/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.3 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-29 04:46:04,328 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-29 04:46:04,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-29 04:46:04,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-29 04:46:04,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-29 04:46:04,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-29 04:46:04,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-29 04:46:04,391 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-29 04:46:04,394 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-29 04:46:04,400 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-29 04:46:04,401 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-29 04:46:04,403 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-29 04:46:04,403 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-29 04:46:04,406 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-29 04:46:04,409 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-29 04:46:04,411 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-29 04:46:04,412 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-29 04:46:04,415 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-29 04:46:04,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-29 04:46:04,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-29 04:46:04,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-29 04:46:04,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-29 04:46:04,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-29 04:46:04,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-29 04:46:04,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-29 04:46:04,447 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-29 04:46:04,447 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-29 04:46:04,449 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-29 04:46:04,450 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-29 04:46:04,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-29 04:46:04,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-29 04:46:04,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-29 04:46:04,454 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-29 04:46:04,455 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-29 04:46:04,456 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-29 04:46:04,456 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-29 04:46:04,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-29 04:46:04,457 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-29 04:46:04,457 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-29 04:46:04,458 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-29 04:46:04,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-29 04:46:04,466 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-29 04:46:04,517 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-29 04:46:04,517 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-29 04:46:04,521 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-29 04:46:04,521 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-29 04:46:04,521 INFO L138 SettingsManager]: * Use SBE=true [2020-10-29 04:46:04,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-29 04:46:04,521 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-29 04:46:04,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-29 04:46:04,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-29 04:46:04,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-29 04:46:04,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-29 04:46:04,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-29 04:46:04,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-29 04:46:04,524 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-29 04:46:04,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-29 04:46:04,524 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-29 04:46:04,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-29 04:46:04,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-29 04:46:04,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-29 04:46:04,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-29 04:46:04,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-29 04:46:04,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:46:04,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-29 04:46:04,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-29 04:46:04,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-29 04:46:04,526 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-29 04:46:04,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-29 04:46:04,536 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-29 04:46:04,536 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-29 04:46:04,536 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.3;log-additional-information=true;unknown-allowed=true; [2020-10-29 04:46:04,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-29 04:46:04,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-29 04:46:04,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-29 04:46:04,960 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-29 04:46:04,961 INFO L275 PluginConnector]: CDTParser initialized [2020-10-29 04:46:04,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label20.c [2020-10-29 04:46:05,045 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e014f8b68/27de63f5f8e246a7806722cb60aee818/FLAG40c98396e [2020-10-29 04:46:05,823 INFO L306 CDTParser]: Found 1 translation units. [2020-10-29 04:46:05,824 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label20.c [2020-10-29 04:46:05,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e014f8b68/27de63f5f8e246a7806722cb60aee818/FLAG40c98396e [2020-10-29 04:46:06,059 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e014f8b68/27de63f5f8e246a7806722cb60aee818 [2020-10-29 04:46:06,062 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-29 04:46:06,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-29 04:46:06,072 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-29 04:46:06,072 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-29 04:46:06,076 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-29 04:46:06,077 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:46:06" (1/1) ... [2020-10-29 04:46:06,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e5388bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:06, skipping insertion in model container [2020-10-29 04:46:06,081 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:46:06" (1/1) ... [2020-10-29 04:46:06,089 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-29 04:46:06,136 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-29 04:46:06,571 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:46:06,581 INFO L203 MainTranslator]: Completed pre-run [2020-10-29 04:46:06,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-29 04:46:06,775 INFO L208 MainTranslator]: Completed translation [2020-10-29 04:46:06,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:06 WrapperNode [2020-10-29 04:46:06,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-29 04:46:06,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-29 04:46:06,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-29 04:46:06,777 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-29 04:46:06,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:06" (1/1) ... [2020-10-29 04:46:06,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:06" (1/1) ... [2020-10-29 04:46:06,852 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:06" (1/1) ... [2020-10-29 04:46:06,853 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:06" (1/1) ... [2020-10-29 04:46:06,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:06" (1/1) ... [2020-10-29 04:46:06,945 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:06" (1/1) ... [2020-10-29 04:46:06,959 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:06" (1/1) ... [2020-10-29 04:46:06,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-29 04:46:06,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-29 04:46:06,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-29 04:46:06,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-29 04:46:06,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:06" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-29 04:46:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-29 04:46:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-29 04:46:07,055 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-29 04:46:07,056 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-29 04:46:07,056 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-29 04:46:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-29 04:46:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-29 04:46:07,057 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-29 04:46:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-29 04:46:07,058 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-29 04:46:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-29 04:46:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-29 04:46:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-29 04:46:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-29 04:46:07,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-29 04:46:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-29 04:46:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-29 04:46:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-29 04:46:07,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-29 04:46:08,247 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-29 04:46:08,248 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-29 04:46:08,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:46:08 BoogieIcfgContainer [2020-10-29 04:46:08,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-29 04:46:08,252 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-29 04:46:08,252 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-29 04:46:08,255 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-29 04:46:08,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:46:06" (1/3) ... [2020-10-29 04:46:08,256 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0f7c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:46:08, skipping insertion in model container [2020-10-29 04:46:08,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:46:06" (2/3) ... [2020-10-29 04:46:08,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a0f7c89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:46:08, skipping insertion in model container [2020-10-29 04:46:08,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:46:08" (3/3) ... [2020-10-29 04:46:08,258 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label20.c [2020-10-29 04:46:08,270 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-29 04:46:08,275 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-29 04:46:08,289 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-29 04:46:08,318 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-29 04:46:08,318 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-29 04:46:08,318 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-29 04:46:08,318 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-29 04:46:08,319 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-29 04:46:08,319 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-29 04:46:08,319 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-29 04:46:08,319 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-29 04:46:08,348 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-29 04:46:08,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2020-10-29 04:46:08,358 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:08,359 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] [2020-10-29 04:46:08,360 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:08,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:08,367 INFO L82 PathProgramCache]: Analyzing trace with hash 687820115, now seen corresponding path program 1 times [2020-10-29 04:46:08,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:08,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [223838447] [2020-10-29 