/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-28 10:08:17,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-28 10:08:17,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-28 10:08:17,492 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-28 10:08:17,492 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-28 10:08:17,494 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-28 10:08:17,496 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-28 10:08:17,498 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-28 10:08:17,501 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-28 10:08:17,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-28 10:08:17,503 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-28 10:08:17,505 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-28 10:08:17,506 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-28 10:08:17,507 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-28 10:08:17,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-28 10:08:17,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-28 10:08:17,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-28 10:08:17,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-28 10:08:17,524 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-28 10:08:17,527 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-28 10:08:17,529 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-28 10:08:17,530 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-28 10:08:17,532 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-28 10:08:17,533 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-28 10:08:17,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-28 10:08:17,536 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-28 10:08:17,537 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-28 10:08:17,538 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-28 10:08:17,538 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-28 10:08:17,540 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-28 10:08:17,540 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-28 10:08:17,541 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-28 10:08:17,542 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-28 10:08:17,543 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-28 10:08:17,544 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-28 10:08:17,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-28 10:08:17,546 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-28 10:08:17,546 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-28 10:08:17,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-28 10:08:17,548 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-28 10:08:17,548 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-28 10:08:17,550 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-28 10:08:17,578 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-28 10:08:17,578 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-28 10:08:17,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-28 10:08:17,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-28 10:08:17,581 INFO L138 SettingsManager]: * Use SBE=true [2020-10-28 10:08:17,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-28 10:08:17,581 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-28 10:08:17,581 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-28 10:08:17,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-28 10:08:17,582 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-28 10:08:17,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-28 10:08:17,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-28 10:08:17,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-28 10:08:17,583 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-28 10:08:17,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-28 10:08:17,583 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-28 10:08:17,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-28 10:08:17,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-28 10:08:17,584 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-28 10:08:17,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-28 10:08:17,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-28 10:08:17,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:08:17,585 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-28 10:08:17,585 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-28 10:08:17,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-28 10:08:17,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-28 10:08:17,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-28 10:08:17,586 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-28 10:08:17,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-28 10:08:17,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true;unknown-allowed=true; [2020-10-28 10:08:18,040 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-28 10:08:18,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-28 10:08:18,103 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-28 10:08:18,104 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-28 10:08:18,105 INFO L275 PluginConnector]: CDTParser initialized [2020-10-28 10:08:18,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label47.c [2020-10-28 10:08:18,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9636712bd/18c485d1b71040018676d82d3deda009/FLAGbed053552 [2020-10-28 10:08:19,112 INFO L306 CDTParser]: Found 1 translation units. [2020-10-28 10:08:19,114 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label47.c [2020-10-28 10:08:19,138 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9636712bd/18c485d1b71040018676d82d3deda009/FLAGbed053552 [2020-10-28 10:08:19,296 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9636712bd/18c485d1b71040018676d82d3deda009 [2020-10-28 10:08:19,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-28 10:08:19,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-28 10:08:19,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-28 10:08:19,310 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-28 10:08:19,315 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-28 10:08:19,316 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:08:19" (1/1) ... [2020-10-28 10:08:19,320 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17d59978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:19, skipping insertion in model container [2020-10-28 10:08:19,321 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 10:08:19" (1/1) ... [2020-10-28 10:08:19,330 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-28 10:08:19,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-28 10:08:19,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:08:19,809 INFO L203 MainTranslator]: Completed pre-run [2020-10-28 10:08:19,988 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-28 10:08:20,032 INFO L208 MainTranslator]: Completed translation [2020-10-28 10:08:20,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:20 WrapperNode [2020-10-28 10:08:20,033 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-28 10:08:20,034 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-28 10:08:20,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-28 10:08:20,035 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-28 10:08:20,049 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:20" (1/1) ... [2020-10-28 10:08:20,050 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:20" (1/1) ... [2020-10-28 10:08:20,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:20" (1/1) ... [2020-10-28 10:08:20,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:20" (1/1) ... [2020-10-28 10:08:20,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:20" (1/1) ... [2020-10-28 10:08:20,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:20" (1/1) ... [2020-10-28 10:08:20,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:20" (1/1) ... [2020-10-28 10:08:20,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-28 10:08:20,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-28 10:08:20,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-28 10:08:20,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-28 10:08:20,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:20" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-28 10:08:20,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-28 10:08:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-28 10:08:20,245 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-28 10:08:20,246 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-28 10:08:20,246 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-28 10:08:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-28 10:08:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-28 10:08:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-28 10:08:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-28 10:08:20,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-28 10:08:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-28 10:08:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-28 10:08:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-28 10:08:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-28 10:08:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-28 10:08:20,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-28 10:08:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-28 10:08:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-28 10:08:20,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-28 10:08:21,624 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-28 10:08:21,625 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-28 10:08:21,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:08:21 BoogieIcfgContainer [2020-10-28 10:08:21,627 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-28 10:08:21,629 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-28 10:08:21,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-28 10:08:21,633 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-28 10:08:21,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 10:08:19" (1/3) ... [2020-10-28 10:08:21,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384f44fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:08:21, skipping insertion in model container [2020-10-28 10:08:21,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 10:08:20" (2/3) ... [2020-10-28 10:08:21,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@384f44fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 10:08:21, skipping insertion in model container [2020-10-28 10:08:21,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 10:08:21" (3/3) ... [2020-10-28 10:08:21,637 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label47.c [2020-10-28 10:08:21,650 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-28 10:08:21,656 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-28 10:08:21,670 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-28 10:08:21,700 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-28 10:08:21,701 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-28 10:08:21,701 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-28 10:08:21,701 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-28 10:08:21,701 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-28 10:08:21,701 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-28 10:08:21,701 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-28 10:08:21,702 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-28 10:08:21,727 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-28 10:08:21,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2020-10-28 10:08:21,737 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:21,738 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] [2020-10-28 10:08:21,739 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:21,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:21,745 INFO L82 PathProgramCache]: Analyzing trace with hash -152736431, now seen corresponding path program 1 times [2020-10-28 10:08:21,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:21,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1936134265] [2020-10-28 10:08:21,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:21,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:22,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:22,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:23,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:23,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-28 10:08:23,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:23,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1919 [2020-10-28 10:08:23,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:23,925 