/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=DEEPEST --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_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-27 15:35:00,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-27 15:35:00,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-27 15:35:00,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-27 15:35:00,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-27 15:35:00,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-27 15:35:00,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-27 15:35:00,434 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-27 15:35:00,436 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-27 15:35:00,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-27 15:35:00,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-27 15:35:00,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-27 15:35:00,441 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-27 15:35:00,442 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-27 15:35:00,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-27 15:35:00,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-27 15:35:00,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-27 15:35:00,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-27 15:35:00,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-27 15:35:00,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-27 15:35:00,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-27 15:35:00,457 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-27 15:35:00,459 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-27 15:35:00,460 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-27 15:35:00,464 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-27 15:35:00,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-27 15:35:00,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-27 15:35:00,466 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-27 15:35:00,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-27 15:35:00,468 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-27 15:35:00,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-27 15:35:00,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-27 15:35:00,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-27 15:35:00,471 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-27 15:35:00,472 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-27 15:35:00,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-27 15:35:00,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-27 15:35:00,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-27 15:35:00,475 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-27 15:35:00,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-27 15:35:00,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-27 15:35:00,478 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 [2020-10-27 15:35:00,515 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-27 15:35:00,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-27 15:35:00,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-27 15:35:00,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-27 15:35:00,518 INFO L138 SettingsManager]: * Use SBE=true [2020-10-27 15:35:00,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-27 15:35:00,518 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-27 15:35:00,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-27 15:35:00,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-27 15:35:00,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-27 15:35:00,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-27 15:35:00,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-27 15:35:00,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-27 15:35:00,520 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-27 15:35:00,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-27 15:35:00,521 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-27 15:35:00,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-27 15:35:00,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-27 15:35:00,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-27 15:35:00,522 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-27 15:35:00,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-27 15:35:00,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-27 15:35:00,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-27 15:35:00,523 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-27 15:35:00,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-27 15:35:00,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-27 15:35:00,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-27 15:35:00,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-27 15:35:00,524 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-27 15:35:00,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=DEEPEST;log-additional-information=true;unknown-allowed=true; [2020-10-27 15:35:00,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-27 15:35:01,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-27 15:35:01,036 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-27 15:35:01,037 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-27 15:35:01,038 INFO L275 PluginConnector]: CDTParser initialized [2020-10-27 15:35:01,039 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label57.c [2020-10-27 15:35:01,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47e6cdd02/a0a3fcf12956412e9488170b68e9797a/FLAG812d6bd44 [2020-10-27 15:35:01,968 INFO L306 CDTParser]: Found 1 translation units. [2020-10-27 15:35:01,969 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label57.c [2020-10-27 15:35:01,994 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47e6cdd02/a0a3fcf12956412e9488170b68e9797a/FLAG812d6bd44 [2020-10-27 15:35:02,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/47e6cdd02/a0a3fcf12956412e9488170b68e9797a [2020-10-27 15:35:02,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-27 15:35:02,229 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-27 15:35:02,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-27 15:35:02,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-27 15:35:02,239 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-27 15:35:02,240 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:02" (1/1) ... [2020-10-27 15:35:02,250 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c73d52a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:02, skipping insertion in model container [2020-10-27 15:35:02,250 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 03:35:02" (1/1) ... [2020-10-27 15:35:02,260 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-27 15:35:02,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-27 15:35:02,891 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:35:02,906 INFO L203 MainTranslator]: Completed pre-run [2020-10-27 15:35:03,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-27 15:35:03,109 INFO L208 MainTranslator]: Completed translation [2020-10-27 15:35:03,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:03 WrapperNode [2020-10-27 15:35:03,110 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-27 15:35:03,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-27 15:35:03,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-27 15:35:03,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-27 15:35:03,125 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:03" (1/1) ... [2020-10-27 15:35:03,126 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:03" (1/1) ... [2020-10-27 15:35:03,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:03" (1/1) ... [2020-10-27 15:35:03,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:03" (1/1) ... [2020-10-27 15:35:03,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:03" (1/1) ... [2020-10-27 15:35:03,204 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:03" (1/1) ... [2020-10-27 15:35:03,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:03" (1/1) ... [2020-10-27 15:35:03,219 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-27 15:35:03,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-27 15:35:03,220 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-27 15:35:03,220 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-27 15:35:03,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:03" (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 [2020-10-27 15:35:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-27 15:35:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-27 15:35:03,310 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-27 15:35:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-27 15:35:03,311 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-27 15:35:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-27 15:35:03,311 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-27 15:35:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-27 15:35:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-27 15:35:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-27 15:35:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-27 15:35:03,312 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-27 15:35:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-27 15:35:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-27 15:35:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-27 15:35:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-27 15:35:03,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-27 15:35:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-27 15:35:03,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-27 15:35:04,545 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-27 15:35:04,545 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-27 15:35:04,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:04 BoogieIcfgContainer [2020-10-27 15:35:04,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-27 15:35:04,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-27 15:35:04,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-27 15:35:04,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-27 15:35:04,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 03:35:02" (1/3) ... [2020-10-27 15:35:04,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395cb170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:04, skipping insertion in model container [2020-10-27 15:35:04,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 03:35:03" (2/3) ... [2020-10-27 15:35:04,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395cb170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 03:35:04, skipping insertion in model container [2020-10-27 15:35:04,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 03:35:04" (3/3) ... [2020-10-27 15:35:04,559 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label57.c [2020-10-27 15:35:04,572 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-27 15:35:04,578 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-27 15:35:04,592 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-27 15:35:04,623 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-27 15:35:04,624 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-27 15:35:04,624 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-27 15:35:04,624 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-27 15:35:04,624 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-27 15:35:04,624 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-27 15:35:04,624 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-27 15:35:04,624 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-27 15:35:04,648 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-27 15:35:04,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-27 15:35:04,658 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:04,659 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:04,660 