/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=SHALLOWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf language data_model -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label57.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-0f64333 [2020-10-26 20:36:44,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 20:36:44,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 20:36:44,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 20:36:44,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 20:36:44,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 20:36:44,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 20:36:44,259 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 20:36:44,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 20:36:44,277 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 20:36:44,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 20:36:44,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 20:36:44,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 20:36:44,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 20:36:44,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 20:36:44,293 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 20:36:44,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 20:36:44,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 20:36:44,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 20:36:44,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 20:36:44,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 20:36:44,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 20:36:44,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 20:36:44,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 20:36:44,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 20:36:44,328 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 20:36:44,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 20:36:44,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 20:36:44,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 20:36:44,335 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 20:36:44,335 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 20:36:44,336 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 20:36:44,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 20:36:44,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 20:36:44,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 20:36:44,340 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 20:36:44,341 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 20:36:44,341 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 20:36:44,341 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 20:36:44,342 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 20:36:44,343 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 20:36:44,350 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 [2020-10-26 20:36:44,399 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 20:36:44,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 20:36:44,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 20:36:44,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 20:36:44,404 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 20:36:44,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 20:36:44,405 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 20:36:44,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 20:36:44,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 20:36:44,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 20:36:44,406 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 20:36:44,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 20:36:44,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 20:36:44,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 20:36:44,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 20:36:44,407 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 20:36:44,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 20:36:44,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 20:36:44,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 20:36:44,408 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 20:36:44,408 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 20:36:44,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 20:36:44,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 20:36:44,409 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 20:36:44,409 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 20:36:44,409 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 20:36:44,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 20:36:44,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 20:36:44,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 20:36:44,410 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SHALLOWEST;log-additional-information=true;unknown-allowed=true; [2020-10-26 20:36:44,811 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 20:36:44,838 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 20:36:44,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 20:36:44,843 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 20:36:44,843 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 20:36:44,844 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label57.c [2020-10-26 20:36:44,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/217d5359a/d3336ade65a140c0a9a977cdf61a132a/FLAGc4649bc25 [2020-10-26 20:36:45,616 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 20:36:45,616 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label57.c [2020-10-26 20:36:45,631 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/217d5359a/d3336ade65a140c0a9a977cdf61a132a/FLAGc4649bc25 [2020-10-26 20:36:45,853 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/217d5359a/d3336ade65a140c0a9a977cdf61a132a [2020-10-26 20:36:45,855 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 20:36:45,866 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-26 20:36:45,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 20:36:45,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 20:36:45,874 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 20:36:45,875 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:45" (1/1) ... [2020-10-26 20:36:45,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38b19e4f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:45, skipping insertion in model container [2020-10-26 20:36:45,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 08:36:45" (1/1) ... [2020-10-26 20:36:45,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 20:36:45,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 20:36:46,422 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:36:46,445 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 20:36:46,612 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 20:36:46,688 INFO L208 MainTranslator]: Completed translation [2020-10-26 20:36:46,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:46 WrapperNode [2020-10-26 20:36:46,691 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 20:36:46,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 20:36:46,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 20:36:46,696 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 20:36:46,736 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:46" (1/1) ... [2020-10-26 20:36:46,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:46" (1/1) ... [2020-10-26 20:36:46,763 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:46" (1/1) ... [2020-10-26 20:36:46,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:46" (1/1) ... [2020-10-26 20:36:46,830 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:46" (1/1) ... [2020-10-26 20:36:46,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:46" (1/1) ... [2020-10-26 20:36:46,860 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:46" (1/1) ... [2020-10-26 20:36:46,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 20:36:46,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 20:36:46,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 20:36:46,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 20:36:46,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:46" (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 [2020-10-26 20:36:46,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-26 20:36:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 20:36:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-26 20:36:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-26 20:36:46,949 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-26 20:36:46,949 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-26 20:36:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-26 20:36:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-26 20:36:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-26 20:36:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 20:36:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-26 20:36:46,950 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-26 20:36:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-26 20:36:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-26 20:36:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 20:36:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 20:36:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-26 20:36:46,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-26 20:36:46,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-26 20:36:48,074 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 20:36:48,074 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-26 20:36:48,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:48 BoogieIcfgContainer [2020-10-26 20:36:48,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 20:36:48,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 20:36:48,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 20:36:48,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 20:36:48,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 08:36:45" (1/3) ... [2020-10-26 20:36:48,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6363de66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:48, skipping insertion in model container [2020-10-26 20:36:48,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 08:36:46" (2/3) ... [2020-10-26 20:36:48,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6363de66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 08:36:48, skipping insertion in model container [2020-10-26 20:36:48,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 08:36:48" (3/3) ... [2020-10-26 20:36:48,085 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label57.c [2020-10-26 20:36:48,098 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-26 20:36:48,103 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-26 20:36:48,117 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-26 20:36:48,146 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 20:36:48,146 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 20:36:48,146 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-26 20:36:48,146 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 20:36:48,146 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 20:36:48,147 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 20:36:48,147 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 20:36:48,147 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 20:36:48,169 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-26 20:36:48,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-26 20:36:48,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:48,180 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:48,181 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:48,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:48,187 INFO L82 PathProgramCache]: Analyzing trace with hash -56281429, now seen corresponding path program 1 times [2020-10-26 20:36:48,198 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:48,198 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717860543] [2020-10-26 