/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.2 --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_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 19:03:51,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 19:03:51,832 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 19:03:51,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 19:03:51,873 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 19:03:51,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 19:03:51,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 19:03:51,885 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 19:03:51,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 19:03:51,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 19:03:51,891 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 19:03:51,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 19:03:51,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 19:03:51,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 19:03:51,898 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 19:03:51,900 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 19:03:51,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 19:03:51,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 19:03:51,905 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 19:03:51,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 19:03:51,914 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 19:03:51,915 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 19:03:51,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 19:03:51,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 19:03:51,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 19:03:51,931 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 19:03:51,931 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 19:03:51,932 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 19:03:51,932 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 19:03:51,933 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 19:03:51,933 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 19:03:51,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 19:03:51,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 19:03:51,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 19:03:51,943 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 19:03:51,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 19:03:51,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 19:03:51,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 19:03:51,944 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 19:03:51,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 19:03:51,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 19:03:51,950 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 19:03:51,985 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 19:03:51,986 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 19:03:51,988 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 19:03:51,988 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 19:03:51,988 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 19:03:51,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 19:03:51,989 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 19:03:51,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 19:03:51,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 19:03:51,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 19:03:51,990 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 19:03:51,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 19:03:51,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 19:03:51,991 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 19:03:51,991 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 19:03:51,992 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 19:03:51,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 19:03:51,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 19:03:51,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 19:03:51,992 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 19:03:51,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 19:03:51,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 19:03:51,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 19:03:51,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 19:03:51,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 19:03:51,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 19:03:51,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 19:03:51,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 19:03:51,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 19:03:51,994 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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;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=SMALLESTAMONGWIDE;tolerance=0.2;log-additional-information=true;unknown-allowed=true; [2020-10-14 19:03:52,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 19:03:52,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 19:03:52,328 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 19:03:52,330 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 19:03:52,331 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 19:03:52,331 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label21.c [2020-10-14 19:03:52,396 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfdff650c/85bb845866964c5dbb876712fcc6b533/FLAGeded24323 [2020-10-14 19:03:53,010 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 19:03:53,011 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label21.c [2020-10-14 19:03:53,027 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfdff650c/85bb845866964c5dbb876712fcc6b533/FLAGeded24323 [2020-10-14 19:03:53,277 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/bfdff650c/85bb845866964c5dbb876712fcc6b533 [2020-10-14 19:03:53,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 19:03:53,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 19:03:53,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 19:03:53,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 19:03:53,297 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 19:03:53,298 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:03:53" (1/1) ... [2020-10-14 19:03:53,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23bccf0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:53, skipping insertion in model container [2020-10-14 19:03:53,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 07:03:53" (1/1) ... [2020-10-14 19:03:53,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 19:03:53,373 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 19:03:53,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:03:53,930 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 19:03:54,038 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 19:03:54,055 INFO L208 MainTranslator]: Completed translation [2020-10-14 19:03:54,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:54 WrapperNode [2020-10-14 19:03:54,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 19:03:54,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 19:03:54,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 19:03:54,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 19:03:54,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:54" (1/1) ... [2020-10-14 19:03:54,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:54" (1/1) ... [2020-10-14 19:03:54,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:54" (1/1) ... [2020-10-14 19:03:54,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:54" (1/1) ... [2020-10-14 19:03:54,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:54" (1/1) ... [2020-10-14 19:03:54,149 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:54" (1/1) ... [2020-10-14 19:03:54,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:54" (1/1) ... [2020-10-14 19:03:54,161 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 19:03:54,161 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 19:03:54,162 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 19:03:54,162 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 19:03:54,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:54" (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 19:03:54,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 19:03:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 19:03:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 19:03:54,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 19:03:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 19:03:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 19:03:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 19:03:54,231 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 19:03:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 19:03:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 19:03:54,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 19:03:55,388 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 19:03:55,389 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 19:03:55,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:03:55 BoogieIcfgContainer [2020-10-14 19:03:55,395 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 19:03:55,397 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 19:03:55,397 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 19:03:55,400 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 19:03:55,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 07:03:53" (1/3) ... [2020-10-14 19:03:55,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e5595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:03:55, skipping insertion in model container [2020-10-14 19:03:55,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 07:03:54" (2/3) ... [2020-10-14 19:03:55,402 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e5595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 07:03:55, skipping insertion in model container [2020-10-14 19:03:55,402 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 07:03:55" (3/3) ... [2020-10-14 