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:04,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:04,667 INFO L82 PathProgramCache]: Analyzing trace with hash -56281429, now seen corresponding path program 1 times [2020-10-27 15:35:04,677 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:04,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1779968706] [2020-10-27 15:35:04,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:04,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:04,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:05,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:06,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:06,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-27 15:35:06,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:35:06,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1649 [2020-10-27 15:35:06,570 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 15:35:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:35:06,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-27 15:35:06,571 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:35:06,862 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:06,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:06,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:06,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:06,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:06,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:06,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:06,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-27 15:35:06,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:06,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:35:06,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:06,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:35:06,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1779968706] [2020-10-27 15:35:06,985 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-27 15:35:06,985 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-27 15:35:06,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167586993] [2020-10-27 15:35:06,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:06,996 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:07,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:07,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:07,020 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-27 15:35:08,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:08,927 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-27 15:35:08,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:08,929 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-10-27 15:35:08,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:08,945 INFO L225 Difference]: With dead ends: 562 [2020-10-27 15:35:08,945 INFO L226 Difference]: Without dead ends: 287 [2020-10-27 15:35:08,952 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:08,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-27 15:35:09,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-27 15:35:09,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-27 15:35:09,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-27 15:35:09,044 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 85 [2020-10-27 15:35:09,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:09,045 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-27 15:35:09,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:09,045 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-27 15:35:09,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-27 15:35:09,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:09,061 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:09,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-27 15:35:09,061 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:09,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:09,062 INFO L82 PathProgramCache]: Analyzing trace with hash 99554545, now seen corresponding path program 1 times [2020-10-27 15:35:09,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:09,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [650481322] [2020-10-27 15:35:09,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:09,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:09,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:09,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:10,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:10,190 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:10,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-27 15:35:10,191 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:35:10,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1089 [2020-10-27 15:35:10,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:10,191 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:10,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-27 15:35:10,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-27 15:35:10,192 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:10,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:10,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:10,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:10,419 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:10,419 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:10,420 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:10,420 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:35:10,420 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:10,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:10,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:10,421 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:10,421 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:10,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:10,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:10,452 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:10,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:10,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-27 15:35:10,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:10,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-27 15:35:10,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:10,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:10,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:10,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-27 15:35:10,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:10,488 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:35:10,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [650481322] [2020-10-27 15:35:10,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:10,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:10,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956639635] [2020-10-27 15:35:10,509 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:10,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:10,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:10,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:10,510 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 5 states. [2020-10-27 15:35:10,644 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-27 15:35:12,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:12,117 INFO L93 Difference]: Finished difference Result 836 states and 1208 transitions. [2020-10-27 15:35:12,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:12,120 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 95 [2020-10-27 15:35:12,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:12,126 INFO L225 Difference]: With dead ends: 836 [2020-10-27 15:35:12,127 INFO L226 Difference]: Without dead ends: 561 [2020-10-27 15:35:12,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:12,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2020-10-27 15:35:12,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 555. [2020-10-27 15:35:12,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 555 states. [2020-10-27 15:35:12,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 760 transitions. [2020-10-27 15:35:12,183 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 760 transitions. Word has length 95 [2020-10-27 15:35:12,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:12,184 INFO L481 AbstractCegarLoop]: Abstraction has 555 states and 760 transitions. [2020-10-27 15:35:12,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:12,184 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 760 transitions. [2020-10-27 15:35:12,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-27 15:35:12,187 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:12,187 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:12,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-27 15:35:12,188 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:12,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:12,188 INFO L82 PathProgramCache]: Analyzing trace with hash 171566714, now seen corresponding path program 1 times [2020-10-27 15:35:12,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:12,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [322657653] [2020-10-27 15:35:12,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:12,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:12,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:12,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:13,035 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:13,036 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-27 15:35:13,036 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:35:13,036 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 822 [2020-10-27 15:35:13,036 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:13,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:13,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-27 15:35:13,037 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-27 15:35:13,037 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:13,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:13,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:13,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:13,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:13,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:13,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:13,215 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-27 15:35:13,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:13,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:13,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:13,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:13,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:13,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:13,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:13,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:13,281 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:13,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-27 15:35:13,282 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:13,282 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-27 15:35:13,282 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:13,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-27 15:35:13,283 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:13,334 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:35:13,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [322657653] [2020-10-27 15:35:13,336 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:13,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:13,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653972557] [2020-10-27 15:35:13,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:13,339 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:13,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:13,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:13,342 INFO L87 Difference]: Start difference. First operand 555 states and 760 transitions. Second