20:36:48,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:48,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:48,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:49,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:49,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-26 20:36:49,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:49,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1481 [2020-10-26 20:36:49,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:49,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:49,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:49,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-26 20:36:49,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-26 20:36:50,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:50,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:50,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:50,273 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:50,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:50,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:50,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-26 20:36:50,274 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:50,274 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:50,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:50,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:50,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:50,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:36:50,308 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717860543] [2020-10-26 20:36:50,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:36:50,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-26 20:36:50,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956269262] [2020-10-26 20:36:50,317 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:36:50,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:50,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:36:50,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:36:50,335 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-26 20:36:50,486 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-26 20:36:52,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:52,047 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-10-26 20:36:52,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:36:52,052 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2020-10-26 20:36:52,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:52,067 INFO L225 Difference]: With dead ends: 562 [2020-10-26 20:36:52,067 INFO L226 Difference]: Without dead ends: 287 [2020-10-26 20:36:52,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:52,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-10-26 20:36:52,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-10-26 20:36:52,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-10-26 20:36:52,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 397 transitions. [2020-10-26 20:36:52,151 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 397 transitions. Word has length 85 [2020-10-26 20:36:52,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:52,152 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 397 transitions. [2020-10-26 20:36:52,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:36:52,152 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 397 transitions. [2020-10-26 20:36:52,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-10-26 20:36:52,157 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:52,158 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:52,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-26 20:36:52,158 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:52,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:52,159 INFO L82 PathProgramCache]: Analyzing trace with hash 99554545, now seen corresponding path program 1 times [2020-10-26 20:36:52,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:52,160 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827531725] [2020-10-26 20:36:52,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:52,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:52,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:52,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,263 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:53,263 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 107 [2020-10-26 20:36:53,264 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:36:53,264 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1068 [2020-10-26 20:36:53,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:53,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:36:53,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:53,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-10-26 20:36:53,265 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:53,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:53,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:53,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:53,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:53,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:36:53,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:53,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:53,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:53,481 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:53,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:53,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:53,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:53,523 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:53,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:53,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-26 20:36:53,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:53,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-26 20:36:53,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:53,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:53,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:53,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-26 20:36:53,559 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:36:53,644 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-26 20:36:53,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827531725] [2020-10-26 20:36:53,645 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:36:53,645 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:36:53,645 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668383036] [2020-10-26 20:36:53,647 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-26 20:36:53,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:53,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-26 20:36:53,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:36:53,648 INFO L87 Difference]: Start difference. First operand 281 states and 397 transitions. Second operand 6 states. [2020-10-26 20:36:54,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:54,985 INFO L93 Difference]: Finished difference Result 840 states and 1214 transitions. [2020-10-26 20:36:54,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-26 20:36:54,986 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 95 [2020-10-26 20:36:54,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:55,000 INFO L225 Difference]: With dead ends: 840 [2020-10-26 20:36:55,001 INFO L226 Difference]: Without dead ends: 565 [2020-10-26 20:36:55,003 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:55,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-10-26 20:36:55,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 557. [2020-10-26 20:36:55,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 557 states. [2020-10-26 20:36:55,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 763 transitions. [2020-10-26 20:36:55,068 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 763 transitions. Word has length 95 [2020-10-26 20:36:55,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:55,069 INFO L481 AbstractCegarLoop]: Abstraction has 557 states and 763 transitions. [2020-10-26 20:36:55,069 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-26 20:36:55,069 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 763 transitions. [2020-10-26 20:36:55,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-10-26 20:36:55,074 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:55,075 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:55,075 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-26 20:36:55,075 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:55,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:55,076 INFO L82 PathProgramCache]: Analyzing trace with hash 171566714, now seen corresponding path program 1 times [2020-10-26 20:36:55,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:55,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308593731] [2020-10-26 20:36:55,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:55,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:55,372 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:55,981 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:55,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-26 20:36:55,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:36:55,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 875 [2020-10-26 20:36:55,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:55,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:36:55,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:36:55,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-26 20:36:55,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:56,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:36:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:56,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:56,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:56,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:36:56,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:56,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:36:56,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:36:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:36:56,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:36:56,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:56,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:36:56,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:56,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:56,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:36:56,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:36:56,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:36:56,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:36:56,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:36:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:36:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:36:56,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:36:56,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:36:56,283 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 20:36:56,283 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308593731] [2020-10-26 20:36:56,283 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 20:36:56,284 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-26 20:36:56,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501022444] [2020-10-26 20:36:56,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:36:56,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:36:56,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:36:56,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:36:56,291 INFO L87 Difference]: Start difference. First operand 557 states and 763 transitions. Second operand 7 states. [2020-10-26 20:36:57,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:36:57,857 INFO L93 Difference]: Finished difference Result 1263 states and 1750 transitions. [2020-10-26 20:36:57,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:36:57,860 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 102 [2020-10-26 20:36:57,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:36:57,865 INFO L225 Difference]: With dead ends: 1263 [2020-10-26 20:36:57,865 INFO L226 Difference]: Without dead ends: 712 [2020-10-26 20:36:57,867 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:36:57,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2020-10-26 