19:03:55,404 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label21.c [2020-10-14 19:03:55,414 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 19:03:55,422 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 19:03:55,437 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 19:03:55,465 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 19:03:55,465 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 19:03:55,465 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 19:03:55,466 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 19:03:55,466 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 19:03:55,466 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 19:03:55,466 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 19:03:55,466 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 19:03:55,492 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-14 19:03:55,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2020-10-14 19:03:55,504 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:03:55,505 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, 1, 1] [2020-10-14 19:03:55,506 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:03:55,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:03:55,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1860977577, now seen corresponding path program 1 times [2020-10-14 19:03:55,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:03:55,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [325842089] [2020-10-14 19:03:55,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:03:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:55,900 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:56,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:57,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:57,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 97 [2020-10-14 19:03:57,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:03:57,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1730 [2020-10-14 19:03:57,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:57,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:57,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:03:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:03:57,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 19:03:57,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 19:03:57,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:03:57,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:57,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:03:57,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:03:57,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:03:57,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:03:57,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 19:03:57,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:03:57,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:03:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:03:57,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:03:57,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:03:57,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:03:57,815 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 19:03:57,817 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [325842089] [2020-10-14 19:03:57,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:03:57,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 19:03:57,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353412443] [2020-10-14 19:03:57,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 19:03:57,830 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:03:57,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 19:03:57,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 19:03:57,849 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 4 states. [2020-10-14 19:03:59,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:03:59,781 INFO L93 Difference]: Finished difference Result 582 states and 980 transitions. [2020-10-14 19:03:59,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:03:59,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2020-10-14 19:03:59,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:03:59,801 INFO L225 Difference]: With dead ends: 582 [2020-10-14 19:03:59,801 INFO L226 Difference]: Without dead ends: 286 [2020-10-14 19:03:59,809 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 19:03:59,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-10-14 19:03:59,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 282. [2020-10-14 19:03:59,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-10-14 19:03:59,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 398 transitions. [2020-10-14 19:03:59,890 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 398 transitions. Word has length 89 [2020-10-14 19:03:59,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:03:59,891 INFO L479 AbstractCegarLoop]: Abstraction has 282 states and 398 transitions. [2020-10-14 19:03:59,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 19:03:59,891 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 398 transitions. [2020-10-14 19:03:59,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2020-10-14 19:03:59,897 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:03:59,897 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:03:59,897 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 19:03:59,898 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:03:59,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:03:59,898 INFO L82 PathProgramCache]: Analyzing trace with hash 64410272, now seen corresponding path program 1 times [2020-10-14 19:03:59,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:03:59,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [43378531] [2020-10-14 19:03:59,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:03:59,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:03:59,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:00,143 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:01,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:01,220 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:01,220 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 109 [2020-10-14 19:04:01,221 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:04:01,221 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1299 [2020-10-14 19:04:01,221 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:01,221 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-10-14 19:04:01,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 19:04:01,222 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:01,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:01,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:01,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:01,335 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:01,335 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:01,335 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:01,336 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:04:01,336 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:01,336 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:01,337 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:01,337 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:01,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:01,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:01,361 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:01,370 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:01,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 19:04:01,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:01,371 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:04:01,371 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:01,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:01,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:01,372 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 19:04:01,372 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:01,392 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:04:01,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [43378531] [2020-10-14 19:04:01,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:01,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:04:01,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80652938] [2020-10-14 19:04:01,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:04:01,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:01,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:04:01,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:04:01,397 INFO L87 Difference]: Start difference. First operand 282 states and 398 transitions. Second operand 5 states. [2020-10-14 19:04:02,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:02,560 INFO L93 Difference]: Finished difference Result 836 states and 1204 transitions. [2020-10-14 19:04:02,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:04:02,560 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 99 [2020-10-14 19:04:02,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:02,566 INFO L225 Difference]: With dead ends: 836 [2020-10-14 19:04:02,566 INFO L226 Difference]: Without dead ends: 560 [2020-10-14 19:04:02,568 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 19:04:02,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-10-14 19:04:02,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 556. [2020-10-14 19:04:02,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-10-14 19:04:02,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 742 transitions. [2020-10-14 19:04:02,629 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 742 transitions. Word has length 99 [2020-10-14 19:04:02,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:02,630 INFO L479 AbstractCegarLoop]: Abstraction has 556 states and 742 transitions. [2020-10-14 19:04:02,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:04:02,630 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 742 transitions. [2020-10-14 19:04:02,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-10-14 