04:46:08,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:08,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:08,686 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:09,150 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:10,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:10,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-10-29 04:46:10,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:46:10,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1819 [2020-10-29 04:46:10,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:10,443 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:10,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:46:10,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:46:10,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 80 [2020-10-29 04:46:10,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 8 [2020-10-29 04:46:10,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:10,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:10,696 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:10,696 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:10,696 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:10,697 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 04:46:10,698 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:10,698 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:10,698 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:46:10,699 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:10,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:46:10,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [223838447] [2020-10-29 04:46:10,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-29 04:46:10,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-29 04:46:10,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382323817] [2020-10-29 04:46:10,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-29 04:46:10,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:10,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-29 04:46:10,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-29 04:46:10,781 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 4 states. [2020-10-29 04:46:12,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:12,572 INFO L93 Difference]: Finished difference Result 562 states and 961 transitions. [2020-10-29 04:46:12,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:46:12,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 79 [2020-10-29 04:46:12,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:12,589 INFO L225 Difference]: With dead ends: 562 [2020-10-29 04:46:12,589 INFO L226 Difference]: Without dead ends: 287 [2020-10-29 04:46:12,596 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:46:12,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-29 04:46:12,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2020-10-29 04:46:12,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-10-29 04:46:12,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 393 transitions. [2020-10-29 04:46:12,671 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 393 transitions. Word has length 79 [2020-10-29 04:46:12,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:12,672 INFO L481 AbstractCegarLoop]: Abstraction has 283 states and 393 transitions. [2020-10-29 04:46:12,672 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-29 04:46:12,672 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 393 transitions. [2020-10-29 04:46:12,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-29 04:46:12,677 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:12,677 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:46:12,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-29 04:46:12,678 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:12,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:12,679 INFO L82 PathProgramCache]: Analyzing trace with hash 1678381685, now seen corresponding path program 1 times [2020-10-29 04:46:12,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:12,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1702461956] [2020-10-29 04:46:12,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:12,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:12,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:12,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:13,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:13,886 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:13,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-29 04:46:13,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:46:13,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1156 [2020-10-29 04:46:13,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:13,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:13,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-29 04:46:13,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 04:46:13,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:14,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:14,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:14,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:14,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:14,064 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:14,064 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:14,064 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:46:14,064 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:14,064 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:14,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:14,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:14,065 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:14,065 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:14,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:14,090 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:14,098 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:14,098 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-29 04:46:14,098 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:14,098 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:46:14,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:14,099 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:14,099 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-29 04:46:14,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:14,126 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:46:14,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1702461956] [2020-10-29 04:46:14,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:14,127 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:46:14,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458637835] [2020-10-29 04:46:14,130 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:46:14,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:14,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:46:14,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:46:14,133 INFO L87 Difference]: Start difference. First operand 283 states and 393 transitions. Second operand 5 states. [2020-10-29 04:46:15,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:15,536 INFO L93 Difference]: Finished difference Result 838 states and 1189 transitions. [2020-10-29 04:46:15,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:46:15,540 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2020-10-29 04:46:15,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:15,550 INFO L225 Difference]: With dead ends: 838 [2020-10-29 04:46:15,550 INFO L226 Difference]: Without dead ends: 561 [2020-10-29 04:46:15,552 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:46:15,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2020-10-29 04:46:15,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 557. [2020-10-29 04:46:15,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-10-29 04:46:15,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 738 transitions. [2020-10-29 04:46:15,609 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 738 transitions. Word has length 87 [2020-10-29 04:46:15,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:15,610 INFO L481 AbstractCegarLoop]: Abstraction has 557 states and 738 transitions. [2020-10-29 04:46:15,610 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:46:15,610 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 738 transitions. [2020-10-29 04:46:15,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-10-29 04:46:15,616 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:15,616 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:46:15,616 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-29 04:46:15,617 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:15,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:15,617 INFO L82 PathProgramCache]: Analyzing trace with hash -667146030, now seen corresponding path program 1 times [2020-10-29 04:46:15,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:15,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [582340166] [2020-10-29 04:46:15,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:15,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:15,843 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:16,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:17,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:17,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-29 04:46:17,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:46:17,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2267 [2020-10-29 04:46:17,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:17,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-29 04:46:17,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 04:46:17,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:18,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:18,091 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:18,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:18,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:18,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:18,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-29 04:46:18,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:18,100 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:18,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:18,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:18,102 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:18,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:18,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:18,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:18,143 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-29 04:46:18,143 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:18,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-29 04:46:18,144 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:18,144 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:18,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:18,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:18,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-29 04:46:18,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:18,168 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:46:18,169 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [582340166] [2020-10-29 04:46:18,169 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:18,169 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:46:18,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094937299] [2020-10-29 04:46:18,170 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:46:18,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:18,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:46:18,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:46:18,175 INFO L87 Difference]: Start difference. First operand 557 states and 738 transitions. Second operand 5 states. [2020-10-29 04:46:19,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:19,589 INFO L93 Difference]: Finished difference Result 1386 states and 1889 transitions. [2020-10-29 04:46:19,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:46:19,590 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 88 [2020-10-29 04:46:19,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:19,596 INFO L225 Difference]: With dead ends: 1386 [2020-10-29 04:46:19,597 INFO L226 Difference]: Without dead ends: 835 [2020-10-29 04:46:19,598 