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:23,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:08:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-28 10:08:23,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-28 10:08:23,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-28 10:08:24,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:24,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:24,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:24,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:24,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:24,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:24,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 10:08:24,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:24,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:24,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:24,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:24,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-28 10:08:24,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:24,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:08:24,270 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1936134265] [2020-10-28 10:08:24,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-28 10:08:24,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-28 10:08:24,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816029710] [2020-10-28 10:08:24,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:08:24,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:24,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:08:24,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:08:24,298 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-28 10:08:27,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:27,051 INFO L93 Difference]: Finished difference Result 703 states and 1239 transitions. [2020-10-28 10:08:27,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 10:08:27,056 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 80 [2020-10-28 10:08:27,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:27,077 INFO L225 Difference]: With dead ends: 703 [2020-10-28 10:08:27,077 INFO L226 Difference]: Without dead ends: 424 [2020-10-28 10:08:27,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:08:27,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-28 10:08:27,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 418. [2020-10-28 10:08:27,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-28 10:08:27,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 580 transitions. [2020-10-28 10:08:27,199 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 580 transitions. Word has length 80 [2020-10-28 10:08:27,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:27,201 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 580 transitions. [2020-10-28 10:08:27,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:08:27,202 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 580 transitions. [2020-10-28 10:08:27,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-28 10:08:27,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:27,216 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-28 10:08:27,216 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-28 10:08:27,216 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:27,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:27,218 INFO L82 PathProgramCache]: Analyzing trace with hash 347110222, now seen corresponding path program 1 times [2020-10-28 10:08:27,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:27,218 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981326289] [2020-10-28 10:08:27,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:27,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:27,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:27,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 103 [2020-10-28 10:08:27,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:27,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 285 [2020-10-28 10:08:27,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:27,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:27,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:27,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 10:08:27,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 10:08:27,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:27,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:27,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:27,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:27,767 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:27,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:27,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:27,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-28 10:08:27,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:27,772 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:27,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:27,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:27,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:27,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:27,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:27,808 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:27,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:27,821 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:08:27,821 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:27,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-28 10:08:27,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:27,822 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:27,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:27,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:27,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 10:08:27,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:08:27,846 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981326289] [2020-10-28 10:08:27,846 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:27,846 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:08:27,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736604370] [2020-10-28 10:08:27,848 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:08:27,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:27,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:08:27,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:08:27,850 INFO L87 Difference]: Start difference. First operand 418 states and 580 transitions. Second operand 5 states. [2020-10-28 10:08:29,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:29,374 INFO L93 Difference]: Finished difference Result 1247 states and 1767 transitions. [2020-10-28 10:08:29,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:08:29,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 91 [2020-10-28 10:08:29,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:29,390 INFO L225 Difference]: With dead ends: 1247 [2020-10-28 10:08:29,391 INFO L226 Difference]: Without dead ends: 835 [2020-10-28 10:08:29,394 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 [2020-10-28 10:08:29,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-10-28 10:08:29,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 694. [2020-10-28 10:08:29,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 694 states. [2020-10-28 10:08:29,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 694 states to 694 states and 906 transitions. [2020-10-28 10:08:29,474 INFO L78 Accepts]: Start accepts. Automaton has 694 states and 906 transitions. Word has length 91 [2020-10-28 10:08:29,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:29,474 INFO L481 AbstractCegarLoop]: Abstraction has 694 states and 906 transitions. [2020-10-28 10:08:29,474 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:08:29,475 INFO L276 IsEmpty]: Start isEmpty. Operand 694 states and 906 transitions. [2020-10-28 10:08:29,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-28 10:08:29,483 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:29,483 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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] [2020-10-28 10:08:29,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-28 10:08:29,484 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:29,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:29,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1035308575, now seen corresponding path program 1 times [2020-10-28 10:08:29,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:29,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353401139] [2020-10-28 10:08:29,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:29,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:29,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:30,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:30,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-28 10:08:30,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:30,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1201 [2020-10-28 10:08:30,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:30,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-28 10:08:30,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 10:08:30,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:30,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:30,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:30,895 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:30,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:30,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:30,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:08:30,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:30,896 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:30,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:30,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:30,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:30,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:30,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:30,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:30,925 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:30,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-28 10:08:30,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:30,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-28 10:08:30,926 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:30,926 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:30,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:30,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:30,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:30,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-10-28 10:08:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:30,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:30,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:30,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 10:08:30,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:30,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 10:08:30,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:30,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:30,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:30,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:30,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 10:08:30,970 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:31,027 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 21 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-10-28 10:08:31,027 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353401139] [2020-10-28 10:08:31,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:31,028 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-28 10:08:31,028 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946479075] [2020-10-28 10:08:31,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-28 10:08:31,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:31,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-28 10:08:31,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-28 10:08:31,031 INFO L87 Difference]: Start difference. First operand 694 states and 906 transitions. Second operand 6 states. [2020-10-28 10:08:33,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:33,166 INFO L93 Difference]: Finished difference Result 2347 states and 3204 transitions. [2020-10-28 10:08:33,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-28 10:08:33,167 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 106 [2020-10-28 10:08:33,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:33,188 INFO L225 Difference]: With dead ends: 2347 [2020-10-28 10:08:33,192 INFO L226 Difference]: Without dead ends: 1659 [2020-10-28 10:08:33,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:08:33,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2020-10-28 