19:04:02,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:02,642 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-10-14 19:04:02,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 19:04:02,643 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:02,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:02,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1802371290, now seen corresponding path program 1 times [2020-10-14 19:04:02,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:02,644 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416689256] [2020-10-14 19:04:02,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:02,725 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:02,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:03,125 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:05,866 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:05,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 114 [2020-10-14 19:04:05,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:04:05,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3167 [2020-10-14 19:04:05,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:05,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:05,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:05,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 19:04:05,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 19:04:05,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:06,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:06,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:06,025 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:06,028 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:06,028 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:06,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:06,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:04:06,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:06,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:06,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:06,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:06,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:06,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 19:04:06,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:06,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:06,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:06,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:06,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:04:06,066 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:06,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 19:04:06,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:06,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:06,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:06,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:06,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-14 19:04:06,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:06,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:04:06,094 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416689256] [2020-10-14 19:04:06,094 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:06,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:04:06,095 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766956309] [2020-10-14 19:04:06,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:04:06,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:06,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:04:06,097 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:04:06,098 INFO L87 Difference]: Start difference. First operand 556 states and 742 transitions. Second operand 5 states. [2020-10-14 19:04:07,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:07,216 INFO L93 Difference]: Finished difference Result 1658 states and 2264 transitions. [2020-10-14 19:04:07,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:04:07,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2020-10-14 19:04:07,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:07,227 INFO L225 Difference]: With dead ends: 1658 [2020-10-14 19:04:07,227 INFO L226 Difference]: Without dead ends: 1108 [2020-10-14 19:04:07,229 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 19:04:07,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2020-10-14 19:04:07,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 1104. [2020-10-14 19:04:07,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1104 states. [2020-10-14 19:04:07,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1104 states to 1104 states and 1440 transitions. [2020-10-14 19:04:07,278 INFO L78 Accepts]: Start accepts. Automaton has 1104 states and 1440 transitions. Word has length 104 [2020-10-14 19:04:07,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:07,279 INFO L479 AbstractCegarLoop]: Abstraction has 1104 states and 1440 transitions. [2020-10-14 19:04:07,279 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:04:07,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1104 states and 1440 transitions. [2020-10-14 19:04:07,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-10-14 19:04:07,283 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:07,284 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:04:07,284 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 19:04:07,284 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:07,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:07,285 INFO L82 PathProgramCache]: Analyzing trace with hash 2045088171, now seen corresponding path program 1 times [2020-10-14 19:04:07,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:07,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204567364] [2020-10-14 19:04:07,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:07,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:07,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:07,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:07,488 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:10,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:11,654 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:12,318 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:12,319 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 124 [2020-10-14 19:04:12,319 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:04:12,319 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-14 19:04:12,319 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:12,320 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-14 19:04:12,320 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-10-14 19:04:12,320 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:12,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:12,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:12,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:12,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:12,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:12,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:12,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 19:04:12,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:12,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:12,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:12,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:12,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:12,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:12,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:12,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:12,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:12,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:12,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:04:12,478 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:12,478 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:04:12,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:12,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:12,479 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:12,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:12,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:12,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 19:04:12,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:12,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:12,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:12,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:04:12,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:12,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:04:12,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:12,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:12,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 19:04:12,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:12,514 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-14 19:04:12,516 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204567364] [2020-10-14 19:04:12,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:12,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:04:12,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619870484] [2020-10-14 19:04:12,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:04:12,518 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:12,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:04:12,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:04:12,520 INFO L87 Difference]: Start difference. First operand 1104 states and 1440 transitions. Second operand 5 states. [2020-10-14 19:04:13,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:13,706 INFO L93 Difference]: Finished difference Result 3302 states and 4416 transitions. [2020-10-14 19:04:13,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:04:13,707 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-10-14 19:04:13,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:13,720 INFO L225 Difference]: With dead ends: 3302 [2020-10-14 19:04:13,721 INFO L226 Difference]: Without dead ends: 2204 [2020-10-14 19:04:13,724 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 19:04:13,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2020-10-14 