/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --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 -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label15.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:42:34,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:42:34,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:42:34,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:42:34,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:42:34,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:42:34,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:42:34,061 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:42:34,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:42:34,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:42:34,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:42:34,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:42:34,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:42:34,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:42:34,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:42:34,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:42:34,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:42:34,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:42:34,078 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:42:34,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:42:34,090 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:42:34,090 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:42:34,091 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:42:34,092 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:42:34,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:42:34,104 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:42:34,104 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:42:34,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:42:34,108 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:42:34,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:42:34,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:42:34,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:42:34,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:42:34,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:42:34,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:42:34,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:42:34,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:42:34,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:42:34,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:42:34,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:42:34,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:42:34,124 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 [2020-10-14 00:42:34,163 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:42:34,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:42:34,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:42:34,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:42:34,165 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:42:34,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:42:34,166 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:42:34,167 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:42:34,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:42:34,167 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:42:34,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:42:34,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:42:34,168 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:42:34,169 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:42:34,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:42:34,169 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:42:34,169 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:42:34,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:42:34,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:42:34,170 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:42:34,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:42:34,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:42:34,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:42:34,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:42:34,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:42:34,171 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:42:34,171 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:42:34,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:42:34,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:42:34,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:42:34,455 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:42:34,466 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:42:34,471 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:42:34,473 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:42:34,473 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:42:34,474 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label15.c [2020-10-14 00:42:34,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1aaf2746/718b42f9a1bb4e4b89011633227d6618/FLAG3bdd0a310 [2020-10-14 00:42:35,071 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:42:35,072 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label15.c [2020-10-14 00:42:35,083 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1aaf2746/718b42f9a1bb4e4b89011633227d6618/FLAG3bdd0a310 [2020-10-14 00:42:35,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e1aaf2746/718b42f9a1bb4e4b89011633227d6618 [2020-10-14 00:42:35,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:42:35,365 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:42:35,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:42:35,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:42:35,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:42:35,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:42:35" (1/1) ... [2020-10-14 00:42:35,373 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b4f8bde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:35, skipping insertion in model container [2020-10-14 00:42:35,373 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:42:35" (1/1) ... [2020-10-14 00:42:35,381 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:42:35,439 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:42:35,948 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:42:35,953 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:42:36,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:42:36,135 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:42:36,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:36 WrapperNode [2020-10-14 00:42:36,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:42:36,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:42:36,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:42:36,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:42:36,147 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:36" (1/1) ... [2020-10-14 00:42:36,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:36" (1/1) ... [2020-10-14 00:42:36,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:36" (1/1) ... [2020-10-14 00:42:36,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:36" (1/1) ... [2020-10-14 00:42:36,208 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:36" (1/1) ... [2020-10-14 00:42:36,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:36" (1/1) ... [2020-10-14 00:42:36,239 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:36" (1/1) ... [2020-10-14 00:42:36,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:42:36,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:42:36,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:42:36,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:42:36,261 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:36" (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 [2020-10-14 00:42:36,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:42:36,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:42:36,352 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 00:42:36,352 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:42:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 00:42:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:42:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:42:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 00:42:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:42:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:42:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:42:37,463 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:42:37,464 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 00:42:37,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:42:37 BoogieIcfgContainer [2020-10-14 00:42:37,470 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:42:37,471 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:42:37,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:42:37,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:42:37,475 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:42:35" (1/3) ... [2020-10-14 00:42:37,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b6db2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:42:37, skipping insertion in model container [2020-10-14 00:42:37,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:42:36" (2/3) ... [2020-10-14 00:42:37,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b6db2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:42:37, skipping insertion in model container [2020-10-14 00:42:37,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:42:37" (3/3) ... [2020-10-14 