 MB). Peak memory consumption was 374.3 MB. Max. memory is 8.0 GB. [2020-10-29 04:51:55,354 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:51:55,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.11 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 97.9 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:51:55,355 INFO L168 Benchmark]: Boogie Preprocessor took 246.94 ms. Allocated memory is still 151.0 MB. Free memory was 97.9 MB in the beginning and 129.6 MB in the end (delta: -31.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. [2020-10-29 04:51:55,356 INFO L168 Benchmark]: RCFGBuilder took 1498.84 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 129.6 MB in the beginning and 138.1 MB in the end (delta: -8.6 MB). Peak memory consumption was 85.3 MB. Max. memory is 8.0 GB. [2020-10-29 04:51:55,358 INFO L168 Benchmark]: TraceAbstraction took 39299.84 ms. Allocated memory was 181.4 MB in the beginning and 683.7 MB in the end (delta: 502.3 MB). Free memory was 137.6 MB in the beginning and 283.0 MB in the end (delta: -145.4 MB). Peak memory consumption was 356.8 MB. Max. memory is 8.0 GB. [2020-10-29 04:51:55,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 151.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 716.11 ms. Allocated memory is still 151.0 MB. Free memory was 123.3 MB in the beginning and 97.9 MB in the end (delta: 25.5 MB). Peak memory consumption was 25.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 246.94 ms. Allocated memory is still 151.0 MB. Free memory was 97.9 MB in the beginning and 129.6 MB in the end (delta: -31.7 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1498.84 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 129.6 MB in the beginning and 138.1 MB in the end (delta: -8.6 MB). Peak memory consumption was 85.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 39299.84 ms. Allocated memory was 181.4 MB in the beginning and 683.7 MB in the end (delta: 502.3 MB). Free memory was 137.6 MB in the beginning and 283.0 MB in the end (delta: -145.4 MB). Peak memory consumption was 356.8 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 e= 5; [L11] int d= 4; [L12] int f= 6; [L13] int c= 3; [L16] int u = 21; [L17] int v = 22; [L18] int w = 23; [L19] int x = 24; [L20] int y = 25; [L21] int z = 26; [L24] int a25 = 0; [L25] int a11 = 0; [L26] int a28 = 7; [L27] int a19 = 1; [L28] int a21 = 1; [L29] int a17 = 8; [L605] int output = -1; [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND TRUE ((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1))) [L237] a28 = 9 [L238] return 23; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L356] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L363] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L370] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L377] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L380] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L382] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L391] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L396] COND TRUE (((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1)) [L397] a19 = 0 [L398] a28 = 7 [L399] return 25; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL, EXPR calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND TRUE ((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8)))) [L157] a25 = 1 [L158] a19 = 1 [L159] a28 = 7 [L160] return -1; [L616] RET, EXPR calculate_output(input) [L616] output = calculate_output(input) [L608] COND TRUE 1 [L611] int input; [L612] input = __VERIFIER_nondet_int() [L613] COND FALSE !