20:36:57,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 704. [2020-10-26 20:36:57,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2020-10-26 20:36:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 938 transitions. [2020-10-26 20:36:57,901 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 938 transitions. Word has length 102 [2020-10-26 20:36:57,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:36:57,901 INFO L481 AbstractCegarLoop]: Abstraction has 704 states and 938 transitions. [2020-10-26 20:36:57,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:36:57,901 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 938 transitions. [2020-10-26 20:36:57,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-10-26 20:36:57,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:36:57,905 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:36:57,905 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-26 20:36:57,905 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:36:57,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:36:57,906 INFO L82 PathProgramCache]: Analyzing trace with hash 361917779, now seen corresponding path program 1 times [2020-10-26 20:36:57,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:36:57,906 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934030972] [2020-10-26 20:36:57,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:36:57,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:36:57,946 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:36:58,712 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:00,358 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:00,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 129 [2020-10-26 20:37:00,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:00,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2424 [2020-10-26 20:37:00,359 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:00,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-10-26 20:37:00,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:00,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:00,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:00,499 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:00,499 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:00,500 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:00,500 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-26 20:37:00,500 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:00,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:00,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:00,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:00,501 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:00,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:00,534 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:00,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:00,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:00,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:00,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:00,601 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-26 20:37:00,601 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:00,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:00,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:00,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:37:00,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:00,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-10-26 20:37:00,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:00,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:00,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:00,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:37:00,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:00,675 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-26 20:37:00,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:00,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-26 20:37:00,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:00,780 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:37:00,780 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934030972] [2020-10-26 20:37:00,781 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:00,781 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:00,781 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027138940] [2020-10-26 20:37:00,782 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:00,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:00,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:00,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:00,784 INFO L87 Difference]: Start difference. First operand 704 states and 938 transitions. Second operand 8 states. [2020-10-26 20:37:02,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:02,469 INFO L93 Difference]: Finished difference Result 2113 states and 2885 transitions. [2020-10-26 20:37:02,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:37:02,471 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 115 [2020-10-26 20:37:02,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:02,482 INFO L225 Difference]: With dead ends: 2113 [2020-10-26 20:37:02,483 INFO L226 Difference]: Without dead ends: 1415 [2020-10-26 20:37:02,486 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:37:02,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2020-10-26 20:37:02,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 855. [2020-10-26 20:37:02,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 855 states. [2020-10-26 20:37:02,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1125 transitions. [2020-10-26 20:37:02,533 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1125 transitions. Word has length 115 [2020-10-26 20:37:02,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:02,533 INFO L481 AbstractCegarLoop]: Abstraction has 855 states and 1125 transitions. [2020-10-26 20:37:02,533 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:02,533 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1125 transitions. [2020-10-26 20:37:02,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-26 20:37:02,537 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:02,537 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:02,537 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-26 20:37:02,537 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:02,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:02,538 INFO L82 PathProgramCache]: Analyzing trace with hash -710358667, now seen corresponding path program 1 times [2020-10-26 20:37:02,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:02,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044436329] [2020-10-26 20:37:02,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:02,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:02,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:02,666 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,813 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,813 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-26 20:37:03,813 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:03,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1248 [2020-10-26 20:37:03,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-26 20:37:03,814 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-26 20:37:03,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:03,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:03,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:03,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:03,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:03,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-26 20:37:03,928 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:03,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:03,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:03,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:03,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:03,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:03,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:03,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:03,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:03,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:03,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-26 20:37:03,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:03,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:03,967 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:03,986 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:03,986 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:03,987 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:03,987 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:37:03,987 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:03,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:03,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:03,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:37:03,988 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:04,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-26 20:37:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:04,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:04,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:04,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:37:04,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:04,023 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:37:04,023 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:37:04,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:04,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:04,047 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 38 proven. 12 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-26 20:37:04,047 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044436329] [2020-10-26 20:37:04,048 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:04,048 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:04,048 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174377543] [2020-10-26 20:37:04,049 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:04,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:04,049 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:04,049 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:04,050 INFO L87 Difference]: Start difference. First operand 855 states and 1125 transitions. Second operand 7 states. [2020-10-26 20:37:05,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:05,704 INFO L93 Difference]: Finished difference Result 2505 states and 3804 transitions. [2020-10-26 20:37:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:05,705 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 123 [2020-10-26 20:37:05,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:05,722 INFO L225 Difference]: With dead ends: 2505 [2020-10-26 20:37:05,722 INFO L226 Difference]: Without dead ends: 1656 [2020-10-26 20:37:05,726 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:05,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1656 states. [2020-10-26 20:37:05,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1656 to 1554. [2020-10-26 20:37:05,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1554 states. [2020-10-26 20:37:05,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1554 states to 1554 states and 2024 transitions. [2020-10-26 20:37:05,831 INFO L78 Accepts]: Start accepts. Automaton has 1554 states and 2024 transitions. Word has length 123 [2020-10-26 20:37:05,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:05,831 INFO L481 AbstractCegarLoop]: Abstraction has 1554 states and 2024 transitions. [2020-10-26 20:37:05,832 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:05,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1554 states and 2024 transitions. [2020-10-26 20:37:05,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-10-26 20:37:05,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:05,837 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:05,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-26 20:37:05,838 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:05,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:05,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1539377610, now