00:42:37,478 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label15.c [2020-10-14 00:42:37,489 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:42:37,497 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:42:37,512 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:42:37,539 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:42:37,539 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:42:37,540 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:42:37,540 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:42:37,540 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:42:37,540 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:42:37,541 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:42:37,541 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:42:37,564 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-14 00:42:37,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-10-14 00:42:37,575 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:42:37,576 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:42:37,576 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:42:37,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:42:37,583 INFO L82 PathProgramCache]: Analyzing trace with hash 78510191, now seen corresponding path program 1 times [2020-10-14 00:42:37,592 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:42:37,593 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1298434556] [2020-10-14 00:42:37,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:42:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:37,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:38,323 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:39,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:39,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-14 00:42:39,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:42:39,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1661 [2020-10-14 00:42:39,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:39,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:39,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:42:39,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:42:39,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-14 00:42:39,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 00:42:39,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:42:39,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:39,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:39,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:39,723 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:42:39,723 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:39,723 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 00:42:39,724 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:39,724 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:39,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:42:39,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:39,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:42:39,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:39,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:42:39,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1298434556] [2020-10-14 00:42:39,775 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:42:39,775 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 00:42:39,776 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622989864] [2020-10-14 00:42:39,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 00:42:39,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:42:39,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 00:42:39,799 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 00:42:39,801 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-10-14 00:42:41,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:42:41,435 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-10-14 00:42:41,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:42:41,437 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 87 [2020-10-14 00:42:41,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:42:41,456 INFO L225 Difference]: With dead ends: 557 [2020-10-14 00:42:41,457 INFO L226 Difference]: Without dead ends: 286 [2020-10-14 00:42:41,465 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:42:41,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-14 00:42:41,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-10-14 00:42:41,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-10-14 00:42:41,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 396 transitions. [2020-10-14 00:42:41,544 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 396 transitions. Word has length 87 [2020-10-14 00:42:41,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:42:41,545 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 396 transitions. [2020-10-14 00:42:41,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 00:42:41,545 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 396 transitions. [2020-10-14 00:42:41,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2020-10-14 00:42:41,550 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:42:41,551 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:42:41,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:42:41,551 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:42:41,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:42:41,552 INFO L82 PathProgramCache]: Analyzing trace with hash -1159559502, now seen corresponding path program 1 times [2020-10-14 00:42:41,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:42:41,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [154784262] [2020-10-14 00:42:41,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:42:41,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:41,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:41,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:43,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:44,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:44,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-14 00:42:44,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:42:44,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2735 [2020-10-14 00:42:44,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:44,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:44,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:42:44,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 00:42:44,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 00:42:44,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:44,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:42:44,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:44,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:44,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:44,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:42:44,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:44,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:42:44,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:44,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:44,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:42:44,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:44,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:42:44,465 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:42:44,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:42:44,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:44,498 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:44,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:44,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 00:42:44,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:44,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:42:44,512 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:44,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:44,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:42:44,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:44,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 00:42:44,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 12 [2020-10-14 00:42:44,558 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:42:44,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [154784262] [2020-10-14 00:42:44,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:42:44,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:42:44,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297092429] [2020-10-14 00:42:44,563 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:42:44,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:42:44,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:42:44,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:42:44,565 INFO L87 Difference]: Start difference. First operand 280 states and 396 transitions. Second operand 5 states. [2020-10-14 00:42:45,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:42:45,873 INFO L93 Difference]: Finished difference Result 834 states and 1201 transitions. [2020-10-14 00:42:45,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:42:45,874 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 96 [2020-10-14 00:42:45,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:42:45,888 INFO L225 Difference]: With dead ends: 834 [2020-10-14 00:42:45,889 INFO L226 Difference]: Without dead ends: 560 [2020-10-14 00:42:45,893 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:42:45,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-14 00:42:45,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 556. [2020-10-14 00:42:45,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-14 