10:08:33,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1516. [2020-10-28 10:08:33,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2020-10-28 10:08:33,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 1958 transitions. [2020-10-28 10:08:33,299 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 1958 transitions. Word has length 106 [2020-10-28 10:08:33,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:33,299 INFO L481 AbstractCegarLoop]: Abstraction has 1516 states and 1958 transitions. [2020-10-28 10:08:33,300 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-28 10:08:33,300 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 1958 transitions. [2020-10-28 10:08:33,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2020-10-28 10:08:33,312 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:33,312 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:33,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-28 10:08:33,313 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:33,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:33,313 INFO L82 PathProgramCache]: Analyzing trace with hash -353955285, now seen corresponding path program 1 times [2020-10-28 10:08:33,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:33,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1211913343] [2020-10-28 10:08:33,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:33,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:33,418 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:35,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:36,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:37,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:37,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 118 [2020-10-28 10:08:37,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-28 10:08:37,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4034 [2020-10-28 10:08:37,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:37,381 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:37,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:37,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 36 [2020-10-28 10:08:37,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-28 10:08:37,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:37,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:37,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:37,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:37,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:37,560 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:37,560 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 10:08:37,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:37,560 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:37,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:37,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:37,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:37,561 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:37,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:37,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:37,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:37,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:37,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-28 10:08:37,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:37,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 10:08:37,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:37,614 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:37,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-28 10:08:37,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:37,670 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-28 10:08:37,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1211913343] [2020-10-28 10:08:37,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:37,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-28 10:08:37,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537191374] [2020-10-28 10:08:37,672 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-28 10:08:37,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:37,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-28 10:08:37,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-28 10:08:37,674 INFO L87 Difference]: Start difference. First operand 1516 states and 1958 transitions. Second operand 5 states. [2020-10-28 10:08:39,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:39,045 INFO L93 Difference]: Finished difference Result 3445 states and 4575 transitions. [2020-10-28 10:08:39,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-28 10:08:39,046 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 106 [2020-10-28 10:08:39,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:39,062 INFO L225 Difference]: With dead ends: 3445 [2020-10-28 10:08:39,062 INFO L226 Difference]: Without dead ends: 1935 [2020-10-28 10:08:39,069 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 [2020-10-28 10:08:39,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1935 states. [2020-10-28 10:08:39,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1935 to 1927. [2020-10-28 10:08:39,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1927 states. [2020-10-28 10:08:39,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2443 transitions. [2020-10-28 10:08:39,164 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2443 transitions. Word has length 106 [2020-10-28 10:08:39,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:39,164 INFO L481 AbstractCegarLoop]: Abstraction has 1927 states and 2443 transitions. [2020-10-28 10:08:39,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-28 10:08:39,165 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2443 transitions. [2020-10-28 10:08:39,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-28 10:08:39,171 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:39,171 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:39,171 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-28 10:08:39,171 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:39,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:39,172 INFO L82 PathProgramCache]: Analyzing trace with hash 292779620, now seen corresponding path program 1 times [2020-10-28 10:08:39,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:39,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475875832] [2020-10-28 10:08:39,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:39,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:39,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:40,290 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:40,290 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-28 10:08:40,290 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:40,290 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1066 [2020-10-28 10:08:40,291 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:40,291 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 10:08:40,291 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 10:08:40,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:40,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:40,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:40,426 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:40,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:40,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:40,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:40,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:08:40,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:40,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:40,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:40,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:40,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:40,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:40,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:40,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:40,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:40,470 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:40,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:08:40,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:40,471 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 10:08:40,471 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:40,471 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:40,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:40,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:40,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 10:08:40,472 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:40,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 10:08:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:40,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:40,595 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:40,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 10:08:40,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:40,596 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 96 [2020-10-28 10:08:40,596 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:40,597 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:40,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:40,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:40,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 10:08:40,597 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:40,677 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-28 10:08:40,678 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475875832] [2020-10-28 10:08:40,678 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:40,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-28 10:08:40,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958358760] [2020-10-28 10:08:40,680 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-28 10:08:40,680 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:40,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-28 10:08:40,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-28 10:08:40,682 INFO L87 Difference]: Start difference. First operand 1927 states and 2443 transitions. Second operand 8 states. [2020-10-28 10:08:43,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:43,418 INFO L93 Difference]: Finished difference Result 4200 states and 5573 transitions. [2020-10-28 10:08:43,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 10:08:43,419 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 135 [2020-10-28 10:08:43,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:43,436 INFO L225 Difference]: With dead ends: 4200 [2020-10-28 10:08:43,436 INFO L226 Difference]: Without dead ends: 2279 [2020-10-28 10:08:43,443 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:08:43,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2020-10-28 10:08:43,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2223. [2020-10-28 10:08:43,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2223 states. [2020-10-28 10:08:43,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 2726 transitions. [2020-10-28 10:08:43,559 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 2726 transitions. Word has length 135 [2020-10-28 10:08:43,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:43,559 INFO L481 AbstractCegarLoop]: Abstraction has 2223 states and 2726 transitions. [2020-10-28 10:08:43,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-28 10:08:43,559 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 2726 transitions. [2020-10-28 10:08:43,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-10-28 10:08:43,567 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:43,567 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:43,569 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-28 10:08:43,569 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:43,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:43,570 INFO L82 PathProgramCache]: Analyzing trace with hash 2020490623, now seen corresponding path program 1 times [2020-10-28 10:08:43,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:43,570 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [826243980] [2020-10-28 10:08:43,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:43,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:43,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:43,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:46,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:46,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-28 10:08:46,375 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:08:46,375 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2771 [2020-10-28 10:08:46,375 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:46,375 