((input != 1) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L616] CALL calculate_output(input) [L32] COND FALSE !((((!(a11==1)&&((a19==1)&&((input==4)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))))&&(a21==1))&&(a17==8))) [L37] COND FALSE !(((a17==8)&&((((!(a11==1)&&((a21==1)&&(input==6)))&&(a28==7))&&(a19==1))&&!(a25==1)))) [L40] COND FALSE !(((a21==1)&&((a19==1)&&((((((a25==1)||!(a25==1))&&(input==3))&&(a17==9))&&(a11==1))&&(a28==9))))) [L44] COND FALSE !(((a28==9)&&(!(a19==1)&&((a21==1)&&((((input==4)&&!(a25==1))&&!(a11==1))&&(a17==8)))))) [L49] COND FALSE !(((((a17==8)&&((((input==1)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a19==1)))&&(a21==1))&&(a28==10))) [L52] COND FALSE !(((a19==1)&&(!(a25==1)&&((a21==1)&&((((input==1)&&(a17==8))&&!(a11==1))&&(a28==7)))))) [L56] COND FALSE !(((((!(a19==1)&&((input==1)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))))&&(a21==1))&&(a17==8))&&!(a11==1))) [L61] COND FALSE !(((a19==1)&&(((((input==1)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1)))))&&(a11==1))&&(a21==1))&&(a17==9)))) [L67] COND FALSE !(((a19==1)&&(((a17==8)&&(((input==6)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9))))&&!(a11==1)))&&(a21==1)))) [L71] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==1)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9)))))&&!(a19==1))&&(a17==8)))) [L76] COND FALSE !((!(a19==1)&&(((((a17==8)&&((a25==1)&&(input==3)))&&(a28==10))&&!(a11==1))&&(a21==1)))) [L84] COND FALSE !((((!(a19==1)&&((a21==1)&&((((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||((a28==7)&&!(a25==1))))&&(input==4))))&&!(a11==1))&&(a17==8))) [L93] COND FALSE !(((a17==8)&&((a21==1)&&((a25==1)&&((a19==1)&&(!(a11==1)&&((a28==11)&&(input==3)))))))) [L97] COND FALSE !(((a28==9)&&(((!(a19==1)&&(((input==3)&&!(a11==1))&&(a17==8)))&&!(a25==1))&&(a21==1)))) [L101] COND FALSE !(((!(a11==1)&&(((a28==11)&&((a25==1)&&((input==1)&&(a19==1))))&&(a17==8)))&&(a21==1))) [L108] COND FALSE !((((a11==1)&&((((((a25==1)&&(a28==8))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7))))&&(input==6))&&(a19==1))&&(a17==9)))&&(a21==1))) [L115] COND FALSE !(((a17==8)&&((a21==1)&&(!(a11==1)&&(!(a19==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))))))) [L121] COND FALSE !((((((a21==1)&&((a28==10)&&((input==1)&&(a25==1))))&&!(a11==1))&&(a17==8))&&!(a19==1))) [L125] COND FALSE !((!(a11==1)&&(!(a19==1)&&(((a17==8)&&((input==6)&&((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a28==8)&&(a25==1)))))&&(a21==1))))) [L132] COND FALSE !(((((a17==8)&&(!(a19==1)&&(((input==6)&&(a21==1))&&!(a25==1))))&&!(a11==1))&&(a28==9))) [L136] COND FALSE !((!(a11==1)&&((!(a25==1)&&(((a21==1)&&((input==1)&&(a19==1)))&&(a17==8)))&&(a28==11)))) [L141] COND FALSE !((((a11==1)&&(((a19==1)&&((a21==1)&&(((a25==1)||!(a25==1))&&(input==4))))&&(a17==9)))&&(a28==9))) [L145] COND FALSE !(((!(a11==1)&&((a28==9)&&(((!(a19==1)&&(input==5))&&!(a25==1))&&(a21==1))))&&(a17==8))) [L150] COND FALSE !(((!(a11==1)&&(((a17==8)&&(((((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))||((a28==8)&&(a25==1)))&&(input==3)))&&!(a19==1)))&&(a21==1))) [L156] COND FALSE !(((a21==1)&&(!(a19==1)&&((((input==5)&&(((a28==8)&&(a25==1))||(((a25==1)&&(a28==7))||(!(a25==1)&&(a28==7)))))&&!(a11==1))&&(a17==8))))) [L161] COND FALSE !((((a17==9)&&(((a28==8)&&(((input==1)&&(a19==1))&&!(a25==1)))&&(a11==1)))&&(a21==1))) [L167] COND FALSE !