19:04:13,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 1930. [2020-10-14 19:04:13,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1930 states. [2020-10-14 19:04:13,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1930 states to 1930 states and 2531 transitions. [2020-10-14 19:04:13,792 INFO L78 Accepts]: Start accepts. Automaton has 1930 states and 2531 transitions. Word has length 112 [2020-10-14 19:04:13,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:13,793 INFO L479 AbstractCegarLoop]: Abstraction has 1930 states and 2531 transitions. [2020-10-14 19:04:13,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:04:13,793 INFO L276 IsEmpty]: Start isEmpty. Operand 1930 states and 2531 transitions. [2020-10-14 19:04:13,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-10-14 19:04:13,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:13,799 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-14 19:04:13,799 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 19:04:13,799 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:13,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:13,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1715524750, now seen corresponding path program 1 times [2020-10-14 19:04:13,800 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:13,800 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [853906760] [2020-10-14 19:04:13,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:13,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:13,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:13,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:13,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:14,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:14,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:18,839 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:18,840 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 139 [2020-10-14 19:04:18,840 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:04:18,840 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 19:04:18,841 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:18,841 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-14 19:04:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 50 [2020-10-14 19:04:18,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 19:04:18,843 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:19,441 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2020-10-14 19:04:19,643 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 51 [2020-10-14 19:04:19,855 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2020-10-14 19:04:20,052 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 46 [2020-10-14 19:04:20,248 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 42 [2020-10-14 19:04:20,416 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 38 [2020-10-14 19:04:20,583 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 34 [2020-10-14 19:04:20,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:20,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:20,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:20,643 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:20,643 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:20,644 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:20,644 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:04:20,644 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:20,644 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:20,645 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:20,645 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:20,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:20,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:20,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:20,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:04:20,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:20,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:04:20,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:20,682 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:20,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:20,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:20,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:20,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 19:04:20,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:20,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:20,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:20,691 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:04:20,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:20,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:04:20,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:20,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:20,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:20,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:20,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:20,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:20,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 19:04:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:20,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:20,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:20,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 19:04:20,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:20,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 19:04:20,714 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:20,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:20,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-14 19:04:20,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:20,888 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-10-14 19:04:20,889 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [853906760] [2020-10-14 19:04:20,889 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:20,889 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-14 19:04:20,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988200215] [2020-10-14 19:04:20,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-14 19:04:20,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:20,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-14 19:04:20,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-14 19:04:20,891 INFO L87 Difference]: Start difference. First operand 1930 states and 2531 transitions. Second operand 13 states. [2020-10-14 19:04:21,383 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-10-14 19:04:21,558 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2020-10-14 19:04:21,935 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 114 [2020-10-14 19:04:22,294 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 111 [2020-10-14 19:04:22,630 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 108 [2020-10-14 19:04:23,121 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 105 [2020-10-14 19:04:23,718 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 100 [2020-10-14 19:04:24,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:24,232 INFO L93 Difference]: Finished difference Result 4006 states and 5378 transitions. [2020-10-14 19:04:24,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-14 19:04:24,234 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 125 [2020-10-14 19:04:24,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:24,249 INFO L225 Difference]: With dead ends: 4006 [2020-10-14 19:04:24,250 INFO L226 Difference]: Without dead ends: 2082 [2020-10-14 19:04:24,257 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-14 19:04:24,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2082 states. [2020-10-14 19:04:24,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2082 to 2007. [2020-10-14 19:04:24,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2007 states. [2020-10-14 19:04:24,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2630 transitions. [2020-10-14 19:04:24,340 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2630 transitions. Word has length 125 [2020-10-14 19:04:24,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:24,341 INFO L479 AbstractCegarLoop]: Abstraction has 2007 states and 2630 transitions. [2020-10-14 19:04:24,341 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-14 19:04:24,341 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2630 transitions. [2020-10-14 19:04:24,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-14 19:04:24,350 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:24,350 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:04:24,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 19:04:24,351 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:24,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:24,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1837248573, now seen corresponding path program 1 times [2020-10-14 19:04:24,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:24,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [752168631] [2020-10-14 19:04:24,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:24,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:24,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:25,117 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:25,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:25,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 19:04:25,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:04:25,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1284 [2020-10-14 19:04:25,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:25,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:25,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:25,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 47 [2020-10-14 19:04:25,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-14 19:04:25,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:25,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:25,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:25,825 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:25,825 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:25,825 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:25,825 