operand 5 states. [2020-10-27 15:35:14,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:14,802 INFO L93 Difference]: Finished difference Result 1652 states and 2307 transitions. [2020-10-27 15:35:14,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:14,803 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-10-27 15:35:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:14,824 INFO L225 Difference]: With dead ends: 1652 [2020-10-27 15:35:14,825 INFO L226 Difference]: Without dead ends: 1103 [2020-10-27 15:35:14,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:14,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-10-27 15:35:14,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1103. [2020-10-27 15:35:14,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-10-27 15:35:14,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1464 transitions. [2020-10-27 15:35:14,935 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1464 transitions. Word has length 102 [2020-10-27 15:35:14,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:14,937 INFO L481 AbstractCegarLoop]: Abstraction has 1103 states and 1464 transitions. [2020-10-27 15:35:14,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:14,937 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1464 transitions. [2020-10-27 15:35:14,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-27 15:35:14,949 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:14,950 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:14,950 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-27 15:35:14,950 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:14,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:14,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1871192821, now seen corresponding path program 1 times [2020-10-27 15:35:14,955 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:14,955 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1701763659] [2020-10-27 15:35:14,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:14,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:15,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:15,114 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:15,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:16,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:17,046 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:17,046 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-27 15:35:17,047 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-27 15:35:17,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2045 [2020-10-27 15:35:17,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-27 15:35:17,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-27 15:35:17,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:17,397 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:17,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:17,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:17,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:17,414 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:17,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:17,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:17,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:35:17,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:17,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:17,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:17,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:17,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:35:17,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:17,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:17,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:17,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:17,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:35:17,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:17,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:35:17,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:17,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:17,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:17,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:35:17,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:35:17,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:17,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:17,558 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:17,558 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-27 15:35:17,558 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:17,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-27 15:35:17,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:17,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:17,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-27 15:35:17,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:17,729 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:35:17,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1701763659] [2020-10-27 15:35:17,730 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:17,730 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:17,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057255990] [2020-10-27 15:35:17,731 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:17,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:17,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:17,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:17,733 INFO L87 Difference]: Start difference. First operand 1103 states and 1464 transitions. Second operand 5 states. [2020-10-27 15:35:18,409 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-10-27 15:35:19,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:19,220 INFO L93 Difference]: Finished difference Result 2143 states and 2920 transitions. [2020-10-27 15:35:19,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:19,221 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-10-27 15:35:19,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:19,228 INFO L225 Difference]: With dead ends: 2143 [2020-10-27 15:35:19,229 INFO L226 Difference]: Without dead ends: 1103 [2020-10-27 15:35:19,232 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:19,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1103 states. [2020-10-27 15:35:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1103 to 1103. [2020-10-27 15:35:19,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1103 states. [2020-10-27 15:35:19,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1103 states to 1103 states and 1460 transitions. [2020-10-27 15:35:19,279 INFO L78 Accepts]: Start accepts. Automaton has 1103 states and 1460 transitions. Word has length 139 [2020-10-27 15:35:19,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:19,280 INFO L481 AbstractCegarLoop]: Abstraction has 1103 states and 1460 transitions. [2020-10-27 15:35:19,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:19,280 INFO L276 IsEmpty]: Start isEmpty. Operand 1103 states and 1460 transitions. [2020-10-27 15:35:19,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-27 15:35:19,284 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:19,284 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:19,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-27 15:35:19,285 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:19,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:19,286 INFO L82 PathProgramCache]: Analyzing trace with hash -74985041, now seen corresponding path program 1 times [2020-10-27 15:35:19,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:19,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [497126846] [2020-10-27 15:35:19,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:19,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:19,374 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:19,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:20,008 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:20,662 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:20,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:21,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:21,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-27 15:35:21,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-27 15:35:21,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2095 [2020-10-27 15:35:21,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 15:35:21,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-27 15:35:21,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:21,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:21,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:21,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:21,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:21,613 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:21,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:21,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:35:21,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:21,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:21,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:21,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:21,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:21,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:21,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:21,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:21,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-27 15:35:21,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:21,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:35:21,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:21,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:21,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:21,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:21,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:35:21,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-27 15:35:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:21,691 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:21,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:21,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-27 15:35:21,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:21,734 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-27 15:35:21,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:21,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:21,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:21,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-27 15:35:21,738 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-27 15:35:21,782 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:35:21,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [497126846] [2020-10-27 15:35:21,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:21,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:21,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595475270] [2020-10-27 15:35:21,784 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:21,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:21,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:21,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:21,786 INFO L87 Difference]: Start difference. First operand 1103 states and 1460 transitions. Second operand 5 states. [2020-10-27 15:35:23,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:23,384 INFO L93 Difference]: Finished difference Result 2887 states and 3964 transitions. [2020-10-27 15:35:23,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:23,385 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-10-27 15:35:23,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:23,400 INFO L225 Difference]: With dead ends: 2887 [2020-10-27 15:35:23,400 INFO L226 Difference]: Without dead ends: 1925 [2020-10-27 15:35:23,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:23,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2020-10-27 15:35:23,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1790. [2020-10-27 