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:46:19,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2020-10-29 04:46:19,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 831. [2020-10-29 04:46:19,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 831 states. [2020-10-29 04:46:19,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 831 states to 831 states and 1096 transitions. [2020-10-29 04:46:19,647 INFO L78 Accepts]: Start accepts. Automaton has 831 states and 1096 transitions. Word has length 88 [2020-10-29 04:46:19,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:19,648 INFO L481 AbstractCegarLoop]: Abstraction has 831 states and 1096 transitions. [2020-10-29 04:46:19,648 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:46:19,648 INFO L276 IsEmpty]: Start isEmpty. Operand 831 states and 1096 transitions. [2020-10-29 04:46:19,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-29 04:46:19,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:19,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:46:19,657 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-29 04:46:19,657 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:19,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:19,657 INFO L82 PathProgramCache]: Analyzing trace with hash -774840334, now seen corresponding path program 1 times [2020-10-29 04:46:19,658 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:19,658 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776995121] [2020-10-29 04:46:19,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:19,706 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:19,890 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:20,385 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:20,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:20,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-29 04:46:20,509 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:46:20,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 816 [2020-10-29 04:46:20,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:20,510 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:20,510 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-29 04:46:20,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 04:46:20,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:20,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:20,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:20,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:20,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:20,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:20,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:46:20,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:20,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:20,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:20,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:20,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:20,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:20,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:20,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:20,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:20,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:20,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 26 [2020-10-29 04:46:20,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:20,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 04:46:20,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:20,705 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:20,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:20,706 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-29 04:46:20,706 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:20,732 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-29 04:46:20,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776995121] [2020-10-29 04:46:20,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:20,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:46:20,733 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104324549] [2020-10-29 04:46:20,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:46:20,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:20,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:46:20,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:46:20,734 INFO L87 Difference]: Start difference. First operand 831 states and 1096 transitions. Second operand 5 states. [2020-10-29 04:46:22,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:22,135 INFO L93 Difference]: Finished difference Result 2345 states and 3177 transitions. [2020-10-29 04:46:22,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:46:22,136 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-29 04:46:22,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:22,148 INFO L225 Difference]: With dead ends: 2345 [2020-10-29 04:46:22,149 INFO L226 Difference]: Without dead ends: 1520 [2020-10-29 04:46:22,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:46:22,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2020-10-29 04:46:22,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1516. [2020-10-29 04:46:22,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1516 states. [2020-10-29 04:46:22,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1516 states to 1516 states and 1958 transitions. [2020-10-29 04:46:22,243 INFO L78 Accepts]: Start accepts. Automaton has 1516 states and 1958 transitions. Word has length 104 [2020-10-29 04:46:22,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:22,244 INFO L481 AbstractCegarLoop]: Abstraction has 1516 states and 1958 transitions. [2020-10-29 04:46:22,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:46:22,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1516 states and 1958 transitions. [2020-10-29 04:46:22,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-29 04:46:22,253 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:22,254 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:46:22,254 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-29 04:46:22,254 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:22,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:22,255 INFO L82 PathProgramCache]: Analyzing trace with hash 861603291, now seen corresponding path program 1 times [2020-10-29 04:46:22,256 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:22,257 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [589425661] [2020-10-29 04:46:22,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:22,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:22,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:22,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:22,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:25,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:25,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:27,314 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:27,315 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-29 04:46:27,315 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:46:27,315 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5016 [2020-10-29 04:46:27,315 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:27,315 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:27,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:27,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-29 04:46:27,316 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 04:46:27,316 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:27,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:27,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:27,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:27,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:27,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:27,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:27,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 04:46:27,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:27,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:27,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:27,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:27,481 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:27,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:27,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:27,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:27,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:46:27,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:27,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-29 04:46:27,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:27,546 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:27,546 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:27,547 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 18 [2020-10-29 04:46:27,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:46:27,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:27,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:27,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:27,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 32 [2020-10-29 04:46:27,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:27,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-29 04:46:27,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:27,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:27,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-29 04:46:27,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:27,653 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-29 04:46:27,653 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [589425661] [2020-10-29 04:46:27,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:27,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:46:27,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889665167] [2020-10-29 04:46:27,655 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:46:27,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:27,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:46:27,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:46:27,657 INFO L87 Difference]: Start difference. First operand 1516 states and 1958 transitions. Second operand 5 states. [2020-10-29 04:46:27,820 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-29 04:46:29,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:29,077 INFO L93 Difference]: Finished difference Result 4120 states and 5448 transitions. [2020-10-29 04:46:29,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:46:29,078 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 121 [2020-10-29 04:46:29,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:29,098 INFO L225 Difference]: With dead ends: 4120 [2020-10-29 04:46:29,098 INFO L226 Difference]: Without dead ends: 2610 [2020-10-29 04:46:29,105 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:46:29,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2610 states. [2020-10-29 04:46:29,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2610 to 2068. [2020-10-29 04:46:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2068 states. [2020-10-29 04:46:29,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2735 transitions. [2020-10-29 04:46:29,201 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2735 transitions. Word has length 121 [2020-10-29 04:46:29,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:29,201 INFO L481 AbstractCegarLoop]: Abstraction has 2068 states and 2735 transitions. [2020-10-29 04:46:29,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:46:29,201 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2735 transitions. [2020-10-29 04:46:29,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-10-29 04:46:29,213 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:29,214 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] [2020-10-29 04:46:29,214 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-29 04:46:29,214 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:29,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:29,215 INFO L82 PathProgramCache]: Analyzing trace with hash 535182259, now seen corresponding path program 1 times [2020-10-29 04:46:29,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:29,215 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529386160] [2020-10-29 