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:04:25,826 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:25,826 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:25,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:25,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:25,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:25,827 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:25,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:25,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:25,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:25,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:04:25,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:25,850 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:04:25,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:25,850 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:25,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:25,851 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:25,851 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:25,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 19:04:25,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:25,864 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:25,880 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:25,880 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-14 19:04:25,880 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:25,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 19:04:25,881 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:25,881 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:25,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:25,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:25,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-14 19:04:25,882 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:25,979 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-14 19:04:25,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [752168631] [2020-10-14 19:04:25,983 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:25,983 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 19:04:25,983 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401609442] [2020-10-14 19:04:25,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 19:04:25,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:25,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 19:04:25,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 19:04:25,985 INFO L87 Difference]: Start difference. First operand 2007 states and 2630 transitions. Second operand 6 states. [2020-10-14 19:04:27,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:27,287 INFO L93 Difference]: Finished difference Result 4091 states and 5436 transitions. [2020-10-14 19:04:27,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:04:27,288 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2020-10-14 19:04:27,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:27,300 INFO L225 Difference]: With dead ends: 4091 [2020-10-14 19:04:27,300 INFO L226 Difference]: Without dead ends: 2011 [2020-10-14 19:04:27,304 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:04:27,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2020-10-14 19:04:27,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 2007. [2020-10-14 19:04:27,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2007 states. [2020-10-14 19:04:27,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2007 states to 2007 states and 2626 transitions. [2020-10-14 19:04:27,361 INFO L78 Accepts]: Start accepts. Automaton has 2007 states and 2626 transitions. Word has length 124 [2020-10-14 19:04:27,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:27,361 INFO L479 AbstractCegarLoop]: Abstraction has 2007 states and 2626 transitions. [2020-10-14 19:04:27,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 19:04:27,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2007 states and 2626 transitions. [2020-10-14 19:04:27,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-14 19:04:27,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:27,368 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:04:27,368 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 19:04:27,369 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:27,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:27,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1236322884, now seen corresponding path program 1 times [2020-10-14 19:04:27,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:27,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1873761532] [2020-10-14 19:04:27,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:27,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:27,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:27,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:27,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:28,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:28,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:32,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:32,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 19:04:32,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 19:04:32,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5021 [2020-10-14 19:04:32,418 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:32,418 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:32,418 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 20 [2020-10-14 19:04:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 35 [2020-10-14 19:04:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-14 19:04:32,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-14 19:04:33,140 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2020-10-14 19:04:33,439 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 57 [2020-10-14 19:04:33,644 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 49 [2020-10-14 19:04:33,897 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 52 [2020-10-14 19:04:34,255 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 50 [2020-10-14 19:04:34,540 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 54 [2020-10-14 19:04:34,870 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2020-10-14 19:04:35,204 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 48 [2020-10-14 19:04:35,504 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 44 [2020-10-14 19:04:35,758 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 44 [2020-10-14 19:04:35,934 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 32 [2020-10-14 19:04:36,157 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 35 [2020-10-14 19:04:36,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:36,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:36,224 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:36,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:36,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:36,225 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:04:36,225 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:36,225 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:36,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:36,226 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:36,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:36,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:36,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:36,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:36,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:36,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-14 19:04:36,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:36,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:04:36,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:36,273 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:36,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:36,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:36,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:36,274 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:36,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-14 19:04:36,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:36,280 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:36,284 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:36,285 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:04:36,285 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:36,285 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 19:04:36,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:36,286 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:36,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:36,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:36,286 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-14 19:04:36,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:36,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 19:04:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:36,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:36,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:36,385 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 19:04:36,385 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:36,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-14 19:04:36,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:36,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:36,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:36,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:04:36,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 51 [2020-10-14 19:04:36,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:36,741 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 37 proven. 