seen corresponding path program 1 times [2020-10-26 20:37:05,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:05,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [239092959] [2020-10-26 20:37:05,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:05,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:05,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:05,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:06,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:07,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:07,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:09,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:09,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 142 [2020-10-26 20:37:09,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-26 20:37:09,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3654 [2020-10-26 20:37:09,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:09,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:09,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:09,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-26 20:37:09,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:09,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:09,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:09,664 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:09,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:09,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:09,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:09,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-26 20:37:09,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:09,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:09,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:09,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:09,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:09,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:09,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:09,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:09,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:09,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:09,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:37:09,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:09,753 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:37:09,753 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:09,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:09,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:09,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:37:09,754 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:09,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:37:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:09,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:09,836 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:09,836 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:09,836 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:09,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-26 20:37:09,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:09,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:09,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:09,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-26 20:37:09,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:09,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-10-26 20:37:09,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:09,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:09,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:09,890 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-26 20:37:09,890 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:09,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-26 20:37:09,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:09,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:09,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 15 [2020-10-26 20:37:09,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:09,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:09,957 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 41 proven. 16 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-26 20:37:09,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [239092959] [2020-10-26 20:37:09,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:09,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:37:09,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394472711] [2020-10-26 20:37:09,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:09,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:09,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:09,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:09,961 INFO L87 Difference]: Start difference. First operand 1554 states and 2024 transitions. Second operand 8 states. [2020-10-26 20:37:11,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:11,372 INFO L93 Difference]: Finished difference Result 3664 states and 4932 transitions. [2020-10-26 20:37:11,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-26 20:37:11,373 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 126 [2020-10-26 20:37:11,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:11,386 INFO L225 Difference]: With dead ends: 3664 [2020-10-26 20:37:11,386 INFO L226 Difference]: Without dead ends: 2116 [2020-10-26 20:37:11,391 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2020-10-26 20:37:11,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2116 states. [2020-10-26 20:37:11,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2116 to 1969. [2020-10-26 20:37:11,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1969 states. [2020-10-26 20:37:11,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2613 transitions. [2020-10-26 20:37:11,480 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2613 transitions. Word has length 126 [2020-10-26 20:37:11,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:11,480 INFO L481 AbstractCegarLoop]: Abstraction has 1969 states and 2613 transitions. [2020-10-26 20:37:11,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:11,481 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2613 transitions. [2020-10-26 20:37:11,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-10-26 20:37:11,489 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:11,489 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:11,490 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-26 20:37:11,490 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:11,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:11,490 INFO L82 PathProgramCache]: Analyzing trace with hash -879841678, now seen corresponding path program 1 times [2020-10-26 20:37:11,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:11,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1201964655] [2020-10-26 20:37:11,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:11,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:11,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:11,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:12,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:12,770 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-26 20:37:15,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:15,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3497 [2020-10-26 20:37:15,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-26 20:37:15,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:15,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 39 [2020-10-26 20:37:15,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:15,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:15,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:15,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:15,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:15,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:15,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:15,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,237 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:37:15,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:15,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-26 20:37:15,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:15,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:37:15,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-26 20:37:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:15,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,304 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:15,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:37:15,305 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:37:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2020-10-26 20:37:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:15,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:15,350 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:15,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:15,350 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:15,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-26 20:37:15,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:15,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:15,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:37:15,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:15,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:15,424 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 82 proven. 38 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-10-26 20:37:15,425 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1201964655] [2020-10-26 20:37:15,425 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:15,425 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:15,425 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986847818] [2020-10-26 20:37:15,426 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:15,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:15,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:15,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:15,427 INFO L87 Difference]: Start difference. First operand 1969 states and 2613 transitions. Second operand 7 states. [2020-10-26 20:37:16,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:16,899 INFO L93 Difference]: Finished difference Result 4083 states and 5427 transitions. [2020-10-26 20:37:16,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-26 20:37:16,900 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-10-26 20:37:16,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:16,912 INFO L225 Difference]: With dead ends: 4083 [2020-10-26 20:37:16,913 INFO L226 Difference]: Without dead ends: 2120 [2020-10-26 20:37:16,918 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:16,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2120 states. [2020-10-26 20:37:16,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2120 to 2112. [2020-10-26 20:37:16,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2112 states. [2020-10-26 20:37:16,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2112 states to 2112 states and 2775 transitions. [2020-10-26 20:37:16,993 INFO L78 Accepts]: Start accepts. Automaton has 2112 states and 2775 transitions. Word has length 176 [2020-10-26 20:37:16,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:16,994 INFO L481 AbstractCegarLoop]: Abstraction has 2112 states and 2775 transitions. [2020-10-26 20:37:16,994 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:16,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2112 states and 2775 transitions. [2020-10-26 20:37:17,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-26 20:37:17,000 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:17,001 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, 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] [2020-10-26 20:37:17,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-26 20:37:17,001 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:17,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:17,002 INFO L82 PathProgramCache]: Analyzing trace with hash -1693704081, now seen corresponding path program 1 times [2020-10-26 20:37:17,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:17,002 