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:46,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:46,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-28 10:08:46,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 10:08:46,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:46,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:46,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:46,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:46,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:46,503 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:46,503 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:46,503 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:08:46,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:46,504 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:46,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:46,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:46,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:46,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:46,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:46,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:46,596 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:46,596 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:08:46,596 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:46,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-28 10:08:46,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:46,598 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:46,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:46,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:46,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 10:08:46,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:46,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:46,635 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:46,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:08:46,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:46,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 10:08:46,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:46,635 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:46,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-28 10:08:46,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:46,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 10:08:46,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:46,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:46,751 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:46,751 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 10:08:46,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:46,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-28 10:08:46,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:46,752 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:46,752 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:46,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:46,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 10:08:46,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:46,933 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-28 10:08:46,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [826243980] [2020-10-28 10:08:46,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:46,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:08:46,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926633503] [2020-10-28 10:08:46,935 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:08:46,935 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:46,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:08:46,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:08:46,936 INFO L87 Difference]: Start difference. First operand 2223 states and 2726 transitions. Second operand 7 states. [2020-10-28 10:08:48,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:48,696 INFO L93 Difference]: Finished difference Result 4190 states and 5153 transitions. [2020-10-28 10:08:48,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-28 10:08:48,697 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 150 [2020-10-28 10:08:48,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:48,711 INFO L225 Difference]: With dead ends: 4190 [2020-10-28 10:08:48,711 INFO L226 Difference]: Without dead ends: 2110 [2020-10-28 10:08:48,717 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-28 10:08:48,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2110 states. [2020-10-28 10:08:48,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2110 to 2104. [2020-10-28 10:08:48,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2104 states. [2020-10-28 10:08:48,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2104 states to 2104 states and 2527 transitions. [2020-10-28 10:08:48,824 INFO L78 Accepts]: Start accepts. Automaton has 2104 states and 2527 transitions. Word has length 150 [2020-10-28 10:08:48,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:48,825 INFO L481 AbstractCegarLoop]: Abstraction has 2104 states and 2527 transitions. [2020-10-28 10:08:48,825 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:08:48,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2104 states and 2527 transitions. [2020-10-28 10:08:48,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-28 10:08:48,832 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:48,832 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:48,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-28 10:08:48,833 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:48,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:48,833 INFO L82 PathProgramCache]: Analyzing trace with hash -307869605, now seen corresponding path program 1 times [2020-10-28 10:08:48,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:48,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [550239129] [2020-10-28 10:08:48,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:48,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:48,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:48,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:49,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:51,608 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:51,608 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-28 10:08:51,608 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-28 10:08:51,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2743 [2020-10-28 10:08:51,609 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:51,609 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:51,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:51,609 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-28 10:08:51,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 47 [2020-10-28 10:08:51,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:51,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:51,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:51,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:51,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:51,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:51,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-28 10:08:51,732 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:51,732 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:51,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:51,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:51,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:51,733 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:51,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:51,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:51,754 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:51,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:51,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:08:51,766 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:51,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-28 10:08:51,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:51,767 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:51,767 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:51,768 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:51,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 10:08:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:51,781 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:51,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:51,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-28 10:08:51,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:51,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 10:08:51,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:51,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:51,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-28 10:08:51,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:51,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-10-28 10:08:51,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:51,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:51,911 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:51,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 10:08:51,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:51,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-10-28 10:08:51,912 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:51,912 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:51,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:51,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:51,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 10:08:51,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:08:52,003 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-28 10:08:52,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [550239129] [2020-10-28 10:08:52,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:52,004 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:08:52,004 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850674377] [2020-10-28 10:08:52,004 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:08:52,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:52,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:08:52,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:08:52,006 INFO L87 Difference]: Start difference. First operand 2104 states and 2527 transitions. Second operand 7 states. [2020-10-28 10:08:53,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:53,533 INFO L93 Difference]: Finished difference Result 5610 states and 6796 transitions. [2020-10-28 10:08:53,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 10:08:53,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 152 [2020-10-28 10:08:53,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:53,554 INFO L225 Difference]: With dead ends: 5610 [2020-10-28 10:08:53,555 INFO L226 Difference]: Without dead ends: 3649 [2020-10-28 10:08:53,563 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-28 10:08:53,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2020-10-28 10:08:53,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 3236. [2020-10-28 10:08:53,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3236 states. [2020-10-28 10:08:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3236 states to 3236 states and 3831 transitions. [2020-10-28 10:08:53,706 INFO L78 Accepts]: Start accepts. Automaton has 3236 states and 3831 transitions. Word has length 152 [2020-10-28 10:08:53,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:53,707 INFO L481 AbstractCegarLoop]: Abstraction has 3236 states and 3831 transitions. [2020-10-28 10:08:53,707 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:08:53,707 INFO L276 IsEmpty]: Start isEmpty. Operand 3236 states and 3831 transitions. [2020-10-28 10:08:53,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-28 10:08:53,719 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:53,719 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:53,720 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-28 10:08:53,720 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:53,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:53,720 INFO L82 PathProgramCache]: Analyzing trace with hash 421886191, now seen corresponding path program 1 times [2020-10-28 10:08:53,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:53,721 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154841786] [2020-10-28 10:08:53,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:53,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:53,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:53,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:53,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:54,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:55,443 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:56,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-10-28 10:08:56,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-28 