04:46:29,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:29,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:29,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:29,723 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:30,943 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:30,944 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 147 [2020-10-29 04:46:30,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:46:30,945 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1693 [2020-10-29 04:46:30,945 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:30,945 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:30,945 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 66 [2020-10-29 04:46:30,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-29 04:46:30,946 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:31,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:31,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:31,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:31,122 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:31,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:31,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:31,122 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-29 04:46:31,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:31,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:31,123 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:31,124 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:31,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:31,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:31,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:31,150 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:31,150 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:46:31,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:31,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:46:31,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:31,151 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:31,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:31,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:31,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:31,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:31,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:46:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:31,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:31,204 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:31,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-29 04:46:31,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:31,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-29 04:46:31,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:31,205 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:31,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-29 04:46:31,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:31,246 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-29 04:46:31,247 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529386160] [2020-10-29 04:46:31,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:31,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-29 04:46:31,248 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460394785] [2020-10-29 04:46:31,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-29 04:46:31,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:31,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-29 04:46:31,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-29 04:46:31,257 INFO L87 Difference]: Start difference. First operand 2068 states and 2735 transitions. Second operand 5 states. [2020-10-29 04:46:32,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:32,520 INFO L93 Difference]: Finished difference Result 5915 states and 7885 transitions. [2020-10-29 04:46:32,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-29 04:46:32,528 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-10-29 04:46:32,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:32,550 INFO L225 Difference]: With dead ends: 5915 [2020-10-29 04:46:32,550 INFO L226 Difference]: Without dead ends: 3853 [2020-10-29 04:46:32,557 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-29 04:46:32,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3853 states. [2020-10-29 04:46:32,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3853 to 3309. [2020-10-29 04:46:32,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3309 states. [2020-10-29 04:46:32,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3309 states to 3309 states and 4316 transitions. [2020-10-29 04:46:32,689 INFO L78 Accepts]: Start accepts. Automaton has 3309 states and 4316 transitions. Word has length 133 [2020-10-29 04:46:32,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:32,690 INFO L481 AbstractCegarLoop]: Abstraction has 3309 states and 4316 transitions. [2020-10-29 04:46:32,690 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-29 04:46:32,690 INFO L276 IsEmpty]: Start isEmpty. Operand 3309 states and 4316 transitions. [2020-10-29 04:46:32,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-29 04:46:32,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:32,698 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] [2020-10-29 04:46:32,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-29 04:46:32,698 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:32,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:32,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1084455767, now seen corresponding path program 1 times [2020-10-29 04:46:32,699 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:32,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1988030415] [2020-10-29 04:46:32,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:32,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:32,757 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:32,816 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:33,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:33,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-29 04:46:33,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:46:33,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 623 [2020-10-29 04:46:33,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:33,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-29 04:46:33,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 04:46:33,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:33,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:33,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:33,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:33,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:33,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:33,495 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:33,495 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:46:33,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:33,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:33,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:33,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:33,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:33,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:33,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:33,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:33,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:46:33,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:33,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:46:33,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:33,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:33,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:33,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-29 04:46:33,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:33,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:46:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:33,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:33,654 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:33,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 04:46:33,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:33,655 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-29 04:46:33,655 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:33,655 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:46:33,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 04:46:33,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:33,748 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-29 04:46:33,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1988030415] [2020-10-29 04:46:33,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:33,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:46:33,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892646945] [2020-10-29 04:46:33,751 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:46:33,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:33,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:46:33,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:46:33,752 INFO L87 Difference]: Start difference. First operand 3309 states and 4316 transitions. Second operand 7 states. [2020-10-29 04:46:33,934 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-29 04:46:35,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:35,652 INFO L93 Difference]: Finished difference Result 6992 states and 9445 transitions. [2020-10-29 04:46:35,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-29 04:46:35,653 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 135 [2020-10-29 04:46:35,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:35,675 INFO L225 Difference]: With dead ends: 6992 [2020-10-29 04:46:35,675 INFO L226 Difference]: Without dead ends: 3689 [2020-10-29 04:46:35,684 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:46:35,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3689 states. [2020-10-29 04:46:35,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3689 to 3333. [2020-10-29 04:46:35,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3333 states. [2020-10-29 04:46:35,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3333 states to 3333 states and 4306 transitions. [2020-10-29 04:46:35,827 INFO L78 Accepts]: Start accepts. Automaton has 3333 states and 4306 transitions. Word has length 135 [2020-10-29 04:46:35,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:35,827 INFO L481 AbstractCegarLoop]: Abstraction has 3333 states and 4306 transitions. [2020-10-29 04:46:35,827 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:46:35,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3333 states and 4306 transitions. [2020-10-29 04:46:35,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-10-29 04:46:35,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:35,838 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:46:35,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-29 04:46:35,838 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:35,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:35,839 INFO L82 PathProgramCache]: Analyzing trace with hash -2022835909, now seen corresponding path program 1 times [2020-10-29 04:46:35,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:35,840 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [327442228] [2020-10-29 04:46:35,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:35,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:35,881 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:35,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:36,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:38,637 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:38,637 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-29 04:46:38,637 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-29 04:46:38,638 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2767 [2020-10-29 04:46:38,638 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:38,638 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 69 [2020-10-29 04:46:38,638 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-29 04:46:38,639 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:38,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:38,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:38,772 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:38,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:38,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:38,773 