48 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-14 19:04:36,741 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1873761532] [2020-10-14 19:04:36,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:36,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-10-14 19:04:36,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230048795] [2020-10-14 19:04:36,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-14 19:04:36,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:36,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-14 19:04:36,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=282, Unknown=0, NotChecked=0, Total=380 [2020-10-14 19:04:36,749 INFO L87 Difference]: Start difference. First operand 2007 states and 2626 transitions. Second operand 20 states. [2020-10-14 19:04:37,207 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-10-14 19:04:37,674 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118 [2020-10-14 19:04:38,106 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 113 [2020-10-14 19:04:38,485 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 114 [2020-10-14 19:04:38,992 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 111 [2020-10-14 19:04:39,385 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 116 [2020-10-14 19:04:39,921 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2020-10-14 19:04:40,250 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2020-10-14 19:04:40,811 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 110 [2020-10-14 19:04:41,141 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 107 [2020-10-14 19:04:41,601 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 108 [2020-10-14 19:04:41,882 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 99 [2020-10-14 19:04:42,197 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 100 [2020-10-14 19:04:42,730 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 67 [2020-10-14 19:04:42,999 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2020-10-14 19:04:44,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:44,073 INFO L93 Difference]: Finished difference Result 4354 states and 5868 transitions. [2020-10-14 19:04:44,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-10-14 19:04:44,074 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 162 [2020-10-14 19:04:44,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:44,085 INFO L225 Difference]: With dead ends: 4354 [2020-10-14 19:04:44,086 INFO L226 Difference]: Without dead ends: 2353 [2020-10-14 19:04:44,095 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 412 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=557, Invalid=1335, Unknown=0, NotChecked=0, Total=1892 [2020-10-14 19:04:44,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2353 states. [2020-10-14 19:04:44,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2353 to 2309. [2020-10-14 19:04:44,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2309 states. [2020-10-14 19:04:44,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 2969 transitions. [2020-10-14 19:04:44,182 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 2969 transitions. Word has length 162 [2020-10-14 19:04:44,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:44,183 INFO L479 AbstractCegarLoop]: Abstraction has 2309 states and 2969 transitions. [2020-10-14 19:04:44,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-14 19:04:44,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 2969 transitions. [2020-10-14 19:04:44,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-14 19:04:44,190 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:44,190 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:04:44,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 19:04:44,191 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:44,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:44,192 INFO L82 PathProgramCache]: Analyzing trace with hash -2016706982, now seen corresponding path program 1 times [2020-10-14 19:04:44,192 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:44,192 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [240496492] [2020-10-14 19:04:44,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:44,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:44,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:44,383 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:45,056 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:45,056 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-14 19:04:45,056 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:04:45,056 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 825 [2020-10-14 19:04:45,056 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:45,056 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:04:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 19:04:45,057 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-10-14 19:04:45,057 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:45,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:45,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:45,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:45,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:45,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:45,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:45,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:04:45,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:45,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:45,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:45,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:45,125 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 19:04:45,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:45,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:45,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:45,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:45,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:45,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 19:04:45,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:45,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-14 19:04:45,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:45,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:45,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:45,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:04:45,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 19:04:45,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:45,289 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 19:04:45,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [240496492] [2020-10-14 19:04:45,290 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 19:04:45,290 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-14 19:04:45,290 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363946965] [2020-10-14 19:04:45,291 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:04:45,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:45,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:04:45,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:04:45,291 INFO L87 Difference]: Start difference. First operand 2309 states and 2969 transitions. Second operand 7 states. [2020-10-14 19:04:46,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:46,687 INFO L93 Difference]: Finished difference Result 5216 states and 6843 transitions. [2020-10-14 19:04:46,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:04:46,688 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 162 [2020-10-14 19:04:46,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:46,702 INFO L225 Difference]: With dead ends: 5216 [2020-10-14 19:04:46,702 INFO L226 Difference]: Without dead ends: 2913 [2020-10-14 19:04:46,709 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 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 19:04:46,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2913 states. [2020-10-14 19:04:46,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2913 to 2883. [2020-10-14 19:04:46,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2883 states. [2020-10-14 19:04:46,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 3618 transitions. [2020-10-14 19:04:46,784 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 3618 transitions. Word has length 162 [2020-10-14 19:04:46,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:46,784 INFO L479 AbstractCegarLoop]: Abstraction has 2883 states and 3618 transitions. [2020-10-14 19:04:46,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:04:46,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 3618 transitions. [2020-10-14 19:04:46,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-14 19:04:46,794 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:46,794 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:04:46,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 19:04:46,794 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:46,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:46,795 INFO L82 PathProgramCache]: Analyzing trace with hash 946028807, now seen corresponding path program 1 times [2020-10-14 19:04:46,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:46,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [204045634] [2020-10-14 19:04:46,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:46,847 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:46,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:47,078 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:50,366 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:50,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-14 19:04:50,367 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:04:50,367 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3538 [2020-10-14 19:04:50,367 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:50,367 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:50,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:50,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 19:04:50,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 19:04:50,368 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:50,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:50,438 