10:08:56,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2980 [2020-10-28 10:08:56,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:56,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:56,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-28 10:08:56,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 10:08:56,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-28 10:08:56,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:56,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:08:56,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:56,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:56,865 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:08:56,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:56,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:08:56,866 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:56,866 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:56,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:08:56,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:56,866 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:08:56,867 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:56,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:08:56,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:56,893 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,907 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:56,907 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:08:56,907 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:56,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-28 10:08:56,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:56,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:56,908 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:08:56,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:08:56,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 10:08:56,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:56,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 10:08:56,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:56,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:56,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:57,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:57,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-28 10:08:57,002 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:57,002 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 80 [2020-10-28 10:08:57,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:57,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:57,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:57,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:57,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-28 10:08:57,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:57,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-10-28 10:08:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:57,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:57,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:57,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 10:08:57,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:08:57,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-28 10:08:57,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:57,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:57,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:57,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:08:57,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-28 10:08:57,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:08:57,211 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 85 proven. 6 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-28 10:08:57,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154841786] [2020-10-28 10:08:57,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:08:57,212 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:08:57,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706455561] [2020-10-28 10:08:57,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:08:57,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:08:57,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:08:57,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:08:57,214 INFO L87 Difference]: Start difference. First operand 3236 states and 3831 transitions. Second operand 7 states. [2020-10-28 10:08:58,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:08:58,674 INFO L93 Difference]: Finished difference Result 6691 states and 8130 transitions. [2020-10-28 10:08:58,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 10:08:58,675 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 158 [2020-10-28 10:08:58,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:08:58,697 INFO L225 Difference]: With dead ends: 6691 [2020-10-28 10:08:58,698 INFO L226 Difference]: Without dead ends: 3598 [2020-10-28 10:08:58,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:08:58,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states. [2020-10-28 10:08:58,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 2976. [2020-10-28 10:08:58,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2976 states. [2020-10-28 10:08:58,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2976 states to 2976 states and 3469 transitions. [2020-10-28 10:08:58,855 INFO L78 Accepts]: Start accepts. Automaton has 2976 states and 3469 transitions. Word has length 158 [2020-10-28 10:08:58,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:08:58,855 INFO L481 AbstractCegarLoop]: Abstraction has 2976 states and 3469 transitions. [2020-10-28 10:08:58,855 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:08:58,855 INFO L276 IsEmpty]: Start isEmpty. Operand 2976 states and 3469 transitions. [2020-10-28 10:08:58,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-28 10:08:58,865 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:08:58,865 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:08:58,865 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-28 10:08:58,865 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:08:58,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:08:58,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1480455240, now seen corresponding path program 1 times [2020-10-28 10:08:58,866 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:08:58,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980705878] [2020-10-28 10:08:58,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:08:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:08:58,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:59,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:08:59,937 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:08:59,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-28 10:08:59,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:08:59,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1040 [2020-10-28 10:08:59,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:08:59,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:08:59,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:08:59,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-28 10:08:59,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:08:59,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:00,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:00,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:00,040 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:00,040 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:00,040 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:00,040 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 10:09:00,040 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:00,041 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:00,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:00,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:00,041 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:00,041 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:00,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:00,071 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:00,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:00,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-28 10:09:00,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:00,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-28 10:09:00,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:00,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:00,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:00,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:00,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-28 10:09:00,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:00,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-28 10:09:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:00,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:00,118 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:00,118 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:09:00,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:00,119 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-28 10:09:00,119 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:00,119 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:00,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 10:09:00,120 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:00,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-28 10:09:00,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:00,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:00,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:00,298 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 10:09:00,298 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:00,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-28 10:09:00,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:00,299 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 10:09:00,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:00,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:00,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-28 10:09:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:00,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:00,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:00,389 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 10:09:00,389 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:00,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-28 10:09:00,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:00,390 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:00,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:00,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 10:09:00,390 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:00,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-10-28 10:09:00,466 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 103 proven. 