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:46:38,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:38,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:38,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:38,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:38,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:38,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:38,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:38,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:38,800 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:38,800 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:46:38,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:38,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:46:38,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:38,801 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:38,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:38,801 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:38,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:38,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:38,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:46:38,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:38,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:38,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:38,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:46:38,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:38,812 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:46:38,812 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:38,812 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:38,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:38,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:38,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:38,813 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:38,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 04:46:38,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:38,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:38,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:38,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 30 [2020-10-29 04:46:38,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:38,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-29 04:46:38,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:38,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:38,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:38,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:38,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 24 [2020-10-29 04:46:38,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:38,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2020-10-29 04:46:38,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:38,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:38,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:38,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 04:46:38,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:38,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-29 04:46:38,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:38,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:38,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:38,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:46:38,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 04:46:38,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:39,064 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-29 04:46:39,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [327442228] [2020-10-29 04:46:39,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:39,065 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:46:39,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277477953] [2020-10-29 04:46:39,066 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:46:39,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:39,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:46:39,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:46:39,067 INFO L87 Difference]: Start difference. First operand 3333 states and 4306 transitions. Second operand 7 states. [2020-10-29 04:46:39,355 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 04:46:40,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:40,845 INFO L93 Difference]: Finished difference Result 6976 states and 9018 transitions. [2020-10-29 04:46:40,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 04:46:40,849 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 179 [2020-10-29 04:46:40,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:40,867 INFO L225 Difference]: With dead ends: 6976 [2020-10-29 04:46:40,867 INFO L226 Difference]: Without dead ends: 3649 [2020-10-29 04:46:40,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:46:40,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3649 states. [2020-10-29 04:46:40,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3649 to 3238. [2020-10-29 04:46:40,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3238 states. [2020-10-29 04:46:40,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3238 states to 3238 states and 4053 transitions. [2020-10-29 04:46:40,998 INFO L78 Accepts]: Start accepts. Automaton has 3238 states and 4053 transitions. Word has length 179 [2020-10-29 04:46:40,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:40,999 INFO L481 AbstractCegarLoop]: Abstraction has 3238 states and 4053 transitions. [2020-10-29 04:46:40,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:46:40,999 INFO L276 IsEmpty]: Start isEmpty. Operand 3238 states and 4053 transitions. [2020-10-29 04:46:41,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-29 04:46:41,008 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:41,009 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:46:41,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-29 04:46:41,009 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:41,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:41,010 INFO L82 PathProgramCache]: Analyzing trace with hash 988575579, now seen corresponding path program 1 times [2020-10-29 04:46:41,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:41,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [15605522] [2020-10-29 04:46:41,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:41,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:41,049 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:41,099 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:41,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:41,697 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:43,442 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:46,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:46,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-10-29 04:46:46,057 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-29 04:46:46,057 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5019 [2020-10-29 04:46:46,057 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:46,057 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:46,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:46,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 60 [2020-10-29 04:46:46,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-10-29 04:46:46,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:46,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:46,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:46,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:46,194 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:46,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:46,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:46,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:46:46,195 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:46,195 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:46,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:46,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:46,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:46,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:46,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:46,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:46,219 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:46,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:46,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:46:46,223 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:46,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-29 04:46:46,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:46,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:46,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:46,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:46,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:46:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:46,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:46,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:46,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:46:46,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:46,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:46:46,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:46,238 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:46,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:46,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:46,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:46,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:46,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 04:46:46,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:46,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:46,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:46,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-29 04:46:46,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:46,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 04:46:46,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:46,268 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:46,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:46,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:46,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-29 04:46:46,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:46,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2020-10-29 04:46:46,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:46,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:46,385 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:46,386 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-29 04:46:46,386 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:46,386 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-29 04:46:46,386 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:46,386 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:46,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:46:46,387 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-29 04:46:46,387 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:46,463 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 139 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-29 04:46:46,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [15605522] [2020-10-29 04:46:46,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:46,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:46:46,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593575764] [2020-10-29 04:46:46,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:46:46,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:46,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:46:46,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:46:46,472 INFO L87 Difference]: Start difference. First operand 3238 states and 4053 transitions. Second operand 7 states. [2020-10-29 04:46:49,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:49,058 INFO L93 Difference]: Finished difference Result 7002 states and 8786 transitions. [2020-10-29 04:46:49,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 04:46:49,059 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 183 [2020-10-29 04:46:49,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:49,076 INFO L225 Difference]: With dead ends: 7002 [2020-10-29 04:46:49,076 INFO L226 Difference]: Without dead ends: 3482 [2020-10-29 04:46:49,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:46:49,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2020-10-29 