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [450702826] [2020-10-26 20:37:17,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:17,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:17,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:17,084 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:17,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:17,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:19,118 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:19,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:22,066 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-26 20:37:22,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-26 20:37:22,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-26 20:37:22,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:22,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:22,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:22,067 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-26 20:37:22,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:22,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:22,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:22,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:22,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:22,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:22,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:37:22,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:22,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:22,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:22,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:22,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-26 20:37:22,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:22,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:22,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-26 20:37:22,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:22,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:22,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:22,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:22,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:22,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-26 20:37:22,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:22,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-26 20:37:22,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:22,263 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:22,307 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:37:22,307 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:22,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-26 20:37:22,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:22,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:22,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:22,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-26 20:37:22,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:22,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-26 20:37:22,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:22,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:22,394 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-26 20:37:22,394 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:22,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:37:22,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:22,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:22,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 13 [2020-10-26 20:37:22,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:22,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:22,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2020-10-26 20:37:22,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:22,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:22,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:22,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-26 20:37:22,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:22,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-26 20:37:22,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:22,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:22,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 41 [2020-10-26 20:37:22,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:22,433 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:22,519 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 99 proven. 56 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-10-26 20:37:22,520 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [450702826] [2020-10-26 20:37:22,520 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:22,520 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-26 20:37:22,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418045898] [2020-10-26 20:37:22,521 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:22,521 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:22,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:22,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:22,522 INFO L87 Difference]: Start difference. First operand 2112 states and 2775 transitions. Second operand 8 states. [2020-10-26 20:37:23,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:23,930 INFO L93 Difference]: Finished difference Result 4365 states and 5777 transitions. [2020-10-26 20:37:23,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:23,930 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 187 [2020-10-26 20:37:23,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:23,945 INFO L225 Difference]: With dead ends: 4365 [2020-10-26 20:37:23,945 INFO L226 Difference]: Without dead ends: 2394 [2020-10-26 20:37:23,951 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:37:23,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2394 states. [2020-10-26 20:37:24,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2394 to 2392. [2020-10-26 20:37:24,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2392 states. [2020-10-26 20:37:24,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3109 transitions. [2020-10-26 20:37:24,060 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3109 transitions. Word has length 187 [2020-10-26 20:37:24,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:24,060 INFO L481 AbstractCegarLoop]: Abstraction has 2392 states and 3109 transitions. [2020-10-26 20:37:24,060 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:24,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3109 transitions. [2020-10-26 20:37:24,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-26 20:37:24,068 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:24,068 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:24,068 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-26 20:37:24,068 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:24,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:24,069 INFO L82 PathProgramCache]: Analyzing trace with hash 2000550025, now seen corresponding path program 1 times [2020-10-26 20:37:24,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:24,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27113880] [2020-10-26 20:37:24,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:24,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:24,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:24,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:24,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-10-26 20:37:24,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:24,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 328 [2020-10-26 20:37:24,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:37:24,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 20:37:24,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:24,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:24,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:24,578 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:24,586 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:24,586 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:24,586 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:24,586 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-26 20:37:24,587 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:24,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:24,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:24,587 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:24,587 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:24,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:24,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:24,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:24,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:24,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:24,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:24,609 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:37:24,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:24,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:24,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:24,610 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:24,610 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:24,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:24,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:24,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:24,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:24,634 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:37:24,634 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:24,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:37:24,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:24,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:24,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:24,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:24,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:24,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:37:24,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:24,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:24,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:24,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:37:24,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:24,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-26 20:37:24,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:24,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:37:24,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:24,792 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 3 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-10-26 20:37:24,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27113880] [2020-10-26 20:37:24,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:24,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:37:24,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120900948] [2020-10-26 20:37:24,793 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:37:24,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:24,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:37:24,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:37:24,794 INFO L87 Difference]: Start difference. First operand 2392 states and 3109 transitions. Second operand 5 states. [2020-10-26 20:37:25,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:25,969 INFO L93 Difference]: Finished difference Result 5054 states and 6617 transitions. [2020-10-26 20:37:25,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:37:25,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2020-10-26 20:37:25,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:25,985 INFO L225 Difference]: With dead ends: 5054 [2020-10-26 20:37:25,985 INFO L226 Difference]: Without dead ends: 2650 [2020-10-26 20:37:25,992 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:37:25,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2650 states. [2020-10-26 20:37:26,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2650 to 2648. [2020-10-26 20:37:26,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2648 states. [2020-10-26 20:37:26,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2648 states to 2648 states and 3102 transitions. [2020-10-26 20:37:26,082 INFO L78 Accepts]: Start