00:42:45,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 755 transitions. [2020-10-14 00:42:45,952 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 755 transitions. Word has length 96 [2020-10-14 00:42:45,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:42:45,953 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 755 transitions. [2020-10-14 00:42:45,953 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:42:45,953 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 755 transitions. [2020-10-14 00:42:45,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-14 00:42:45,960 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:42:45,960 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:42:45,961 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:42:45,961 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:42:45,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:42:45,961 INFO L82 PathProgramCache]: Analyzing trace with hash 1752196154, now seen corresponding path program 1 times [2020-10-14 00:42:45,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:42:45,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [225034068] [2020-10-14 00:42:45,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:42:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:45,987 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:46,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:46,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:49,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:50,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:50,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:50,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 110 [2020-10-14 00:42:50,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:42:50,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4817 [2020-10-14 00:42:50,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:50,799 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:50,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:42:50,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 23 [2020-10-14 00:42:50,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 00:42:50,800 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:50,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:42:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:50,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:50,941 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:50,941 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:42:50,941 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:50,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:42:50,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:50,942 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:50,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:42:50,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:50,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:42:50,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:50,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:42:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:50,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:50,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:50,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 00:42:50,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:50,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 00:42:50,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:50,982 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:50,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:42:50,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:50,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 00:42:50,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:51,010 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:42:51,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [225034068] [2020-10-14 00:42:51,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:42:51,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:42:51,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869081563] [2020-10-14 00:42:51,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:42:51,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:42:51,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:42:51,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:42:51,016 INFO L87 Difference]: Start difference. First operand 556 states and 755 transitions. Second operand 5 states. [2020-10-14 00:42:52,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:42:52,346 INFO L93 Difference]: Finished difference Result 1660 states and 2309 transitions. [2020-10-14 00:42:52,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:42:52,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2020-10-14 00:42:52,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:42:52,360 INFO L225 Difference]: With dead ends: 1660 [2020-10-14 00:42:52,360 INFO L226 Difference]: Without dead ends: 1110 [2020-10-14 00:42:52,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:42:52,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2020-10-14 00:42:52,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 836. [2020-10-14 00:42:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 836 states. [2020-10-14 00:42:52,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1117 transitions. [2020-10-14 00:42:52,401 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1117 transitions. Word has length 100 [2020-10-14 00:42:52,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:42:52,402 INFO L479 AbstractCegarLoop]: Abstraction has 836 states and 1117 transitions. [2020-10-14 00:42:52,402 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:42:52,402 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1117 transitions. [2020-10-14 00:42:52,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 00:42:52,410 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:42:52,410 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, 1, 1] [2020-10-14 00:42:52,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 00:42:52,410 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:42:52,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:42:52,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1606303294, now seen corresponding path program 1 times [2020-10-14 00:42:52,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:42:52,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [593020911] [2020-10-14 00:42:52,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:42:52,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:52,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:52,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:52,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:53,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:53,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 00:42:53,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:42:53,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 802 [2020-10-14 00:42:53,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:53,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:42:53,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 00:42:53,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 00:42:53,248 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:53,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:42:53,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:53,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:53,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:53,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:42:53,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:53,342 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:42:53,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:53,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:42:53,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:53,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:42:53,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:53,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:42:53,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:53,366 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:53,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:53,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 00:42:53,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:53,381 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 00:42:53,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:53,382 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:42:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:53,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 00:42:53,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:53,400 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:42:53,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [593020911] [2020-10-14 00:42:53,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:42:53,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:42:53,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110207129] [2020-10-14 00:42:53,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:42:53,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:42:53,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:42:53,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:42:53,403 INFO L87 Difference]: Start difference. First operand 836 states and 1117 transitions. Second operand 5 states. [2020-10-14 00:42:54,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:42:54,597 INFO L93 Difference]: Finished difference Result 2218 states and 3062 