((((a21==1)&&((a19==1)&&((a28==7)&&((a17==8)&&(!(a25==1)&&(input==3))))))&&!(a11==1))) [L171] COND FALSE !(((a28==11)&&(((a17==8)&&((((input==6)&&(a21==1))&&(a19==1))&&!(a25==1)))&&!(a11==1)))) [L177] COND FALSE !(((!(a11==1)&&(((a17==8)&&((a21==1)&&((input==3)&&(a28==8))))&&(a19==1)))&&(a25==1))) [L181] COND FALSE !((((a21==1)&&(((a19==1)&&(((((a25==1)&&(a28==7))||((a28==7)&&!(a25==1)))||((a25==1)&&(a28==8)))&&(input==4)))&&(a11==1)))&&(a17==9))) [L187] COND FALSE !((((!(a11==1)&&((a17==8)&&(((input==4)&&(a19==1))&&(a28==8))))&&(a21==1))&&(a25==1))) [L189] COND FALSE !(((a19==1)&&((((((input==4)&&(a21==1))&&(a28==9))&&!(a25==1))&&!(a11==1))&&(a17==8)))) [L191] COND FALSE !(((a17==8)&&((((((input==1)&&(a21==1))&&!(a11==1))&&(a19==1))&&!(a25==1))&&(a28==9)))) [L193] COND FALSE !((((((((input==4)&&((a25==1)||!(a25==1)))&&!(a11==1))&&(a21==1))&&(a17==8))&&(a28==10))&&(a19==1))) [L196] COND FALSE !(((!(a25==1)&&((a11==1)&&((a28==8)&&(((a17==9)&&(input==4))&&(a19==1)))))&&(a21==1))) [L200] COND FALSE !((!(a19==1)&&((a17==8)&&((a28==10)&&(((a25==1)&&(!(a11==1)&&(input==5)))&&(a21==1)))))) [L204] COND FALSE !((((((a21==1)&&((input==1)&&((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))))&&(a17==8))&&!(a11==1))&&(a19==1))) [L214] COND FALSE !(((a21==1)&&((((a19==1)&&((a25==1)&&((a28==11)&&(input==6))))&&!(a11==1))&&(a17==8)))) [L217] COND FALSE !((!(a11==1)&&((a19==1)&&((a28==10)&&(((((a25==1)||!(a25==1))&&(input==5))&&(a17==8))&&(a21==1)))))) [L220] COND FALSE !((((((a17==9)&&((((a25==1)||!(a25==1))&&(input==6))&&(a11==1)))&&(a19==1))&&(a21==1))&&(a28==9))) [L225] COND FALSE !((((a17==8)&&(((((input==6)&&(a25==1))&&!(a19==1))&&!(a11==1))&&(a28==10)))&&(a21==1))) [L227] COND FALSE !(((!(a19==1)&&((a17==8)&&(!(a11==1)&&((input==1)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))))&&(a21==1))) [L234] COND FALSE !((((((((input==1)&&(a21==1))&&(a28==9))&&!(a19==1))&&!(a25==1))&&(a17==8))&&!(a11==1))) [L236] COND FALSE !(((a17==8)&&(((!(a11==1)&&((!(a25==1)&&(input==4))&&(a19==1)))&&(a28==7))&&(a21==1)))) [L239] COND FALSE !((!(a11==1)&&(((a17==8)&&((((!(a25==1)&&(a28==11))||((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1))))&&(input==3))&&(a21==1)))&&!(a19==1)))) [L250] COND FALSE !(((((!(a11==1)&&(((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==5)))&&(a21==1))&&!(a19==1))&&(a17==8))) [L255] COND FALSE !((((a17==9)&&(((((input==1)&&((a25==1)||!(a25==1)))&&(a11==1))&&(a21==1))&&(a19==1)))&&(a28==9))) [L261] COND FALSE !((!(a11==1)&&((a19==1)&&(((((a28==9)&&(input==6))&&(a21==1))&&(a17==8))&&!(a25==1))))) [L263] COND FALSE !(((a17==9)&&((a21==1)&&((a11==1)&&(((input==3)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a19==1)))))) [L278] COND FALSE !(((a28==7)&&((a17==8)&&(!(a25==1)&&((a21==1)&&((a19==1)&&((input==5)&&!(a11==1)))))))) [L282] COND FALSE !(((a28==8)&&((a21==1)&&((!(a11==1)&&(((input==1)&&(a17==8))&&(a19==1)))&&(a25==1))))) [L285] COND FALSE !((((((a17==8)&&(((input==6)&&((a25==1)||!(a25==1)))&&(a21==1)))&&(a28==10))&&!(a11==1))&&(a19==1))) [L288] COND FALSE !(((!(a11==1)&&((!(a19==1)&&(((!(a25==1)&&(a28==11))||(((a28==10)&&!(a25==1))||((a25==1)&&(a28==11))))&&(input==5)))&&(a17==8)))&&(a21==1))) [L293] COND FALSE !(((a17==8)&&(((a21==1)&&(!(a11==1)&&((a25==1)&&((a28==8)&&(input==6)))))&&(a19==1)))) [L295] COND FALSE !((((a19==1)&&((a17==8)&&(((!(a25==1)&&(input==5))&&(a21==1))&&!(a11==1))))&&(a28==11))) [L299] COND FALSE !(((a11==1)&&(((a17==9)&&((a28==9)&&((a19==1)&&(((a25==1)||!(a25==1))&&(input==5)))))&&(a21==1)))) [L311] COND FALSE !