accepts. Automaton has 2648 states and 3102 transitions. Word has length 201 [2020-10-26 20:37:26,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:26,082 INFO L481 AbstractCegarLoop]: Abstraction has 2648 states and 3102 transitions. [2020-10-26 20:37:26,082 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:37:26,082 INFO L276 IsEmpty]: Start isEmpty. Operand 2648 states and 3102 transitions. [2020-10-26 20:37:26,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-10-26 20:37:26,091 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:26,092 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:26,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-26 20:37:26,092 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:26,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:26,093 INFO L82 PathProgramCache]: Analyzing trace with hash -84577665, now seen corresponding path program 1 times [2020-10-26 20:37:26,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:26,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1053188188] [2020-10-26 20:37:26,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:26,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:26,377 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:26,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:27,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:28,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:28,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 235 [2020-10-26 20:37:28,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-26 20:37:28,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2206 [2020-10-26 20:37:28,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:28,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-26 20:37:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-26 20:37:28,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 144 [2020-10-26 20:37:28,361 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:28,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:28,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:28,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:28,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:28,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:28,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:28,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-26 20:37:28,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:28,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:28,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:28,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-26 20:37:28,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:28,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:28,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:28,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:28,581 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:28,676 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:28,676 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:37:28,676 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:28,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 137 [2020-10-26 20:37:28,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:28,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:28,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:28,677 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-26 20:37:28,677 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:28,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:37:28,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:28,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:28,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:28,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 20:37:28,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:28,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 103 [2020-10-26 20:37:28,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:28,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:28,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:28,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 20:37:28,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:29,086 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 131 proven. 58 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-26 20:37:29,087 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1053188188] [2020-10-26 20:37:29,087 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:29,087 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:29,088 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955655696] [2020-10-26 20:37:29,088 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-26 20:37:29,088 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:29,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-26 20:37:29,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-26 20:37:29,089 INFO L87 Difference]: Start difference. First operand 2648 states and 3102 transitions. Second operand 8 states. [2020-10-26 20:37:30,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:30,495 INFO L93 Difference]: Finished difference Result 5310 states and 6273 transitions. [2020-10-26 20:37:30,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-26 20:37:30,495 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 221 [2020-10-26 20:37:30,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:30,510 INFO L225 Difference]: With dead ends: 5310 [2020-10-26 20:37:30,511 INFO L226 Difference]: Without dead ends: 2803 [2020-10-26 20:37:30,517 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-10-26 20:37:30,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2020-10-26 20:37:30,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2517. [2020-10-26 20:37:30,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2517 states. [2020-10-26 20:37:30,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 2925 transitions. [2020-10-26 20:37:30,600 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 2925 transitions. Word has length 221 [2020-10-26 20:37:30,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:30,601 INFO L481 AbstractCegarLoop]: Abstraction has 2517 states and 2925 transitions. [2020-10-26 20:37:30,601 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-26 20:37:30,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 2925 transitions. [2020-10-26 20:37:30,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-10-26 20:37:30,608 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:30,609 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:30,609 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-26 20:37:30,609 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:30,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:30,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1129132314, now seen corresponding path program 1 times [2020-10-26 20:37:30,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:30,610 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786777842] [2020-10-26 20:37:30,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:30,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:30,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:30,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:31,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:32,135 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:32,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-26 20:37:32,136 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-26 20:37:32,136 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1473 [2020-10-26 20:37:32,136 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:32,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:32,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-26 20:37:32,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-26 20:37:32,137 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:32,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:32,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:32,253 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:32,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:32,257 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:32,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:32,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-26 20:37:32,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:32,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:32,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:32,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:32,258 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:32,275 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:32,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:32,298 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:32,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-26 20:37:32,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:32,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-26 20:37:32,299 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:32,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:32,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:32,299 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:32,300 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:32,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-26 20:37:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:32,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:32,380 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:32,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-26 20:37:32,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:32,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-26 20:37:32,381 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:32,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:32,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:32,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-26 20:37:32,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:32,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-26 20:37:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:32,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:32,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:32,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 20:37:32,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:32,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-26 20:37:32,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:32,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:32,513 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:32,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 20:37:32,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:32,637 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 211 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-10-26 20:37:32,638 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786777842] [2020-10-26 20:37:32,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:32,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:32,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876015663] [2020-10-26 20:37:32,638 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:32,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:32,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:32,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:32,639 INFO L87 Difference]: Start difference. First operand 2517 states and 2925 transitions. Second operand 7 states. [2020-10-26 20:37:34,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:34,168 INFO L93 Difference]: Finished difference Result 5191 states and 6116 transitions. [2020-10-26 20:37:34,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:34,169 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 232 [2020-10-26 20:37:34,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:34,184 INFO L225 Difference]: With dead ends: 5191 [2020-10-26 20:37:34,184 INFO L226 Difference]: Without dead ends: 2815 [2020-10-26 20:37:34,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-26 20:37:34,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2815 states. [2020-10-26 20:37:34,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2815 to 2652. [2020-10-26 20:37:34,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2652 