transitions. [2020-10-14 00:42:54,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:42:54,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-14 00:42:54,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:42:54,611 INFO L225 Difference]: With dead ends: 2218 [2020-10-14 00:42:54,612 INFO L226 Difference]: Without dead ends: 1388 [2020-10-14 00:42:54,615 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:42:54,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2020-10-14 00:42:54,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1384. [2020-10-14 00:42:54,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1384 states. [2020-10-14 00:42:54,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1824 transitions. [2020-10-14 00:42:54,699 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1824 transitions. Word has length 104 [2020-10-14 00:42:54,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:42:54,700 INFO L479 AbstractCegarLoop]: Abstraction has 1384 states and 1824 transitions. [2020-10-14 00:42:54,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:42:54,700 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1824 transitions. [2020-10-14 00:42:54,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-10-14 00:42:54,707 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:42:54,707 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:42:54,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 00:42:54,708 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:42:54,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:42:54,708 INFO L82 PathProgramCache]: Analyzing trace with hash 1710985768, now seen corresponding path program 1 times [2020-10-14 00:42:54,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:42:54,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440570193] [2020-10-14 00:42:54,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:42:54,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:54,767 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:55,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:55,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 131 [2020-10-14 00:42:55,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:55,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 314 [2020-10-14 00:42:55,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:55,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:42:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:42:55,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 00:42:55,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:55,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:42:55,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:55,189 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:55,197 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:55,198 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:42:55,198 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:55,198 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:42:55,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:55,199 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:55,199 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:42:55,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:42:55,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:42:55,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:55,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:42:55,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:55,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:55,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:42:55,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:42:55,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:42:55,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 78 [2020-10-14 00:42:55,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:42:55,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:42:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:42:55,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:42:55,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 00:42:55,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:42:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:42:55,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440570193] [2020-10-14 00:42:55,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:42:55,402 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 00:42:55,402 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228461310] [2020-10-14 00:42:55,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:42:55,403 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:42:55,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:42:55,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:42:55,403 INFO L87 Difference]: Start difference. First operand 1384 states and 1824 transitions. Second operand 7 states. [2020-10-14 00:42:56,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:42:56,856 INFO L93 Difference]: Finished difference Result 3219 states and 4373 transitions. [2020-10-14 00:42:56,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:42:56,856 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 121 [2020-10-14 00:42:56,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:42:56,867 INFO L225 Difference]: With dead ends: 3219 [2020-10-14 00:42:56,867 INFO L226 Difference]: Without dead ends: 1841 [2020-10-14 00:42:56,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:42:56,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2020-10-14 00:42:56,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1829. [2020-10-14 00:42:56,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1829 states. [2020-10-14 00:42:56,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1829 states to 1829 states and 2418 transitions. [2020-10-14 00:42:56,939 INFO L78 Accepts]: Start accepts. Automaton has 1829 states and 2418 transitions. Word has length 121 [2020-10-14 00:42:56,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:42:56,940 INFO L479 AbstractCegarLoop]: Abstraction has 1829 states and 2418 transitions. [2020-10-14 00:42:56,940 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:42:56,940 INFO L276 IsEmpty]: Start isEmpty. Operand 1829 states and 2418 transitions. [2020-10-14 00:42:56,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-10-14 00:42:56,945 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:42:56,946 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:42:56,946 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 00:42:56,946 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:42:56,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:42:56,946 INFO L82 PathProgramCache]: Analyzing trace with hash 656529388, now seen corresponding path program 1 times [2020-10-14 00:42:56,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:42:56,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1442261207] [2020-10-14 00:42:56,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:42:56,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:42:56,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:57,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:57,231 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:42:57,283 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:01,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:01,197 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 133 [2020-10-14 00:43:01,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:43:01,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4218 [2020-10-14 00:43:01,197 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:01,197 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 46 [2020-10-14 00:43:01,198 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-14 00:43:01,198 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:01,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:01,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:01,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:01,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:01,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:01,307 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:43:01,307 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:01,307 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:01,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:01,308 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:01,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:01,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:01,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:01,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-14 00:43:01,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:01,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 00:43:01,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:01,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-14 00:43:01,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:01,400 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 32 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:43:01,401 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1442261207] [2020-10-14 00:43:01,401 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:01,401 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:43:01,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402651695] [2020-10-14 00:43:01,402 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:43:01,402 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:01,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:43:01,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:43:01,403 INFO L87 