15:35:23,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2020-10-27 15:35:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2329 transitions. [2020-10-27 15:35:23,501 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2329 transitions. Word has length 141 [2020-10-27 15:35:23,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:23,501 INFO L481 AbstractCegarLoop]: Abstraction has 1790 states and 2329 transitions. [2020-10-27 15:35:23,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:23,502 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2329 transitions. [2020-10-27 15:35:23,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-27 15:35:23,509 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:23,510 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:23,510 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-27 15:35:23,510 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:23,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:23,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1062685846, now seen corresponding path program 1 times [2020-10-27 15:35:23,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:23,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292711702] [2020-10-27 15:35:23,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:23,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:23,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:23,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:24,482 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:26,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:26,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-27 15:35:26,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-27 15:35:26,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2552 [2020-10-27 15:35:26,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:26,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:26,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-27 15:35:26,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-27 15:35:26,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:26,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:26,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:26,334 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:26,343 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:26,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:26,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:26,344 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:35:26,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:26,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:26,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:26,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:26,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:35:26,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:26,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:26,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:26,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:26,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-27 15:35:26,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:26,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-27 15:35:26,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:26,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:26,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:26,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-27 15:35:26,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:26,566 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 69 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-27 15:35:26,567 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292711702] [2020-10-27 15:35:26,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:26,568 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-27 15:35:26,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913756311] [2020-10-27 15:35:26,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-27 15:35:26,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:26,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-27 15:35:26,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-27 15:35:26,578 INFO L87 Difference]: Start difference. First operand 1790 states and 2329 transitions. Second operand 5 states. [2020-10-27 15:35:28,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:28,180 INFO L93 Difference]: Finished difference Result 4261 states and 5651 transitions. [2020-10-27 15:35:28,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-27 15:35:28,182 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-10-27 15:35:28,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:28,193 INFO L225 Difference]: With dead ends: 4261 [2020-10-27 15:35:28,194 INFO L226 Difference]: Without dead ends: 1790 [2020-10-27 15:35:28,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-27 15:35:28,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1790 states. [2020-10-27 15:35:28,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1790 to 1790. [2020-10-27 15:35:28,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1790 states. [2020-10-27 15:35:28,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1790 states to 1790 states and 2148 transitions. [2020-10-27 15:35:28,275 INFO L78 Accepts]: Start accepts. Automaton has 1790 states and 2148 transitions. Word has length 158 [2020-10-27 15:35:28,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:28,276 INFO L481 AbstractCegarLoop]: Abstraction has 1790 states and 2148 transitions. [2020-10-27 15:35:28,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-27 15:35:28,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1790 states and 2148 transitions. [2020-10-27 15:35:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-27 15:35:28,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:28,282 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:28,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-27 15:35:28,283 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:28,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:28,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1591711788, now seen corresponding path program 1 times [2020-10-27 15:35:28,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:28,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386131957] [2020-10-27 15:35:28,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:28,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:28,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:28,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:28,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 184 [2020-10-27 15:35:28,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:28,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 390 [2020-10-27 15:35:28,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:28,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 15:35:28,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-27 15:35:28,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-27 15:35:28,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:28,881 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:28,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:28,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:28,892 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:28,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:28,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:28,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:28,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-27 15:35:28,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:28,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-27 15:35:28,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:28,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:28,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:28,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:28,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:35:28,966 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:28,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 15:35:28,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:35:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 15:35:28,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:28,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-27 15:35:29,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:29,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:29,052 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:29,052 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 15:35:29,052 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:29,052 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-27 15:35:29,053 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 15:35:29,053 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:29,053 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:29,116 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 79 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-27 15:35:29,116 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386131957] [2020-10-27 15:35:29,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:29,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:35:29,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128473794] [2020-10-27 15:35:29,117 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:35:29,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:29,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:35:29,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:35:29,119 INFO L87 Difference]: Start difference. First operand 1790 states and 2148 transitions. Second operand 7 states. [2020-10-27 15:35:30,101 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 15:35:30,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:30,776 INFO L93 Difference]: Finished difference Result 4148 states and 5017 transitions. [2020-10-27 15:35:30,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 15:35:30,778 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 170 [2020-10-27 15:35:30,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:30,793 INFO L225 Difference]: With dead ends: 4148 [2020-10-27 15:35:30,794 INFO L226 Difference]: Without dead ends: 2499 [2020-10-27 15:35:30,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:35:30,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2499 states. [2020-10-27 15:35:30,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2499 to 2219. [2020-10-27 15:35:30,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2219 states. [2020-10-27 15:35:30,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2219 states to 2219 states and 2617 transitions. [2020-10-27 15:35:30,889 INFO L78 Accepts]: Start accepts. Automaton has 2219 states and 2617 transitions. Word has length 170 [2020-10-27 15:35:30,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:30,890 INFO L481 AbstractCegarLoop]: Abstraction has 2219 states and 2617 transitions. [2020-10-27 15:35:30,890 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:35:30,890 INFO L276 IsEmpty]: Start isEmpty. Operand 2219 states and 2617 transitions. [2020-10-27 15:35:30,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-27 15:35:30,898 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:30,898 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:30,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-27 15:35:30,898 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:30,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:30,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1354134158, now seen corresponding path program 1 times [2020-10-27 15:35:30,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:30,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [967076085] [2020-10-27 15:35:30,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:30,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:30,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:32,288 