states. [2020-10-26 20:37:34,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2652 states to 2652 states and 3057 transitions. [2020-10-26 20:37:34,272 INFO L78 Accepts]: Start accepts. Automaton has 2652 states and 3057 transitions. Word has length 232 [2020-10-26 20:37:34,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:34,272 INFO L481 AbstractCegarLoop]: Abstraction has 2652 states and 3057 transitions. [2020-10-26 20:37:34,272 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:34,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2652 states and 3057 transitions. [2020-10-26 20:37:34,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2020-10-26 20:37:34,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:34,282 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:34,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-26 20:37:34,282 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:34,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:34,283 INFO L82 PathProgramCache]: Analyzing trace with hash -1965483188, now seen corresponding path program 1 times [2020-10-26 20:37:34,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:34,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [517650708] [2020-10-26 20:37:34,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:34,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:34,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:34,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 292 [2020-10-26 20:37:35,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-26 20:37:35,346 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1004 [2020-10-26 20:37:35,346 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-26 20:37:35,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-26 20:37:35,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:35,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:35,476 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,488 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,488 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:35,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:35,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-26 20:37:35,489 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:35,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:35,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:35,489 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:35,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:35,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-26 20:37:35,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:35,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-26 20:37:35,510 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:35,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:35,511 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-26 20:37:35,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:35,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,532 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,532 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-26 20:37:35,532 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:35,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-26 20:37:35,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:35,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:35,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:35,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-26 20:37:35,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:35,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,611 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,612 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-26 20:37:35,612 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:35,612 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-26 20:37:35,612 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:35,612 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-26 20:37:35,613 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-26 20:37:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:35,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:35,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:35,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 20:37:35,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:35,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-26 20:37:35,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-26 20:37:35,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-26 20:37:35,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:35,884 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 294 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-26 20:37:35,885 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [517650708] [2020-10-26 20:37:35,885 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:35,885 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-26 20:37:35,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684698430] [2020-10-26 20:37:35,886 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-26 20:37:35,886 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:35,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-26 20:37:35,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-26 20:37:35,887 INFO L87 Difference]: Start difference. First operand 2652 states and 3057 transitions. Second operand 7 states. [2020-10-26 20:37:37,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:37,472 INFO L93 Difference]: Finished difference Result 5179 states and 6001 transitions. [2020-10-26 20:37:37,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-26 20:37:37,473 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 274 [2020-10-26 20:37:37,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:37,484 INFO L225 Difference]: With dead ends: 5179 [2020-10-26 20:37:37,484 INFO L226 Difference]: Without dead ends: 2668 [2020-10-26 20:37:37,489 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-26 20:37:37,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2020-10-26 20:37:37,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2517. [2020-10-26 20:37:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2517 states. [2020-10-26 20:37:37,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2517 states to 2517 states and 2869 transitions. [2020-10-26 20:37:37,567 INFO L78 Accepts]: Start accepts. Automaton has 2517 states and 2869 transitions. Word has length 274 [2020-10-26 20:37:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:37,568 INFO L481 AbstractCegarLoop]: Abstraction has 2517 states and 2869 transitions. [2020-10-26 20:37:37,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-26 20:37:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 2517 states and 2869 transitions. [2020-10-26 20:37:37,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2020-10-26 20:37:37,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:37,577 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:37,577 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-26 20:37:37,577 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:37,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:37,578 INFO L82 PathProgramCache]: Analyzing trace with hash 1464633355, now seen corresponding path program 1 times [2020-10-26 20:37:37,578 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:37,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [290905010] [2020-10-26 20:37:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:37,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:38,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:38,083 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 303 [2020-10-26 20:37:38,083 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 438 [2020-10-26 20:37:38,083 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-26 20:37:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 216 [2020-10-26 20:37:38,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-10-26 20:37:38,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:38,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-26 20:37:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:38,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:38,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:38,231 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-26 20:37:38,231 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:38,231 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-26 20:37:38,231 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:38,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:38,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:38,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:38,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:38,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-26 20:37:38,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:38,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:38,272 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:38,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-26 20:37:38,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:38,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-26 20:37:38,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:38,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:38,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:38,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:38,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:38,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-26 20:37:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:38,294 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:38,309 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:38,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-26 20:37:38,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:38,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-26 20:37:38,310 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:38,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:38,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:38,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:38,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:38,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-26 20:37:38,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:38,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:38,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:38,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-26 20:37:38,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:38,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-26 20:37:38,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-26 20:37:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:38,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-26 20:37:38,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:38,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-26 20:37:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 20:37:38,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-26 20:37:38,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-26 20:37:38,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-26 20:37:38,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-26 20:37:38,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-26 20:37:38,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SHALLOWEST [2020-10-26 20:37:38,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-26 20:37:38,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-26 20:37:38,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-26 20:37:38,414 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-26 20:37:38,532 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 193 proven. 