Difference]: Start difference. First operand 1829 states and 2418 transitions. Second operand 5 states. [2020-10-14 00:43:02,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:02,480 INFO L93 Difference]: Finished difference Result 4746 states and 6331 transitions. [2020-10-14 00:43:02,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:43:02,480 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-10-14 00:43:02,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:02,498 INFO L225 Difference]: With dead ends: 4746 [2020-10-14 00:43:02,498 INFO L226 Difference]: Without dead ends: 2923 [2020-10-14 00:43:02,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:43:02,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2923 states. [2020-10-14 00:43:02,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2923 to 2651. [2020-10-14 00:43:02,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2651 states. [2020-10-14 00:43:02,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2651 states to 2651 states and 3354 transitions. [2020-10-14 00:43:02,598 INFO L78 Accepts]: Start accepts. Automaton has 2651 states and 3354 transitions. Word has length 123 [2020-10-14 00:43:02,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:02,599 INFO L479 AbstractCegarLoop]: Abstraction has 2651 states and 3354 transitions. [2020-10-14 00:43:02,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:43:02,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2651 states and 3354 transitions. [2020-10-14 00:43:02,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-14 00:43:02,606 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:02,607 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:43:02,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 00:43:02,607 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:02,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:02,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1726746541, now seen corresponding path program 1 times [2020-10-14 00:43:02,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:02,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1170490108] [2020-10-14 00:43:02,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:02,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:02,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:03,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:03,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:43:03,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:03,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 602 [2020-10-14 00:43:03,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:03,262 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:03,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:03,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-14 00:43:03,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 00:43:03,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:03,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:03,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:03,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:03,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:03,411 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:03,411 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:03,411 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:43:03,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:03,411 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:03,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:03,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:03,412 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:03,412 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:03,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:03,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:03,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:03,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:03,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 00:43:03,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:03,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:43:03,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:03,449 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:03,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:03,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:03,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 00:43:03,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:03,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 00:43:03,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:03,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:03,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:03,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:43:03,577 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:03,577 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 100 [2020-10-14 00:43:03,577 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:03,578 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:03,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:03,578 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:03,579 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 00:43:03,579 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:03,688 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 41 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 00:43:03,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1170490108] [2020-10-14 00:43:03,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:03,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:43:03,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559585632] [2020-10-14 00:43:03,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:43:03,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:03,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:43:03,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:43:03,692 INFO L87 Difference]: Start difference. First operand 2651 states and 3354 transitions. Second operand 8 states. [2020-10-14 00:43:05,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:05,512 INFO L93 Difference]: Finished difference Result 5596 states and 7116 transitions. [2020-10-14 00:43:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 00:43:05,513 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2020-10-14 00:43:05,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:05,527 INFO L225 Difference]: With dead ends: 5596 [2020-10-14 00:43:05,527 INFO L226 Difference]: Without dead ends: 2951 [2020-10-14 00:43:05,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:43:05,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2020-10-14 00:43:05,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2935. [2020-10-14 00:43:05,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2935 states. [2020-10-14 00:43:05,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 3625 transitions. [2020-10-14 00:43:05,654 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 3625 transitions. Word has length 129 [2020-10-14 00:43:05,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:05,654 INFO L479 AbstractCegarLoop]: Abstraction has 2935 states and 3625 transitions. [2020-10-14 00:43:05,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:43:05,654 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 3625 transitions. [2020-10-14 00:43:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-14 00:43:05,661 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:05,661 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:43:05,661 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 00:43:05,661 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:05,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:05,662 INFO L82 PathProgramCache]: Analyzing trace with hash -207584188, now seen corresponding path program 1 times [2020-10-14 00:43:05,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:05,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1356241720] [2020-10-14 00:43:05,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:05,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:05,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:05,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:06,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:06,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 155 [2020-10-14 00:43:06,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:06,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 669 [2020-10-14 00:43:06,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:06,368 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:06,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:06,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 00:43:06,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 00:43:06,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:06,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:06,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:06,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:06,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:06,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:06,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:06,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:43:06,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:06,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:06,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:06,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:06,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:06,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:06,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:06,495 