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:32,289 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-27 15:35:32,289 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:35:32,289 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1357 [2020-10-27 15:35:32,290 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:32,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:32,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 15:35:32,290 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 15:35:32,291 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-27 15:35:32,452 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:32,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:32,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:32,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:32,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:32,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:32,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:32,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:35:32,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:32,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:32,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:32,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:32,468 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:32,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:32,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:32,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:32,500 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:35:32,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:32,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:35:32,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:32,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:32,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:32,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 15:35:32,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:32,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:35:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:32,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:32,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:32,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:35:32,539 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:32,539 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-27 15:35:32,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:32,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:32,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:35:32,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 15:35:32,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:32,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-27 15:35:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:32,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:32,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:32,630 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 15:35:32,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:32,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-27 15:35:32,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 15:35:32,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:32,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 93 proven. 14 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-27 15:35:32,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [967076085] [2020-10-27 15:35:32,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:32,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:35:32,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360402519] [2020-10-27 15:35:32,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:35:32,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:32,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:35:32,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:35:32,693 INFO L87 Difference]: Start difference. First operand 2219 states and 2617 transitions. Second operand 7 states. [2020-10-27 15:35:34,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:34,285 INFO L93 Difference]: Finished difference Result 4450 states and 5276 transitions. [2020-10-27 15:35:34,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 15:35:34,285 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 178 [2020-10-27 15:35:34,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:34,298 INFO L225 Difference]: With dead ends: 4450 [2020-10-27 15:35:34,299 INFO L226 Difference]: Without dead ends: 2237 [2020-10-27 15:35:34,305 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:35:34,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2237 states. [2020-10-27 15:35:34,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2237 to 2225. [2020-10-27 15:35:34,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2225 states. [2020-10-27 15:35:34,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2225 states to 2225 states and 2614 transitions. [2020-10-27 15:35:34,388 INFO L78 Accepts]: Start accepts. Automaton has 2225 states and 2614 transitions. Word has length 178 [2020-10-27 15:35:34,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:34,388 INFO L481 AbstractCegarLoop]: Abstraction has 2225 states and 2614 transitions. [2020-10-27 15:35:34,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:35:34,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2225 states and 2614 transitions. [2020-10-27 15:35:34,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-10-27 15:35:34,396 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:34,396 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:34,396 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-27 15:35:34,397 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:34,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:34,397 INFO L82 PathProgramCache]: Analyzing trace with hash 825621839, now seen corresponding path program 1 times [2020-10-27 15:35:34,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:34,403 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [475437686] [2020-10-27 15:35:34,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:34,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:34,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:35,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:35,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 209 [2020-10-27 15:35:35,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:35:35,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 888 [2020-10-27 15:35:35,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:35,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-27 15:35:35,319 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-27 15:35:35,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-27 15:35:35,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:35,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:35,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:35,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:35,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:35,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:35,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:35:35,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:35,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:35,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:35,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:35,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:35,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:35,475 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:35,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:35:35,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:35,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-27 15:35:35,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:35,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:35,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:35,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-27 15:35:35,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:35,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:35:35,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:35,492 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:35,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:35,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:35,539 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 15:35:35,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:35:35,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-27 15:35:35,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:35,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:35,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:35:35,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 15:35:35,541 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:35,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-27 15:35:35,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:35,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:35,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:35,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:35:35,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:35,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-27 15:35:35,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:35,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:35,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:35:35,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 15:35:35,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:35,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-10-27 15:35:35,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:35,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:35,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:35,686 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 15:35:35,686 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:35,686 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-27 15:35:35,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 15:35:35,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:35,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:35,764 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 112 proven. 