4 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2020-10-26 20:37:38,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [290905010] [2020-10-26 20:37:38,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-26 20:37:38,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-26 20:37:38,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573456220] [2020-10-26 20:37:38,533 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-26 20:37:38,533 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-26 20:37:38,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-26 20:37:38,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-26 20:37:38,534 INFO L87 Difference]: Start difference. First operand 2517 states and 2869 transitions. Second operand 5 states. [2020-10-26 20:37:39,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 20:37:39,640 INFO L93 Difference]: Finished difference Result 5437 states and 6242 transitions. [2020-10-26 20:37:39,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-26 20:37:39,648 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 285 [2020-10-26 20:37:39,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-26 20:37:39,659 INFO L225 Difference]: With dead ends: 5437 [2020-10-26 20:37:39,659 INFO L226 Difference]: Without dead ends: 2511 [2020-10-26 20:37:39,665 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-26 20:37:39,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2511 states. [2020-10-26 20:37:39,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2511 to 2507. [2020-10-26 20:37:39,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2507 states. [2020-10-26 20:37:39,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2507 states to 2507 states and 2830 transitions. [2020-10-26 20:37:39,732 INFO L78 Accepts]: Start accepts. Automaton has 2507 states and 2830 transitions. Word has length 285 [2020-10-26 20:37:39,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-26 20:37:39,732 INFO L481 AbstractCegarLoop]: Abstraction has 2507 states and 2830 transitions. [2020-10-26 20:37:39,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-26 20:37:39,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2507 states and 2830 transitions. [2020-10-26 20:37:39,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2020-10-26 20:37:39,741 INFO L414 BasicCegarLoop]: Found error trace [2020-10-26 20:37:39,741 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 20:37:39,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-26 20:37:39,742 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-26 20:37:39,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 20:37:39,742 INFO L82 PathProgramCache]: Analyzing trace with hash -586329355, now seen corresponding path program 1 times [2020-10-26 20:37:39,742 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-26 20:37:39,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135317806] [2020-10-26 20:37:39,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 20:37:39,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 20:37:39,815 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-26 20:37:39,815 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-26 20:37:39,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-26 20:37:39,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 08:37:39 BoogieIcfgContainer [2020-10-26 20:37:39,893 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 20:37:39,896 INFO L168 Benchmark]: Toolchain (without parser) took 54037.25 ms. Allocated memory was 155.2 MB in the beginning and 986.7 MB in the end (delta: 831.5 MB). Free memory was 129.6 MB in the beginning and 630.3 MB in the end (delta: -500.7 MB). Peak memory consumption was 331.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:39,896 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-26 20:37:39,897 INFO L168 Benchmark]: CACSL2BoogieTranslator took 821.83 ms. Allocated memory is still 155.2 MB. Free memory was 129.0 MB in the beginning and 136.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:39,898 INFO L168 Benchmark]: Boogie Preprocessor took 176.61 ms. Allocated memory is still 155.2 MB. Free memory was 136.3 MB in the beginning and 131.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:39,902 INFO L168 Benchmark]: RCFGBuilder took 1204.04 ms. Allocated memory was 155.2 MB in the beginning and 207.6 MB in the end (delta: 52.4 MB). Free memory was 131.0 MB in the beginning and 164.4 MB in the end (delta: -33.4 MB). Peak memory consumption was 84.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:39,903 INFO L168 Benchmark]: TraceAbstraction took 51814.73 ms. Allocated memory was 207.6 MB in the beginning and 986.7 MB in the end (delta: 779.1 MB). Free memory was 163.9 MB in the beginning and 630.3 MB in the end (delta: -466.5 MB). Peak memory consumption was 312.1 MB. Max. memory is 8.0 GB. [2020-10-26 20:37:39,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 155.2 MB. Free memory is still 126.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 821.83 ms. Allocated memory is still 155.2 MB. Free memory was 129.0 MB in the beginning and 136.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 32.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 176.61 ms. Allocated memory is still 155.2 MB. Free memory was 136.3 MB in the beginning and 131.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1204.04 ms. Allocated memory was 155.2 MB in the beginning and 207.6 MB in the end (delta: 52.4 MB). Free memory was 131.0 MB in the beginning and 164.4 MB in the end (delta: -33.4 MB). Peak memory consumption was 84.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 51814.73 ms. Allocated memory was 207.6 MB in the beginning and 986.7 MB in the end (delta: 779.1 MB). Free memory was 163.9 MB in the beginning and 630.3 MB in the end (delta: -466.5 MB). Peak memory consumption was 312.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] int a= 1; [L10] int d= 4; [L11] int e= 5; [L12] int f= 6; [L13] int c= 3; [L14] int b= 2; [L17] int u = 21; [L18] int v = 22; [L19] int w = 23; [L20] int x = 24; [L21] int y = 25; [L22] int z = 26; [L24] int a17 = 1; [L25] int a7 = 0; [L26] int a20 = 1; [L27] int a8 = 15; [L28] int a12 = 8; [L29] int a16 = 5; [L30] int a21 = 1; [L582] int output = -1; [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L336] a17 = 0 [L337] a16 = 4 [L338] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L271] a20 = 0 [L272] a17 = 1 [L273] a16 = 6 [L274] return 21; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L65] a17 = 0 [L66] return 26; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND TRUE ((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))) [L75] a7 = 1 [L76] a17 = 1 [L77] a21 = 0 [L78] a20 = 1 [L79] a8 = 13 [L80] a16 = 5 [L81] return 26; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL, EXPR calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L339] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L347] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L355] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L357] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L363] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L365] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L367] COND TRUE ((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5)) [L368] a21 = 1 [L369] a7 = 0 [L370] a17 = 0 [L371] a8 = 14 [L372] a20 = 0 [L373] return -1; [L593] RET, EXPR calculate_output(input) [L593] output = calculate_output(input) [L585] COND TRUE 1 [L588] int input; [L589] input = __VERIFIER_nondet_int() [L590] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L593] CALL calculate_output(input) [L33] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L37] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L45] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L51] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L56] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L64] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L67] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L74] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L82] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L86] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L94] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L99] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L104] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L110] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L116] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L121] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L126] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L131] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L138] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L142] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L146] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L150] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L154] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L162] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L167] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L175] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L180] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L188] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L191] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L196] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L199] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L205] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L210] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L216] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L220] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L225] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L233] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L240] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L247] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L252] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L258] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L263] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L267] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L270] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L275] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L280] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L288] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L294] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L301] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L308] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L314] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L318] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L320] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L326] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L331] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L335] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L339] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L347] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L355] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L357] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L363] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L365] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L367] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L374] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L379] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L384] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L393] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L396] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L399] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L402] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L405] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L408] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L411] COND TRUE ((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)) [L412] CALL reach_error() [L4] __assert_fail("0", "Problem01_label57.c", 4, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 51.6s, OverallIterations: 14, TraceHistogramMax: 6, AutomataDifference: 19.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 369 SDtfs, 4850 SDslu, 462 SDs, 0 SdLazy, 9767 SolverSat, 1401 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 229 GetRequests, 117 SyntacticMatches, 3 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2652occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 1447 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 29.6s InterpolantComputationTime, 2519 NumberOfCodeBlocks, 2519 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2209 ConstructedInterpolants, 0 QuantifiedInterpolants, 1718526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 1676/1876 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...