((((((((input==3)&&(a19==1))&&(a21==1))&&(a17==8))&&!(a25==1))&&(a28==11))&&!(a11==1))) [L316] COND FALSE !(((a19==1)&&((a21==1)&&((((input==5)&&(((a25==1)&&(a28==8))||(((a28==7)&&(a25==1))||(!(a25==1)&&(a28==7)))))&&(a11==1))&&(a17==9))))) [L330] COND FALSE !((((a19==1)&&(((!(a11==1)&&(((a25==1)||!(a25==1))&&(input==3)))&&(a28==10))&&(a21==1)))&&(a17==8))) [L333] COND FALSE !(((!(a11==1)&&(((((input==4)&&(a17==8))&&!(a25==1))&&(a21==1))&&(a28==11)))&&(a19==1))) [L339] COND FALSE !((((!(a19==1)&&(((input==4)&&(((!(a25==1)&&(a28==10))||((a28==11)&&(a25==1)))||(!(a25==1)&&(a28==11))))&&(a21==1)))&&(a17==8))&&!(a11==1))) [L351] COND FALSE !((!(a11==1)&&(((a17==8)&&((((a25==1)&&(input==4))&&(a19==1))&&(a28==11)))&&(a21==1)))) [L356] COND FALSE !((((((a21==1)&&((((a28==8)&&!(a25==1))||((a28==9)&&(a25==1)))&&(input==6)))&&!(a11==1))&&!(a19==1))&&(a17==8))) [L363] COND FALSE !(((a19==1)&&((((a21==1)&&((!(a25==1)&&(input==3))&&(a17==9)))&&(a28==8))&&(a11==1)))) [L370] COND FALSE !(((a17==8)&&(((a21==1)&&(((input==5)&&((!(a25==1)&&(a28==8))||((a28==9)&&(a25==1))))&&(a19==1)))&&!(a11==1)))) [L377] COND FALSE !(((a19==1)&&(((((a17==8)&&((input==5)&&!(a11==1)))&&(a21==1))&&(a25==1))&&(a28==8)))) [L380] COND FALSE !((((!(a11==1)&&((((a21==1)&&(input==4))&&(a28==10))&&(a17==8)))&&!(a19==1))&&(a25==1))) [L382] COND FALSE !(((a28==8)&&(((a19==1)&&((a11==1)&&(!(a25==1)&&((a17==9)&&(input==6)))))&&(a21==1)))) [L391] COND FALSE !((!(a11==1)&&((((a21==1)&&((input==6)&&((((a28==10)&&!(a25==1))||((a25==1)&&(a28==11)))||(!(a25==1)&&(a28==11)))))&&(a17==8))&&!(a19==1)))) [L396] COND FALSE !((((((!(a25==1)&&((a19==1)&&(input==3)))&&(a28==9))&&(a21==1))&&(a17==8))&&!(a11==1))) [L400] COND FALSE !((((a17==8)&&((((input==4)&&(((a28==8)&&!(a25==1))||((a25==1)&&(a28==9))))&&(a21==1))&&!(a19==1)))&&!(a11==1))) [L404] COND FALSE !((((!(a11==1)&&((((a19==1)&&(input==5))&&(a17==8))&&(a21==1)))&&(a28==9))&&!(a25==1))) [L406] COND FALSE !((((a11==1)&&((a19==1)&&((a21==1)&&(((a17==9)&&(input==5))&&!(a25==1)))))&&(a28==8))) [L409] COND FALSE !((!(a11==1)&&((a21==1)&&(((a19==1)&&((a17==8)&&((a25==1)&&(input==5))))&&(a28==11))))) [L411] COND FALSE !(((a19==1)&&((a17==8)&&(((((!(a25==1)&&(a28==8))||((a25==1)&&(a28==9)))&&(input==3))&&!(a11==1))&&(a21==1))))) [L416] COND FALSE !((((((!(a25==1)&&(a11==1))&&(a28==7))&&!(a19==1))&&(a21==1))&&(a17==8))) [L419] COND FALSE !(((((((a25==1)&&(a11==1))&&(a28==10))&&(a19==1))&&(a21==1))&&(a17==8))) [L422] COND TRUE ((((((a25==1)&&!(a11==1))&&(a28==7))&&(a19==1))&&(a21==1))&&(a17==8)) [L423] CALL reach_error() [L4] __assert_fail("0", "Problem02_label59.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 240 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 39.1s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 22.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 469 SDtfs, 4330 SDslu, 582 SDs, 0 SdLazy, 9945 SolverSat, 1139 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 75 SyntacticMatches, 3 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2739occurred 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: 0.8s AutomataMinimizationTime, 12 MinimizatonAttempts, 1075 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 14.4s InterpolantComputationTime, 1905 NumberOfCodeBlocks, 1905 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 1643 ConstructedInterpolants, 0 QuantifiedInterpolants, 669118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 627/674 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...