26 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-28 10:09:00,466 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980705878] [2020-10-28 10:09:00,467 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:00,467 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:00,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9823671] [2020-10-28 10:09:00,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:00,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:00,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:00,477 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:00,477 INFO L87 Difference]: Start difference. First operand 2976 states and 3469 transitions. Second operand 7 states. [2020-10-28 10:09:02,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:02,977 INFO L93 Difference]: Finished difference Result 5253 states and 6145 transitions. [2020-10-28 10:09:02,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 10:09:02,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2020-10-28 10:09:02,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:02,988 INFO L225 Difference]: With dead ends: 5253 [2020-10-28 10:09:02,989 INFO L226 Difference]: Without dead ends: 1997 [2020-10-28 10:09:02,997 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:09:03,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1997 states. [2020-10-28 10:09:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1997 to 1979. [2020-10-28 10:09:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1979 states. [2020-10-28 10:09:03,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1979 states to 1979 states and 2193 transitions. [2020-10-28 10:09:03,067 INFO L78 Accepts]: Start accepts. Automaton has 1979 states and 2193 transitions. Word has length 179 [2020-10-28 10:09:03,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:03,067 INFO L481 AbstractCegarLoop]: Abstraction has 1979 states and 2193 transitions. [2020-10-28 10:09:03,067 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:03,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1979 states and 2193 transitions. [2020-10-28 10:09:03,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-10-28 10:09:03,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:03,075 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:09:03,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-28 10:09:03,075 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:03,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:03,076 INFO L82 PathProgramCache]: Analyzing trace with hash 137857132, now seen corresponding path program 1 times [2020-10-28 10:09:03,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:03,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [498982343] [2020-10-28 10:09:03,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:03,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:03,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:04,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:04,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-28 10:09:04,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-28 10:09:04,413 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1294 [2020-10-28 10:09:04,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:04,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:04,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:04,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-28 10:09:04,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:09:04,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:04,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:04,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:04,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:04,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:04,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:04,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:04,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 10:09:04,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:04,533 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:04,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:04,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:04,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:04,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:04,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:04,606 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:04,606 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 10:09:04,606 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:04,607 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 10:09:04,607 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:04,607 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:04,607 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:04,608 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-28 10:09:04,608 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:04,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 10:09:04,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:04,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:04,666 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:04,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:09:04,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:04,667 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-28 10:09:04,667 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:04,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:04,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:04,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:04,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 10:09:04,668 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:04,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-10-28 10:09:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:04,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:04,737 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:04,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 10:09:04,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:04,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-28 10:09:04,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:04,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:04,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:04,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 10:09:04,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:04,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:04,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2020-10-28 10:09:04,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:04,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:04,788 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:04,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 10:09:04,789 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:04,789 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 10:09:04,789 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:04,789 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:04,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 10:09:04,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:04,790 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 137 proven. 26 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2020-10-28 10:09:04,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [498982343] [2020-10-28 10:09:04,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:04,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:04,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452597859] [2020-10-28 10:09:04,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:04,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:04,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:04,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:04,863 INFO L87 Difference]: Start difference. First operand 1979 states and 2193 transitions. Second operand 7 states. [2020-10-28 10:09:06,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:06,439 INFO L93 Difference]: Finished difference Result 4373 states and 4905 transitions. [2020-10-28 10:09:06,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:09:06,440 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 209 [2020-10-28 10:09:06,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:06,451 INFO L225 Difference]: With dead ends: 4373 [2020-10-28 10:09:06,451 INFO L226 Difference]: Without dead ends: 2404 [2020-10-28 10:09:06,456 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-28 10:09:06,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2020-10-28 10:09:06,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 2249. [2020-10-28 10:09:06,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2249 states. [2020-10-28 10:09:06,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2249 states to 2249 states and 2464 transitions. [2020-10-28 10:09:06,526 INFO L78 Accepts]: Start accepts. Automaton has 2249 states and 2464 transitions. Word has length 209 [2020-10-28 10:09:06,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:06,527 INFO L481 AbstractCegarLoop]: Abstraction has 2249 states and 2464 transitions. [2020-10-28 10:09:06,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:06,527 INFO L276 IsEmpty]: Start isEmpty. Operand 2249 states and 2464 transitions. [2020-10-28 10:09:06,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-10-28 10:09:06,535 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:06,535 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-28 10:09:06,536 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-28 10:09:06,536 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:06,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:06,537 INFO L82 PathProgramCache]: Analyzing trace with hash -538224901, now seen corresponding path program 1 times [2020-10-28 10:09:06,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:06,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260342831] [2020-10-28 10:09:06,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:06,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:06,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:07,023 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:07,024 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 262 [2020-10-28 10:09:07,024 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:07,024 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 436 [2020-10-28 10:09:07,024 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:07,025 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-28 10:09:07,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:09:07,025 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:07,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:07,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:07,145 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:07,146 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:07,146 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:07,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:09:07,147 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:07,147 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:07,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:07,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:07,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:07,148 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:07,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:07,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:07,172 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:07,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:07,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-28 10:09:07,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:07,190 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-28 10:09:07,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:07,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:07,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:07,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:07,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:07,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:07,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-28 10:09:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:07,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:07,254 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:07,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-28 10:09:07,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:07,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-28 10:09:07,255 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:07,256 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:07,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-28 10:09:07,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:07,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-28 10:09:07,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:07,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:07,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:07,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:09:07,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:07,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-28 10:09:07,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:07,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:07,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:07,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 10:09:07,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:07,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-28 10:09:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:07,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:07,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:07,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 10:09:07,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:07,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 10:09:07,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:07,359 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:07,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:07,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 10:09:07,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:07,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:07,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-28 10:09:07,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:07,391 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:07,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:07,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 10:09:07,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:07,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 10:09:07,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:07,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 10:09:07,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:07,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:07,496 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 192 proven. 