32 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-27 15:35:35,764 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [475437686] [2020-10-27 15:35:35,764 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:35,765 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-27 15:35:35,765 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238428162] [2020-10-27 15:35:35,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-27 15:35:35,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:35,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-27 15:35:35,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-10-27 15:35:35,767 INFO L87 Difference]: Start difference. First operand 2225 states and 2614 transitions. Second operand 9 states. [2020-10-27 15:35:37,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:37,716 INFO L93 Difference]: Finished difference Result 5179 states and 6218 transitions. [2020-10-27 15:35:37,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-27 15:35:37,717 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 191 [2020-10-27 15:35:37,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:37,734 INFO L225 Difference]: With dead ends: 5179 [2020-10-27 15:35:37,735 INFO L226 Difference]: Without dead ends: 2960 [2020-10-27 15:35:37,741 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-10-27 15:35:37,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2020-10-27 15:35:37,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2914. [2020-10-27 15:35:37,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2914 states. [2020-10-27 15:35:37,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3372 transitions. [2020-10-27 15:35:37,858 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3372 transitions. Word has length 191 [2020-10-27 15:35:37,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:37,859 INFO L481 AbstractCegarLoop]: Abstraction has 2914 states and 3372 transitions. [2020-10-27 15:35:37,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-27 15:35:37,859 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3372 transitions. [2020-10-27 15:35:37,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2020-10-27 15:35:37,868 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:37,869 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:37,869 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-27 15:35:37,869 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:37,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:37,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1498533981, now seen corresponding path program 1 times [2020-10-27 15:35:37,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:37,870 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [962788701] [2020-10-27 15:35:37,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:37,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:37,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:37,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:39,364 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:39,365 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-27 15:35:39,365 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:35:39,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1463 [2020-10-27 15:35:39,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:39,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:39,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-27 15:35:39,366 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 15:35:39,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:39,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:39,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:39,552 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:39,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:39,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:39,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:39,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 15:35:39,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:39,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:39,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:39,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:39,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:39,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:39,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:39,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:39,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:35:39,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:39,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:35:39,598 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:39,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:39,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:39,599 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:39,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:35:39,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:39,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:39,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:39,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 15:35:39,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:39,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-27 15:35:39,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:39,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:39,636 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 15:35:39,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:39,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-27 15:35:39,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:39,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:39,680 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:39,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:35:39,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:39,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-27 15:35:39,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:35:39,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 15:35:39,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:39,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2020-10-27 15:35:39,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:39,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:39,777 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:39,777 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 15:35:39,777 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:39,777 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-27 15:35:39,778 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:39,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:39,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 15:35:39,778 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:39,778 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:39,836 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 130 proven. 14 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2020-10-27 15:35:39,836 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [962788701] [2020-10-27 15:35:39,836 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:39,837 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:35:39,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354578830] [2020-10-27 15:35:39,837 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:35:39,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:39,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:35:39,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:35:39,838 INFO L87 Difference]: Start difference. First operand 2914 states and 3372 transitions. Second operand 7 states. [2020-10-27 15:35:41,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:41,468 INFO L93 Difference]: Finished difference Result 5707 states and 6632 transitions. [2020-10-27 15:35:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 15:35:41,469 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 197 [2020-10-27 15:35:41,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:41,484 INFO L225 Difference]: With dead ends: 5707 [2020-10-27 15:35:41,485 INFO L226 Difference]: Without dead ends: 2934 [2020-10-27 15:35:41,492 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:35:41,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2934 states. [2020-10-27 15:35:41,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2934 to 2918. [2020-10-27 15:35:41,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2918 states. [2020-10-27 15:35:41,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 3359 transitions. [2020-10-27 15:35:41,588 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 3359 transitions. Word has length 197 [2020-10-27 15:35:41,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:41,588 INFO L481 AbstractCegarLoop]: Abstraction has 2918 states and 3359 transitions. [2020-10-27 15:35:41,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:35:41,588 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 3359 transitions. [2020-10-27 15:35:41,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-10-27 15:35:41,601 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:41,602 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:41,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-27 15:35:41,602 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:41,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:41,603 INFO L82 PathProgramCache]: Analyzing trace with hash -370422715, now seen corresponding path program 1 times [2020-10-27 15:35:41,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:41,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289673646] [2020-10-27 15:35:41,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:41,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:41,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:41,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:43,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:43,379 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 219 [2020-10-27 15:35:43,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:35:43,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1744 [2020-10-27 15:35:43,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:43,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:43,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-27 15:35:43,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 15:35:43,380 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:43,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:43,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:43,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:43,519 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:43,519 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:43,519 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-27 15:35:43,519 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:43,520 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:43,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:43,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:43,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:43,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:43,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:43,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-27 15:35:43,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:43,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-10-27 15:35:43,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-27 15:35:43,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:43,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-27 15:35:43,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:43,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:43,633 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:43,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:35:43,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:43,634 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-27 15:35:43,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:35:43,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 15:35:43,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:43,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-27 15:35:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:43,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:43,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:43,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 15:35:43,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:43,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-27 15:35:43,730 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:43,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:43,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 15:35:43,730 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:43,730 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:43,792 INFO L134 CoverageAnalysis]: Checked inductivity of 172 backedges. 125 proven. 