04:46:49,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3347. [2020-10-29 04:46:49,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3347 states. [2020-10-29 04:46:49,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3347 states to 3347 states and 3974 transitions. [2020-10-29 04:46:49,181 INFO L78 Accepts]: Start accepts. Automaton has 3347 states and 3974 transitions. Word has length 183 [2020-10-29 04:46:49,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:49,181 INFO L481 AbstractCegarLoop]: Abstraction has 3347 states and 3974 transitions. [2020-10-29 04:46:49,181 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:46:49,182 INFO L276 IsEmpty]: Start isEmpty. Operand 3347 states and 3974 transitions. [2020-10-29 04:46:49,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-29 04:46:49,194 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:49,194 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 04:46:49,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-29 04:46:49,195 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:49,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:49,196 INFO L82 PathProgramCache]: Analyzing trace with hash 526276947, now seen corresponding path program 1 times [2020-10-29 04:46:49,196 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:49,196 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1185537393] [2020-10-29 04:46:49,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:49,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:49,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:49,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:50,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:50,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-29 04:46:50,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:46:50,244 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1016 [2020-10-29 04:46:50,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:50,245 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:50,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-29 04:46:50,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:46:50,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 04:46:50,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:50,488 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-29 04:46:50,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:50,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:50,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:50,525 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:50,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:50,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:50,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 04:46:50,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:50,526 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:50,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:50,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:50,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:46:50,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:50,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:50,600 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:50,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:50,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:50,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-29 04:46:50,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:46:50,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-29 04:46:50,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:50,620 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:50,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:50,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:46:50,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-29 04:46:50,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-29 04:46:50,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-29 04:46:50,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:50,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:50,674 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:50,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:46:50,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:50,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 04:46:50,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:50,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:50,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:50,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:46:50,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 04:46:50,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:50,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-29 04:46:50,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:50,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:50,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:50,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 04:46:50,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:50,852 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-29 04:46:50,852 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:50,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-29 04:46:50,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:50,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:50,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-10-29 04:46:50,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:50,884 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:50,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:50,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 04:46:50,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:50,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 04:46:50,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:50,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:50,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:50,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-29 04:46:50,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:50,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:50,978 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 117 proven. 38 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-10-29 04:46:50,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1185537393] [2020-10-29 04:46:50,978 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:50,978 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-29 04:46:50,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077659594] [2020-10-29 04:46:50,979 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-29 04:46:50,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:50,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-29 04:46:50,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-29 04:46:50,980 INFO L87 Difference]: Start difference. First operand 3347 states and 3974 transitions. Second operand 8 states. [2020-10-29 04:46:52,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:52,701 INFO L93 Difference]: Finished difference Result 5612 states and 6621 transitions. [2020-10-29 04:46:52,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-29 04:46:52,702 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 199 [2020-10-29 04:46:52,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:52,716 INFO L225 Difference]: With dead ends: 5612 [2020-10-29 04:46:52,717 INFO L226 Difference]: Without dead ends: 3065 [2020-10-29 04:46:52,723 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=60, Invalid=122, Unknown=0, NotChecked=0, Total=182 [2020-10-29 04:46:52,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3065 states. [2020-10-29 04:46:52,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3065 to 2918. [2020-10-29 04:46:52,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2918 states. [2020-10-29 04:46:52,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2918 states to 2918 states and 3300 transitions. [2020-10-29 04:46:52,819 INFO L78 Accepts]: Start accepts. Automaton has 2918 states and 3300 transitions. Word has length 199 [2020-10-29 04:46:52,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:52,819 INFO L481 AbstractCegarLoop]: Abstraction has 2918 states and 3300 transitions. [2020-10-29 04:46:52,819 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-29 04:46:52,819 INFO L276 IsEmpty]: Start isEmpty. Operand 2918 states and 3300 transitions. [2020-10-29 04:46:52,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-29 04:46:52,829 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:52,829 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-29 04:46:52,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-29 04:46:52,830 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:52,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:52,831 INFO L82 PathProgramCache]: Analyzing trace with hash 947160327, now seen corresponding path program 1 times [2020-10-29 04:46:52,831 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:52,831 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637832497] [2020-10-29 04:46:52,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:52,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:52,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:52,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:54,266 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:54,267 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-29 04:46:54,267 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-29 04:46:54,267 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1403 [2020-10-29 04:46:54,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:54,267 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:54,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-29 04:46:54,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-29 04:46:54,268 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-29 04:46:54,268 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:54,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:54,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:54,401 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:54,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:54,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:54,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:54,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-29 04:46:54,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:54,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:54,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-29 04:46:54,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:54,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:54,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:54,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:54,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:54,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 04:46:54,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:54,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-29 04:46:54,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:54,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:46:54,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-29 04:46:54,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:54,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-29 04:46:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:54,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:54,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:54,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:46:54,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:54,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-29 04:46:54,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:54,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:54,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-29 04:46:54,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:54,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:54,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-29 04:46:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:54,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:54,641 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:54,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 04:46:54,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:54,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 04:46:54,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:54,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:54,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-29 04:46:54,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:54,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:54,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-29 04:46:54,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:54,673 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:54,685 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:54,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 04:46:54,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:54,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 04:46:54,686 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:54,686 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-29 04:46:54,686 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:54,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:54,746 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 130 proven. 