26 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2020-10-28 10:09:07,496 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260342831] [2020-10-28 10:09:07,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:07,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:07,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710218469] [2020-10-28 10:09:07,498 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:07,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:07,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:07,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:07,500 INFO L87 Difference]: Start difference. First operand 2249 states and 2464 transitions. Second operand 7 states. [2020-10-28 10:09:09,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:09,009 INFO L93 Difference]: Finished difference Result 4500 states and 4953 transitions. [2020-10-28 10:09:09,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-28 10:09:09,010 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-10-28 10:09:09,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:09,024 INFO L225 Difference]: With dead ends: 4500 [2020-10-28 10:09:09,024 INFO L226 Difference]: Without dead ends: 2392 [2020-10-28 10:09:09,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-28 10:09:09,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2392 states. [2020-10-28 10:09:09,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2392 to 2388. [2020-10-28 10:09:09,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2388 states. [2020-10-28 10:09:09,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2388 states to 2388 states and 2607 transitions. [2020-10-28 10:09:09,106 INFO L78 Accepts]: Start accepts. Automaton has 2388 states and 2607 transitions. Word has length 242 [2020-10-28 10:09:09,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:09,107 INFO L481 AbstractCegarLoop]: Abstraction has 2388 states and 2607 transitions. [2020-10-28 10:09:09,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:09,108 INFO L276 IsEmpty]: Start isEmpty. Operand 2388 states and 2607 transitions. [2020-10-28 10:09:09,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-10-28 10:09:09,118 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:09,118 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:09:09,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-28 10:09:09,118 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:09,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:09,119 INFO L82 PathProgramCache]: Analyzing trace with hash 409927043, now seen corresponding path program 1 times [2020-10-28 10:09:09,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:09,120 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275337860] [2020-10-28 10:09:09,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:09,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:09,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:09,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 302 [2020-10-28 10:09:09,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:09,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 499 [2020-10-28 10:09:09,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:09,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-28 10:09:09,687 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:09:09,687 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:09,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:09,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:09,806 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:09,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:09,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:09,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:09,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-28 10:09:09,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:09,813 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:09,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:09,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:09,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:09,856 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:09,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:09,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-28 10:09:09,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:09,877 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 10:09:09,877 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:09,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:09,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:09,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:09,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:09,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:09,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-28 10:09:09,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:09,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:09,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:09,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-28 10:09:09,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:09,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-28 10:09:09,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:09,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:09,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:09,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-28 10:09:09,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:09,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-28 10:09:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:09,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:10,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:10,009 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:09:10,009 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:10,009 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-28 10:09:10,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:10,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:10,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 10:09:10,010 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:10,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-28 10:09:10,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:10,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:10,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:10,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 10:09:10,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:10,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-28 10:09:10,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:10,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:10,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:10,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 10:09:10,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:10,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:10,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-10-28 10:09:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:10,087 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:10,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:10,108 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 10:09:10,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:10,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 10:09:10,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:10,109 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:10,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:10,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 10:09:10,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:10,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:10,258 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 232 proven. 26 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2020-10-28 10:09:10,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275337860] [2020-10-28 10:09:10,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:10,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:10,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129611015] [2020-10-28 10:09:10,260 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:10,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:10,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:10,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:10,261 INFO L87 Difference]: Start difference. First operand 2388 states and 2607 transitions. Second operand 7 states. [2020-10-28 10:09:11,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:11,716 INFO L93 Difference]: Finished difference Result 4635 states and 5061 transitions. [2020-10-28 10:09:11,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-28 10:09:11,717 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 282 [2020-10-28 10:09:11,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:11,727 INFO L225 Difference]: With dead ends: 4635 [2020-10-28 10:09:11,727 INFO L226 Difference]: Without dead ends: 2251 [2020-10-28 10:09:11,733 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-28 10:09:11,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2251 states. [2020-10-28 10:09:11,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2251 to 2245. [2020-10-28 10:09:11,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2245 states. [2020-10-28 10:09:11,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2245 states to 2245 states and 2419 transitions. [2020-10-28 10:09:11,793 INFO L78 Accepts]: Start accepts. Automaton has 2245 states and 2419 transitions. Word has length 282 [2020-10-28 10:09:11,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:11,794 INFO L481 AbstractCegarLoop]: Abstraction has 2245 states and 2419 transitions. [2020-10-28 10:09:11,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:11,794 INFO L276 IsEmpty]: Start isEmpty. Operand 2245 states and 2419 transitions. [2020-10-28 10:09:11,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-10-28 10:09:11,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:11,804 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:09:11,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-28 10:09:11,804 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:11,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:11,805 INFO L82 PathProgramCache]: Analyzing trace with hash -1782207827, now seen corresponding path program 1 times [2020-10-28 10:09:11,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:11,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [986415861] [2020-10-28 10:09:11,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:11,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:11,909 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:12,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:12,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-28 10:09:12,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:12,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 464 [2020-10-28 10:09:12,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:12,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:12,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:12,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-28 10:09:12,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-28 10:09:12,334 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:12,501 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-28 10:09:12,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-28 10:09:12,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:12,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:12,513 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:12,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-28 10:09:12,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:12,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-28 10:09:12,514 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:12,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:12,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:12,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:12,515 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:12,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-28 10:09:12,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:12,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:12,540 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:12,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-28 10:09:12,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:12,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-28 