14 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-27 15:35:43,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289673646] [2020-10-27 15:35:43,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:43,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:35:43,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923713378] [2020-10-27 15:35:43,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:35:43,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:43,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:35:43,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:35:43,794 INFO L87 Difference]: Start difference. First operand 2918 states and 3359 transitions. Second operand 7 states. [2020-10-27 15:35:45,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:45,650 INFO L93 Difference]: Finished difference Result 6097 states and 7336 transitions. [2020-10-27 15:35:45,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-27 15:35:45,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 203 [2020-10-27 15:35:45,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:45,672 INFO L225 Difference]: With dead ends: 6097 [2020-10-27 15:35:45,672 INFO L226 Difference]: Without dead ends: 3320 [2020-10-27 15:35:45,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-27 15:35:45,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3320 states. [2020-10-27 15:35:45,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3320 to 3198. [2020-10-27 15:35:45,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3198 states. [2020-10-27 15:35:45,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3198 states to 3198 states and 3662 transitions. [2020-10-27 15:35:45,791 INFO L78 Accepts]: Start accepts. Automaton has 3198 states and 3662 transitions. Word has length 203 [2020-10-27 15:35:45,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:45,792 INFO L481 AbstractCegarLoop]: Abstraction has 3198 states and 3662 transitions. [2020-10-27 15:35:45,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:35:45,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3198 states and 3662 transitions. [2020-10-27 15:35:45,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-10-27 15:35:45,803 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:45,804 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:45,804 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-27 15:35:45,804 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:45,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:45,805 INFO L82 PathProgramCache]: Analyzing trace with hash 496994701, now seen corresponding path program 1 times [2020-10-27 15:35:45,805 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:45,805 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2067942700] [2020-10-27 15:35:45,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:45,838 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:45,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:47,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:47,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 273 [2020-10-27 15:35:47,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-27 15:35:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2116 [2020-10-27 15:35:47,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-27 15:35:47,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-27 15:35:47,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:48,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:48,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:48,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:48,080 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:48,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:48,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:48,081 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-27 15:35:48,081 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:48,081 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:48,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:48,082 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:48,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:48,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:48,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:48,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-27 15:35:48,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:48,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-27 15:35:48,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:48,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:48,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:48,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-27 15:35:48,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:48,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-27 15:35:48,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:48,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:48,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:48,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-27 15:35:48,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:48,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-27 15:35:48,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:48,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:48,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:35:48,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-27 15:35:48,232 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:48,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-27 15:35:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:48,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:48,293 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:48,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-27 15:35:48,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:48,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-27 15:35:48,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:48,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:48,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-27 15:35:48,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:48,294 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:48,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-27 15:35:48,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:48,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:48,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:48,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:35:48,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:48,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-27 15:35:48,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:48,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-27 15:35:48,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:48,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:48,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2020-10-27 15:35:48,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:48,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:48,375 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:48,375 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 15:35:48,376 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:48,376 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-27 15:35:48,376 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:48,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:48,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 15:35:48,376 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:48,376 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:48,513 INFO L134 CoverageAnalysis]: Checked inductivity of 339 backedges. 181 proven. 72 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-10-27 15:35:48,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2067942700] [2020-10-27 15:35:48,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:48,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:35:48,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514832096] [2020-10-27 15:35:48,515 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:35:48,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:48,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:35:48,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:35:48,516 INFO L87 Difference]: Start difference. First operand 3198 states and 3662 transitions. Second operand 7 states. [2020-10-27 15:35:50,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:50,121 INFO L93 Difference]: Finished difference Result 6279 states and 7184 transitions. [2020-10-27 15:35:50,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-27 15:35:50,122 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2020-10-27 15:35:50,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:50,137 INFO L225 Difference]: With dead ends: 6279 [2020-10-27 15:35:50,137 INFO L226 Difference]: Without dead ends: 3222 [2020-10-27 15:35:50,145 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-27 15:35:50,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3222 states. [2020-10-27 15:35:50,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3222 to 3208. [2020-10-27 15:35:50,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-10-27 15:35:50,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3619 transitions. [2020-10-27 15:35:50,235 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3619 transitions. Word has length 253 [2020-10-27 15:35:50,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:50,236 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3619 transitions. [2020-10-27 15:35:50,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:35:50,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3619 transitions. [2020-10-27 15:35:50,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-10-27 15:35:50,247 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:50,248 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:50,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-27 15:35:50,248 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:50,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:50,248 INFO L82 PathProgramCache]: Analyzing trace with hash -359002954, now seen corresponding path program 1 times [2020-10-27 15:35:50,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:50,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767195104] [2020-10-27 15:35:50,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:50,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:50,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:50,758 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:50,759 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 306 [2020-10-27 15:35:50,759 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:50,759 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 447 [2020-10-27 15:35:50,759 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:50,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:50,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-27 15:35:50,759 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-27 15:35:50,760 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:50,936 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-27 15:35:50,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-27 15:35:50,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:50,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:50,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:50,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-27 15:35:50,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:50,950 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-27 15:35:50,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:50,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:50,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:50,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:50,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:50,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-27 15:35:50,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:50,974 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:50,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:50,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-27 15:35:50,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:50,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-27 15:35:50,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:50,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:50,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:50,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-27 15:35:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:50,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:50,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:50,999 