66 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2020-10-29 04:46:54,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637832497] [2020-10-29 04:46:54,747 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:54,747 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:46:54,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384123946] [2020-10-29 04:46:54,748 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:46:54,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:54,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:46:54,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:46:54,749 INFO L87 Difference]: Start difference. First operand 2918 states and 3300 transitions. Second operand 7 states. [2020-10-29 04:46:54,890 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-29 04:46:55,865 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 04:46:56,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:56,169 INFO L93 Difference]: Finished difference Result 5959 states and 6735 transitions. [2020-10-29 04:46:56,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-29 04:46:56,169 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-10-29 04:46:56,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:56,192 INFO L225 Difference]: With dead ends: 5959 [2020-10-29 04:46:56,193 INFO L226 Difference]: Without dead ends: 3051 [2020-10-29 04:46:56,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:46:56,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2020-10-29 04:46:56,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 2914. [2020-10-29 04:46:56,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2914 states. [2020-10-29 04:46:56,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2914 states to 2914 states and 3261 transitions. [2020-10-29 04:46:56,283 INFO L78 Accepts]: Start accepts. Automaton has 2914 states and 3261 transitions. Word has length 221 [2020-10-29 04:46:56,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:56,283 INFO L481 AbstractCegarLoop]: Abstraction has 2914 states and 3261 transitions. [2020-10-29 04:46:56,283 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:46:56,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2914 states and 3261 transitions. [2020-10-29 04:46:56,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-29 04:46:56,293 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:56,293 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2020-10-29 04:46:56,293 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-29 04:46:56,294 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:56,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:56,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1803183238, now seen corresponding path program 1 times [2020-10-29 04:46:56,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:56,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396719219] [2020-10-29 04:46:56,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:56,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:56,655 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:56,656 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 282 [2020-10-29 04:46:56,656 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:56,656 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 320 [2020-10-29 04:46:56,656 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:56,656 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:56,656 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-29 04:46:56,657 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 04:46:56,657 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:56,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:56,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:56,789 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:56,790 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:56,790 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:56,790 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-29 04:46:56,790 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:56,790 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:56,790 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:56,791 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:56,791 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:56,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:56,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:56,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:56,842 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-29 04:46:56,842 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:56,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 04:46:56,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:56,843 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:56,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:56,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:56,843 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:56,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:56,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-29 04:46:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:56,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:56,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:56,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-29 04:46:56,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:56,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-29 04:46:56,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:56,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:56,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:56,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:56,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-29 04:46:56,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:56,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-29 04:46:56,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:56,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:56,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:56,933 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:46:56,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:56,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-29 04:46:56,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:56,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:46:56,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 04:46:56,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:56,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2020-10-29 04:46:57,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:57,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:57,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:57,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 04:46:57,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:57,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-29 04:46:57,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:57,031 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:57,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-29 04:46:57,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:57,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:57,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-29 04:46:57,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:57,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:57,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:57,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 04:46:57,082 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:57,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-29 04:46:57,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:57,082 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:57,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:57,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-29 04:46:57,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:57,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:57,165 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 213 proven. 26 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2020-10-29 04:46:57,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396719219] [2020-10-29 04:46:57,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:57,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:46:57,167 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255546993] [2020-10-29 04:46:57,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:46:57,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:57,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:46:57,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:46:57,168 INFO L87 Difference]: Start difference. First operand 2914 states and 3261 transitions. Second operand 7 states. [2020-10-29 04:46:58,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:46:58,785 INFO L93 Difference]: Finished difference Result 5707 states and 6447 transitions. [2020-10-29 04:46:58,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 04:46:58,786 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 262 [2020-10-29 04:46:58,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:46:58,794 INFO L225 Difference]: With dead ends: 5707 [2020-10-29 04:46:58,794 INFO L226 Difference]: Without dead ends: 2797 [2020-10-29 04:46:58,801 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-29 04:46:58,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2797 states. [2020-10-29 04:46:58,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2797 to 1824. [2020-10-29 04:46:58,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1824 states. [2020-10-29 04:46:58,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 1967 transitions. [2020-10-29 04:46:58,853 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 1967 transitions. Word has length 262 [2020-10-29 04:46:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:46:58,853 INFO L481 AbstractCegarLoop]: Abstraction has 1824 states and 1967 transitions. [2020-10-29 04:46:58,853 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:46:58,853 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 1967 transitions. [2020-10-29 04:46:58,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-10-29 04:46:58,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:46:58,861 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:46:58,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-29 04:46:58,862 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:46:58,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:46:58,862 INFO L82 PathProgramCache]: Analyzing trace with hash 619804430, now seen corresponding path program 1 times [2020-10-29 04:46:58,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:46:58,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1060729320] [2020-10-29 04:46:58,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:46:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:58,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:59,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:59,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 322 [2020-10-29 04:46:59,305 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:59,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-10-29 04:46:59,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:59,305 