10:09:12,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:12,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:12,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:12,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:12,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-28 10:09:12,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:12,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:12,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:12,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-28 10:09:12,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:12,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-28 10:09:12,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:12,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:12,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:12,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:12,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-28 10:09:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:12,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:12,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:12,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-28 10:09:12,661 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:12,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-28 10:09:12,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:12,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:12,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-28 10:09:12,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-28 10:09:12,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-28 10:09:12,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:12,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-28 10:09:12,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:12,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:12,718 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:12,718 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-28 10:09:12,718 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:12,718 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-28 10:09:12,719 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:12,719 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:12,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-28 10:09:12,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-28 10:09:12,719 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-28 10:09:12,720 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:12,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-28 10:09:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:12,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:12,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:12,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-28 10:09:12,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:12,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-28 10:09:12,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:12,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:12,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:12,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-28 10:09:12,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:12,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-28 10:09:12,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2020-10-28 10:09:12,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-28 10:09:12,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-28 10:09:12,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-28 10:09:12,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 45 [2020-10-28 10:09:12,831 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-28 10:09:12,831 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-28 10:09:12,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-28 10:09:12,832 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-10-28 10:09:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-28 10:09:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-10-28 10:09:12,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-28 10:09:12,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-28 10:09:12,928 INFO L134 CoverageAnalysis]: Checked inductivity of 511 backedges. 249 proven. 26 refuted. 0 times theorem prover too weak. 236 trivial. 0 not checked. [2020-10-28 10:09:12,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [986415861] [2020-10-28 10:09:12,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-28 10:09:12,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-28 10:09:12,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774579297] [2020-10-28 10:09:12,929 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-28 10:09:12,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-28 10:09:12,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-28 10:09:12,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-28 10:09:12,931 INFO L87 Difference]: Start difference. First operand 2245 states and 2419 transitions. Second operand 7 states. [2020-10-28 10:09:14,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-28 10:09:14,481 INFO L93 Difference]: Finished difference Result 4762 states and 5161 transitions. [2020-10-28 10:09:14,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-28 10:09:14,482 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 284 [2020-10-28 10:09:14,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-28 10:09:14,493 INFO L225 Difference]: With dead ends: 4762 [2020-10-28 10:09:14,493 INFO L226 Difference]: Without dead ends: 2521 [2020-10-28 10:09:14,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-28 10:09:14,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2521 states. [2020-10-28 10:09:14,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2521 to 2519. [2020-10-28 10:09:14,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2519 states. [2020-10-28 10:09:14,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 2708 transitions. [2020-10-28 10:09:14,565 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 2708 transitions. Word has length 284 [2020-10-28 10:09:14,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-28 10:09:14,565 INFO L481 AbstractCegarLoop]: Abstraction has 2519 states and 2708 transitions. [2020-10-28 10:09:14,565 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-28 10:09:14,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 2708 transitions. [2020-10-28 10:09:14,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-10-28 10:09:14,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-28 10:09:14,576 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-28 10:09:14,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-28 10:09:14,576 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-28 10:09:14,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-28 10:09:14,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1082356908, now seen corresponding path program 1 times [2020-10-28 10:09:14,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-28 10:09:14,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985764726] [2020-10-28 10:09:14,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-28 10:09:14,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-28 10:09:14,696 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-28 10:09:14,696 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-28 10:09:14,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-28 10:09:14,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 10:09:14 BoogieIcfgContainer [2020-10-28 10:09:14,748 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-28 10:09:14,750 INFO L168 Benchmark]: Toolchain (without parser) took 55447.54 ms. Allocated memory was 151.0 MB in the beginning and 994.1 MB in the end (delta: 843.1 MB). Free memory was 123.7 MB in the beginning and 946.2 MB in the end (delta: -822.5 MB). Peak memory consumption was 496.1 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:14,750 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-28 10:09:14,751 INFO L168 Benchmark]: CACSL2BoogieTranslator took 723.57 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 130.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:14,751 INFO L168 Benchmark]: Boogie Preprocessor took 122.70 ms. Allocated memory is still 151.0 MB. Free memory was 130.4 MB in the beginning and 125.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:14,752 INFO L168 Benchmark]: RCFGBuilder took 1469.37 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 125.0 MB in the beginning and 141.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 82.7 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:14,753 INFO L168 Benchmark]: TraceAbstraction took 53118.82 ms. Allocated memory was 190.8 MB in the beginning and 994.1 MB in the end (delta: 803.2 MB). Free memory was 141.4 MB in the beginning and 946.2 MB in the end (delta: -804.8 MB). Peak memory consumption was 472.9 MB. Max. memory is 8.0 GB. [2020-10-28 10:09:14,756 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 151.0 MB. Free memory is still 122.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 723.57 ms. Allocated memory is still 151.0 MB. Free memory was 123.1 MB in the beginning and 130.4 MB in the end (delta: -7.3 MB). Peak memory consumption was 32.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 122.70 ms. Allocated memory is still 151.0 MB. Free memory was 130.4 MB in the beginning and 125.0 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1469.37 ms. Allocated memory was 151.0 MB in the beginning and 190.8 MB in the end (delta: 39.8 MB). Free memory was 125.0 MB in the beginning and 141.9 MB in the end (delta: -16.9 MB). Peak memory consumption was 82.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 53118.82 ms. Allocated memory was 190.8 MB in the beginning and 994.1 MB in the end (delta: 803.2 MB). Free memory was 141.4 MB in the beginning and 946.2 MB in the end (delta: -804.8 MB). Peak memory consumption was 472.9 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int a= 1; [L10] int d= 4; [L11] int e= 5; [L12] int f= 6; [L13] int c= 3; [L14] int b= 2; [L17] int u = 21; [L18] int v = 22; [L19] int w = 23; [L20] int x = 24; [L21] int y = 25; [L22] int z = 26; [L24] int a17 = 1; [L25] int a7 = 0; [L26] int a20 = 1; [L27] int a8 = 15; [L28] int a12 = 8; [L29] int a16 = 5; [L30] int a21 = 1; [L582] int output = -1; [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L336] a17 = 0 [L337] a16 = 4 [L338] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L271] a20 = 0 [L272] a17 = 1 [L273] a16 = 6 [L274] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L65] a17 = 0 [L66] return 26; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND TRUE ((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))) [L75] a7 = 1 [L76] a17 = 1 [L77] a21 = 0 [L78] a20 = 1 [L79] a8 = 13 [L80] a16 = 5 [L81] return 26; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND TRUE ((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1))) [L151] a16 = 4 [L152] a17 = 0 [L153] return 25; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND TRUE ((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1))) [L234] a8 = 14 [L235] a7 = 0 [L236] a17 = 1 [L237] a21 = 1 [L238] a16 = 4 [L239] return -1; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L339] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L347] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L355] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L357] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L363] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L365] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L367] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L374] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L379] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L384] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L393] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L396] COND TRUE (((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)) [L397] CALL reach_error() [L4] __assert_fail("0", "Problem01_label47.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 53.0s, OverallIterations: 14, TraceHistogramMax: 7, AutomataDifference: 24.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 394 SDtfs, 5608 SDslu, 471 SDs, 0 SdLazy, 11416 SolverSat, 1490 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 247 GetRequests, 144 SyntacticMatches, 2 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3236occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 13 MinimizatonAttempts, 1580 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 25.6s InterpolantComputationTime, 2469 NumberOfCodeBlocks, 2469 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2161 ConstructedInterpolants, 0 QuantifiedInterpolants, 1255742 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 2113/2259 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...