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-27 15:35:50,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:51,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-27 15:35:51,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:51,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:51,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:51,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:51,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:51,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-27 15:35:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:51,036 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:51,079 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:51,080 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-27 15:35:51,080 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:51,080 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-27 15:35:51,080 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-27 15:35:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-27 15:35:51,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-27 15:35:51,081 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:51,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-27 15:35:51,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:51,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:51,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:51,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-27 15:35:51,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:51,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-27 15:35:51,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:51,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-27 15:35:51,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-27 15:35:51,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-27 15:35:51,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:51,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-27 15:35:51,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-27 15:35:51,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-27 15:35:51,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-27 15:35:51,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-27 15:35:51,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-27 15:35:51,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-27 15:35:51,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: DEEPEST [2020-10-27 15:35:51,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-27 15:35:51,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-27 15:35:51,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-27 15:35:51,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-27 15:35:51,322 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 237 proven. 14 refuted. 0 times theorem prover too weak. 170 trivial. 0 not checked. [2020-10-27 15:35:51,322 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767195104] [2020-10-27 15:35:51,322 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-27 15:35:51,322 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-27 15:35:51,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243846090] [2020-10-27 15:35:51,323 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-27 15:35:51,323 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-27 15:35:51,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-27 15:35:51,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-27 15:35:51,324 INFO L87 Difference]: Start difference. First operand 3208 states and 3619 transitions. Second operand 7 states. [2020-10-27 15:35:51,678 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-27 15:35:53,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-27 15:35:53,000 INFO L93 Difference]: Finished difference Result 6381 states and 7427 transitions. [2020-10-27 15:35:53,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-27 15:35:53,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 286 [2020-10-27 15:35:53,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-27 15:35:53,033 INFO L225 Difference]: With dead ends: 6381 [2020-10-27 15:35:53,033 INFO L226 Difference]: Without dead ends: 3314 [2020-10-27 15:35:53,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-27 15:35:53,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3314 states. [2020-10-27 15:35:53,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3314 to 3208. [2020-10-27 15:35:53,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3208 states. [2020-10-27 15:35:53,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3602 transitions. [2020-10-27 15:35:53,156 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3602 transitions. Word has length 286 [2020-10-27 15:35:53,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-27 15:35:53,156 INFO L481 AbstractCegarLoop]: Abstraction has 3208 states and 3602 transitions. [2020-10-27 15:35:53,156 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-27 15:35:53,156 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3602 transitions. [2020-10-27 15:35:53,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-27 15:35:53,168 INFO L414 BasicCegarLoop]: Found error trace [2020-10-27 15:35:53,168 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-27 15:35:53,168 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-27 15:35:53,168 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-27 15:35:53,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-27 15:35:53,169 INFO L82 PathProgramCache]: Analyzing trace with hash -586329355, now seen corresponding path program 1 times [2020-10-27 15:35:53,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-27 15:35:53,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251254165] [2020-10-27 15:35:53,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-27 15:35:53,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-27 15:35:53,291 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-27 15:35:53,291 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-27 15:35:53,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-27 15:35:53,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 03:35:53 BoogieIcfgContainer [2020-10-27 15:35:53,379 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-27 15:35:53,381 INFO L168 Benchmark]: Toolchain (without parser) took 51156.95 ms. Allocated memory was 125.8 MB in the beginning and 874.5 MB in the end (delta: 748.7 MB). Free memory was 98.8 MB in the beginning and 827.4 MB in the end (delta: -728.6 MB). Peak memory consumption was 521.5 MB. Max. memory is 8.0 GB. [2020-10-27 15:35:53,383 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 85.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-27 15:35:53,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 876.28 ms. Allocated memory was 125.8 MB in the beginning and 164.6 MB in the end (delta: 38.8 MB). Free memory was 98.1 MB in the beginning and 143.3 MB in the end (delta: -45.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. [2020-10-27 15:35:53,387 INFO L168 Benchmark]: Boogie Preprocessor took 107.72 ms. Allocated memory is still 164.6 MB. Free memory was 143.3 MB in the beginning and 138.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:35:53,388 INFO L168 Benchmark]: RCFGBuilder took 1328.44 ms. Allocated memory is still 164.6 MB. Free memory was 138.5 MB in the beginning and 81.9 MB in the end (delta: 56.6 MB). Peak memory consumption was 58.2 MB. Max. memory is 8.0 GB. [2020-10-27 15:35:53,388 INFO L168 Benchmark]: TraceAbstraction took 48828.80 ms. Allocated memory was 164.6 MB in the beginning and 874.5 MB in the end (delta: 709.9 MB). Free memory was 81.4 MB in the beginning and 827.4 MB in the end (delta: -746.0 MB). Peak memory consumption was 464.5 MB. Max. memory is 8.0 GB. [2020-10-27 15:35:53,395 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 125.8 MB. Free memory is still 85.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 876.28 ms. Allocated memory was 125.8 MB in the beginning and 164.6 MB in the end (delta: 38.8 MB). Free memory was 98.1 MB in the beginning and 143.3 MB in the end (delta: -45.2 MB). Peak memory consumption was 30.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 107.72 ms. Allocated memory is still 164.6 MB. Free memory was 143.3 MB in the beginning and 138.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1328.44 ms. Allocated memory is still 164.6 MB. Free memory was 138.5 MB in the beginning and 81.9 MB in the end (delta: 56.6 MB). Peak memory consumption was 58.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 48828.80 ms. Allocated memory was 164.6 MB in the beginning and 874.5 MB in the end (delta: 709.9 MB). Free memory was 81.4 MB in the beginning and 827.4 MB in the end (delta: -746.0 MB). Peak memory consumption was 464.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int a= 1; [L10] int d= 4; [L11] int e= 5; [L12] int f= 6; [L13] int c= 3; [L14] int b= 2; [L17] int u = 21; [L18] int v = 22; [L19] int w = 23; [L20] int x = 24; [L21] int y = 25; [L22] int z = 26; [L24] int a17 = 1; [L25] int a7 = 0; [L26] int a20 = 1; [L27] int a8 = 15; [L28] int a12 = 8; [L29] int a16 = 5; [L30] int a21 = 1; [L582] int output = -1; [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L336] a17 = 0 [L337] a16 = 4 [L338] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L271] a20 = 0 [L272] a17 = 1 [L273] a16 = 6 [L274] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L65] a17 = 0 [L66] return 26; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND TRUE ((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))) [L75] a7 = 1 [L76] a17 = 1 [L77] a21 = 0 [L78] a20 = 1 [L79] a8 = 13 [L80] a16 = 5 [L81] return 26; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND 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 TRUE ((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5)) [L368] a21 = 1 [L369] a7 = 0 [L370] a17 = 0 [L371] a8 = 14 [L372] a20 = 0 [L373] return -1; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L339] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L347] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L355] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L357] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L363] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L365] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L367] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L374] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L379] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L384] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L393] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L396] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L399] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L402] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L405] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L408] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L411] COND TRUE ((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)) [L412] CALL reach_error() [L4] __assert_fail("0", "Problem01_label57.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: 48.6s, OverallIterations: 14, TraceHistogramMax: 6, AutomataDifference: 21.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 402 SDtfs, 4576 SDslu, 488 SDs, 0 SdLazy, 9294 SolverSat, 1095 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 234 GetRequests, 133 SyntacticMatches, 7 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3208occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 13 MinimizatonAttempts, 743 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 23.7s InterpolantComputationTime, 2495 NumberOfCodeBlocks, 2495 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2185 ConstructedInterpolants, 0 QuantifiedInterpolants, 1196118 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 1507/1684 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...