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:59,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-29 04:46:59,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-29 04:46:59,306 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:59,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-29 04:46:59,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:59,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:59,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:59,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-29 04:46:59,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:59,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-29 04:46:59,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:59,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:59,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:59,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:59,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:59,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:59,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-29 04:46:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:59,483 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:59,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:59,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-29 04:46:59,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:59,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-29 04:46:59,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:59,501 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:59,501 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:59,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:59,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:59,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-29 04:46:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:59,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:59,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:59,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-29 04:46:59,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:59,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-29 04:46:59,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:59,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-29 04:46:59,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-29 04:46:59,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-29 04:46:59,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:59,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-29 04:46:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:59,585 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:59,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:59,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-29 04:46:59,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:59,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-29 04:46:59,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:59,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-29 04:46:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-29 04:46:59,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-29 04:46:59,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:59,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-29 04:46:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:59,661 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:59,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:59,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 50 [2020-10-29 04:46:59,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:59,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-29 04:46:59,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:59,675 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:59,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:59,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-29 04:46:59,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:59,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:59,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-10-29 04:46:59,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-29 04:46:59,698 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-29 04:46:59,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-29 04:46:59,712 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-29 04:46:59,712 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-29 04:46:59,712 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-29 04:46:59,712 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-29 04:46:59,712 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-10-29 04:46:59,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-29 04:46:59,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-29 04:46:59,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-29 04:46:59,713 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-29 04:46:59,821 INFO L134 CoverageAnalysis]: Checked inductivity of 552 backedges. 253 proven. 26 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2020-10-29 04:46:59,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1060729320] [2020-10-29 04:46:59,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-29 04:46:59,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-29 04:46:59,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761174648] [2020-10-29 04:46:59,822 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-29 04:46:59,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-29 04:46:59,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-29 04:46:59,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-29 04:46:59,823 INFO L87 Difference]: Start difference. First operand 1824 states and 1967 transitions. Second operand 7 states. [2020-10-29 04:46:59,955 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-10-29 04:47:01,007 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-29 04:47:01,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-29 04:47:01,374 INFO L93 Difference]: Finished difference Result 3652 states and 3960 transitions. [2020-10-29 04:47:01,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-29 04:47:01,374 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 302 [2020-10-29 04:47:01,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-29 04:47:01,379 INFO L225 Difference]: With dead ends: 3652 [2020-10-29 04:47:01,380 INFO L226 Difference]: Without dead ends: 1969 [2020-10-29 04:47:01,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-29 04:47:01,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2020-10-29 04:47:01,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1963. [2020-10-29 04:47:01,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1963 states. [2020-10-29 04:47:01,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1963 states to 1963 states and 2123 transitions. [2020-10-29 04:47:01,427 INFO L78 Accepts]: Start accepts. Automaton has 1963 states and 2123 transitions. Word has length 302 [2020-10-29 04:47:01,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-29 04:47:01,427 INFO L481 AbstractCegarLoop]: Abstraction has 1963 states and 2123 transitions. [2020-10-29 04:47:01,427 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-29 04:47:01,427 INFO L276 IsEmpty]: Start isEmpty. Operand 1963 states and 2123 transitions. [2020-10-29 04:47:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2020-10-29 04:47:01,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-29 04:47:01,435 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-29 04:47:01,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-29 04:47:01,436 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-29 04:47:01,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-29 04:47:01,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1717321801, now seen corresponding path program 1 times [2020-10-29 04:47:01,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-29 04:47:01,437 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958449285] [2020-10-29 04:47:01,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-29 04:47:01,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-29 04:47:01,507 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-29 04:47:01,507 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-29 04:47:01,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-29 04:47:01,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:47:01 BoogieIcfgContainer [2020-10-29 04:47:01,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-29 04:47:01,557 INFO L168 Benchmark]: Toolchain (without parser) took 55492.87 ms. Allocated memory was 151.0 MB in the beginning and 978.3 MB in the end (delta: 827.3 MB). Free memory was 125.3 MB in the beginning and 585.4 MB in the end (delta: -460.1 MB). Peak memory consumption was 367.7 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:01,558 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 125.8 MB. Free memory was 102.2 MB in the beginning and 102.0 MB in the end (delta: 131.2 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-29 04:47:01,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.18 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 131.6 MB in the end (delta: -6.9 MB). Peak memory consumption was 33.5 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:01,559 INFO L168 Benchmark]: Boogie Preprocessor took 198.82 ms. Allocated memory is still 151.0 MB. Free memory was 131.2 MB in the beginning and 126.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:01,560 INFO L168 Benchmark]: RCFGBuilder took 1273.46 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 114.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 54.7 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:01,560 INFO L168 Benchmark]: TraceAbstraction took 53304.22 ms. Allocated memory was 151.0 MB in the beginning and 978.3 MB in the end (delta: 827.3 MB). Free memory was 114.3 MB in the beginning and 585.4 MB in the end (delta: -471.1 MB). Peak memory consumption was 355.7 MB. Max. memory is 8.0 GB. [2020-10-29 04:47:01,563 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 125.8 MB. Free memory was 102.2 MB in the beginning and 102.0 MB in the end (delta: 131.2 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 704.18 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 131.6 MB in the end (delta: -6.9 MB). Peak memory consumption was 33.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 198.82 ms. Allocated memory is still 151.0 MB. Free memory was 131.2 MB in the beginning and 126.4 MB in the end (delta: 4.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1273.46 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 114.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 54.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 53304.22 ms. Allocated memory was 151.0 MB in the beginning and 978.3 MB in the end (delta: 827.3 MB). Free memory was 114.3 MB in the beginning and 585.4 MB in the end (delta: -471.1 MB). Peak memory consumption was 355.7 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 TRUE ((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5)) [L264] a16 = 4 [L265] a20 = 0 [L266] return 25; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND 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 TRUE ((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1))))))))) [L241] a20 = 0 [L242] a21 = 1 [L243] a17 = 0 [L244] a8 = 14 [L245] a16 = 4 [L246] 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 TRUE ((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)) [L394] CALL reach_error() [L4] __assert_fail("0", "Problem01_label20.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 53.1s, OverallIterations: 14, TraceHistogramMax: 7, AutomataDifference: 21.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 341 SDtfs, 6277 SDslu, 359 SDs, 0 SdLazy, 8949 SolverSat, 1411 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 234 GetRequests, 136 SyntacticMatches, 6 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3347occurred in iteration=9, 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, 3267 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 28.8s InterpolantComputationTime, 2408 NumberOfCodeBlocks, 2408 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2080 ConstructedInterpolants, 0 QuantifiedInterpolants, 1196516 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 1894/2063 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...