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 00:43:06,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:06,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:43:06,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:06,496 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:06,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:06,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:06,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:43:06,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:06,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 00:43:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:06,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:06,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:06,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-14 00:43:06,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:06,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:43:06,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:06,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:06,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:06,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:06,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 00:43:06,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:06,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-10-14 00:43:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:06,574 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:06,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:06,598 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:43:06,598 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:06,598 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 00:43:06,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:06,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:06,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:06,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:43:06,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:06,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:06,649 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 55 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 00:43:06,650 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1356241720] [2020-10-14 00:43:06,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:06,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:43:06,650 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32191228] [2020-10-14 00:43:06,651 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:43:06,651 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:06,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:43:06,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:43:06,652 INFO L87 Difference]: Start difference. First operand 2935 states and 3625 transitions. Second operand 8 states. [2020-10-14 00:43:08,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:08,174 INFO L93 Difference]: Finished difference Result 5845 states and 7536 transitions. [2020-10-14 00:43:08,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 00:43:08,174 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 141 [2020-10-14 00:43:08,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:08,195 INFO L225 Difference]: With dead ends: 5845 [2020-10-14 00:43:08,195 INFO L226 Difference]: Without dead ends: 3051 [2020-10-14 00:43:08,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:43:08,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3051 states. [2020-10-14 00:43:08,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3051 to 2544. [2020-10-14 00:43:08,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2544 states. [2020-10-14 00:43:08,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3178 transitions. [2020-10-14 00:43:08,321 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3178 transitions. Word has length 141 [2020-10-14 00:43:08,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:08,322 INFO L479 AbstractCegarLoop]: Abstraction has 2544 states and 3178 transitions. [2020-10-14 00:43:08,322 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:43:08,322 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3178 transitions. [2020-10-14 00:43:08,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-10-14 00:43:08,328 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:08,329 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, 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] [2020-10-14 00:43:08,329 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 00:43:08,329 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:08,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:08,329 INFO L82 PathProgramCache]: Analyzing trace with hash 1074148571, now seen corresponding path program 1 times [2020-10-14 00:43:08,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:08,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1420954775] [2020-10-14 00:43:08,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:08,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:08,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:08,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:09,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:09,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-14 00:43:09,580 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:43:09,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1216 [2020-10-14 00:43:09,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:09,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 00:43:09,581 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 00:43:09,582 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:09,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:09,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:09,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:09,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:09,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:09,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:09,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:43:09,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:09,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:09,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:09,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:09,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:09,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:09,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:09,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:09,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:09,815 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 00:43:09,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:09,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 00:43:09,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:09,817 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:09,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:09,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:09,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 00:43:09,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:09,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 00:43:09,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:09,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:09,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:09,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:43:09,927 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:09,927 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 00:43:09,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:09,928 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:09,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:09,928 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:09,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 00:43:09,929 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:43:10,109 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 91 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 00:43:10,116 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1420954775] [2020-10-14 00:43:10,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:10,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:43:10,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649410765] [2020-10-14 00:43:10,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:43:10,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:10,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:43:10,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:43:10,119 INFO L87 Difference]: Start difference. First operand 2544 states and 3178 transitions. Second operand 8 states. [2020-10-14 00:43:12,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:12,353 INFO L93 Difference]: Finished difference Result 5301 states and 6982 transitions. [2020-10-14 00:43:12,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:43:12,354 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 154 [2020-10-14 00:43:12,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:12,368 INFO L225 Difference]: With dead ends: 5301 [2020-10-14 00:43:12,369 INFO L226 Difference]: Without dead ends: 2898 [2020-10-14 00:43:12,375 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-14 00:43:12,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2898 states. [2020-10-14 00:43:12,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2898 to 2534. [2020-10-14 00:43:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2534 states. [2020-10-14 00:43:12,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2534 states to 2534 states and 2939 transitions. [2020-10-14 00:43:12,446 INFO L78 Accepts]: Start accepts. Automaton has 2534 states and 2939 transitions. Word has length 154 [2020-10-14 00:43:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:12,446 INFO L479 AbstractCegarLoop]: Abstraction has 2534 states and 2939 transitions. [2020-10-14 00:43:12,446 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:43:12,447 INFO L276 IsEmpty]: Start isEmpty. Operand 2534 states and 2939 transitions. [2020-10-14 00:43:12,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-14 00:43:12,454 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:12,455 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, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:43:12,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 00:43:12,455 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:12,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:12,456 INFO L82 PathProgramCache]: Analyzing trace with hash -512092368, now seen corresponding path program 1 times [2020-10-14 00:43:12,456 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:12,456 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [175918275] [2020-10-14 00:43:12,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:12,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:12,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:12,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-14 00:43:12,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:12,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 346 [2020-10-14 00:43:12,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:12,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-10-14 00:43:12,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 00:43:12,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:12,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:43:12,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:12,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:12,945 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:12,945 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:43:12,945 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:12,946 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 00:43:12,946 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:12,946 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:12,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:12,946 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:12,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:12,947 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:12,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:43:12,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:12,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:12,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:12,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-14 00:43:12,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:12,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:43:12,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:12,990 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:12,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:43:12,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:12,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:43:12,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:13,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-14 00:43:13,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:13,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:13,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:13,095 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 00:43:13,095 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:13,096 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 00:43:13,096 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:13,096 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:13,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:43:13,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:43:13,096 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 00:43:13,097 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:13,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:43:13,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:43:13,153 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:43:13,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:43:13,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:43:13,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:43:13,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 00:43:13,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:43:13,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:43:13,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:43:13,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:43:13,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 00:43:13,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:43:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 206 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-10-14 00:43:13,377 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [175918275] [2020-10-14 00:43:13,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:43:13,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:43:13,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257153387] [2020-10-14 00:43:13,378 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:43:13,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:43:13,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:43:13,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:43:13,379 INFO L87 Difference]: Start difference. First operand 2534 states and 2939 transitions. Second operand 7 states. [2020-10-14 00:43:14,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:43:14,811 INFO L93 Difference]: Finished difference Result 5225 states and 6073 transitions. [2020-10-14 00:43:14,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:43:14,813 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 235 [2020-10-14 00:43:14,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:43:14,826 INFO L225 Difference]: With dead ends: 5225 [2020-10-14 00:43:14,826 INFO L226 Difference]: Without dead ends: 2832 [2020-10-14 00:43:14,832 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:43:14,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2832 states. [2020-10-14 00:43:14,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2832 to 2675. [2020-10-14 00:43:14,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2675 states. [2020-10-14 00:43:14,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2675 states to 2675 states and 3103 transitions. [2020-10-14 00:43:14,898 INFO L78 Accepts]: Start accepts. Automaton has 2675 states and 3103 transitions. Word has length 235 [2020-10-14 00:43:14,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:43:14,898 INFO L479 AbstractCegarLoop]: Abstraction has 2675 states and 3103 transitions. [2020-10-14 00:43:14,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:43:14,898 INFO L276 IsEmpty]: Start isEmpty. Operand 2675 states and 3103 transitions. [2020-10-14 00:43:14,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2020-10-14 00:43:14,907 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:43:14,908 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:43:14,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 00:43:14,908 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:43:14,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:43:14,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1764963115, now seen corresponding path program 1 times [2020-10-14 00:43:14,909 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:43:14,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1256390718] [2020-10-14 00:43:14,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:43:14,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 00:43:14,970 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 00:43:14,970 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 00:43:14,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 00:43:15,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 12:43:15 BoogieIcfgContainer [2020-10-14 00:43:15,033 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 00:43:15,036 INFO L168 Benchmark]: Toolchain (without parser) took 39669.90 ms. Allocated memory was 148.9 MB in the beginning and 725.6 MB in the end (delta: 576.7 MB). Free memory was 103.7 MB in the beginning and 251.8 MB in the end (delta: -148.1 MB). Peak memory consumption was 428.6 MB. Max. memory is 7.1 GB. [2020-10-14 00:43:15,037 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-14 00:43:15,038 INFO L168 Benchmark]: CACSL2BoogieTranslator took 770.59 ms. Allocated memory was 148.9 MB in the beginning and 207.1 MB in the end (delta: 58.2 MB). Free memory was 103.5 MB in the beginning and 173.0 MB in the end (delta: -69.5 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2020-10-14 00:43:15,038 INFO L168 Benchmark]: Boogie Preprocessor took 122.07 ms. Allocated memory is still 207.1 MB. Free memory was 173.0 MB in the beginning and 167.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2020-10-14 00:43:15,039 INFO L168 Benchmark]: RCFGBuilder took 1210.12 ms. Allocated memory was 207.1 MB in the beginning and 233.8 MB in the end (delta: 26.7 MB). Free memory was 167.7 MB in the beginning and 170.8 MB in the end (delta: -3.1 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. [2020-10-14 00:43:15,040 INFO L168 Benchmark]: TraceAbstraction took 37561.65 ms. Allocated memory was 233.8 MB in the beginning and 725.6 MB in the end (delta: 491.8 MB). Free memory was 169.5 MB in the beginning and 251.8 MB in the end (delta: -82.3 MB). Peak memory consumption was 409.5 MB. Max. memory is 7.1 GB. [2020-10-14 00:43:15,044 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 148.9 MB. Free memory was 123.4 MB in the beginning and 123.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 770.59 ms. Allocated memory was 148.9 MB in the beginning and 207.1 MB in the end (delta: 58.2 MB). Free memory was 103.5 MB in the beginning and 173.0 MB in the end (delta: -69.5 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.07 ms. Allocated memory is still 207.1 MB. Free memory was 173.0 MB in the beginning and 167.7 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1210.12 ms. Allocated memory was 207.1 MB in the beginning and 233.8 MB in the end (delta: 26.7 MB). Free memory was 167.7 MB in the beginning and 170.8 MB in the end (delta: -3.1 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 37561.65 ms. Allocated memory was 233.8 MB in the beginning and 725.6 MB in the end (delta: 491.8 MB). Free memory was 169.5 MB in the beginning and 251.8 MB in the end (delta: -82.3 MB). Peak memory consumption was 409.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 419]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int d= 4; [L9] int e= 5; [L10] int f= 6; [L11] int c= 3; [L12] int b= 2; [L15] int u = 21; [L16] int v = 22; [L17] int w = 23; [L18] int x = 24; [L19] int y = 25; [L20] int z = 26; [L22] int a17 = 1; [L23] int a7 = 0; [L24] int a20 = 1; [L25] int a8 = 15; [L26] int a12 = 8; [L27] int a16 = 5; [L28] int a21 = 1; [L580] int output = -1; [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] 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))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] 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))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] 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))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] 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))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] 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))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] 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))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] 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))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] 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))) [L178] 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))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] 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))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] 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))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] 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)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] 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))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] 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))) [L299] 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))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L334] a17 = 0 [L335] a16 = 4 [L336] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] 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))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] 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))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] 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))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] 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))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] 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))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] 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))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] 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))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] 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))) [L178] 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))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] 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))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] 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))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] 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)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L269] a20 = 0 [L270] a17 = 1 [L271] a16 = 6 [L272] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] 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))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] 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))) [L62] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L63] a17 = 0 [L64] return 26; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] 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))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] 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))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] 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))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] 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))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] 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))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] 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))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] 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))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] 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))) [L178] COND TRUE ((((((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)) [L179] a17 = 0 [L180] a16 = 5 [L181] a21 = 1 [L182] a8 = 14 [L183] a7 = 1 [L184] a20 = 1 [L185] return -1; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] 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))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] 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))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] 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))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] 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))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] 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))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] 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))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] 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))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] 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))) [L178] 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))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] 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))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] 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))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] 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)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] 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))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] 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))) [L299] 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))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L337] 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))))) [L345] 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))))) [L353] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L355] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L361] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L363] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L365] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L372] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L377] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L382] 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)))))))) [L391] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L394] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L397] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L400] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L403] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L406] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1))) [L409] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L412] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L415] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))) [L418] COND TRUE ((((((!(a17==1)&&(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)) [L419] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 37.4s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 15.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 294 SDtfs, 3886 SDslu, 343 SDs, 0 SdLazy, 7895 SolverSat, 1015 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 145 GetRequests, 74 SyntacticMatches, 1 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2935occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 10 MinimizatonAttempts, 1616 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 20.1s InterpolantComputationTime, 1538 NumberOfCodeBlocks, 1538 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1280 ConstructedInterpolants, 0 QuantifiedInterpolants, 641098 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 546/564 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...