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:50,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:50,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:50,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:50,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:04:50,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:50,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:50,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:50,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:50,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:50,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:50,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:50,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:50,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:50,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:04:50,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:50,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 19:04:50,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:50,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:50,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:50,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:50,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 19:04:50,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:50,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 19:04:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:50,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:50,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:50,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 19:04:50,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:50,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 127 [2020-10-14 19:04:50,650 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:50,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:50,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:04:50,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:04:50,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 19:04:50,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:04:50,825 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 130 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 19:04:50,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [204045634] [2020-10-14 19:04:50,826 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:50,826 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:04:50,827 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821056569] [2020-10-14 19:04:50,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:04:50,828 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:50,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:04:50,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:04:50,829 INFO L87 Difference]: Start difference. First operand 2883 states and 3618 transitions. Second operand 7 states. [2020-10-14 19:04:52,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:52,725 INFO L93 Difference]: Finished difference Result 6318 states and 7949 transitions. [2020-10-14 19:04:52,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:04:52,726 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-10-14 19:04:52,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:52,750 INFO L225 Difference]: With dead ends: 6318 [2020-10-14 19:04:52,750 INFO L226 Difference]: Without dead ends: 3441 [2020-10-14 19:04:52,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-14 19:04:52,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2020-10-14 19:04:52,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 3437. [2020-10-14 19:04:52,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3437 states. [2020-10-14 19:04:52,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3437 states to 3437 states and 4248 transitions. [2020-10-14 19:04:52,861 INFO L78 Accepts]: Start accepts. Automaton has 3437 states and 4248 transitions. Word has length 195 [2020-10-14 19:04:52,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:52,862 INFO L479 AbstractCegarLoop]: Abstraction has 3437 states and 4248 transitions. [2020-10-14 19:04:52,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:04:52,862 INFO L276 IsEmpty]: Start isEmpty. Operand 3437 states and 4248 transitions. [2020-10-14 19:04:52,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-10-14 19:04:52,874 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:52,874 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-10-14 19:04:52,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 19:04:52,875 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:52,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:52,875 INFO L82 PathProgramCache]: Analyzing trace with hash -974671727, now seen corresponding path program 1 times [2020-10-14 19:04:52,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:52,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [80484549] [2020-10-14 19:04:52,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:52,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:52,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:53,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:53,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:55,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:55,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:55,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:55,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:56,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:57,915 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:57,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 215 [2020-10-14 19:04:57,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 19:04:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5011 [2020-10-14 19:04:57,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:57,916 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:04:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 74 [2020-10-14 19:04:57,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 140 [2020-10-14 19:04:57,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:58,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:04:58,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:58,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:58,007 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:58,008 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:04:58,008 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:58,008 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:04:58,008 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:58,009 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:58,009 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:58,009 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:58,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:04:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:58,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:58,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:58,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 19:04:58,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:58,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:04:58,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:58,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:58,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:58,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:58,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 19:04:58,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:58,037 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:58,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:58,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:04:58,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:58,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:04:58,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:58,045 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:04:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:58,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:04:58,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:58,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 19:04:58,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:58,054 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:58,061 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:58,061 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 19:04:58,061 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:04:58,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 19:04:58,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:58,061 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:58,062 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 19:04:58,062 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:58,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-14 19:04:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:58,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:58,104 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:58,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:04:58,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 19:04:58,133 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:04:58,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-10-14 19:04:58,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:04:58,134 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:04:58,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:04:58,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:04:58,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-14 19:04:58,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:04:58,182 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 112 proven. 4 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-10-14 19:04:58,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [80484549] [2020-10-14 19:04:58,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:04:58,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 19:04:58,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249115049] [2020-10-14 19:04:58,185 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 19:04:58,186 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:04:58,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 19:04:58,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 19:04:58,186 INFO L87 Difference]: Start difference. First operand 3437 states and 4248 transitions. Second operand 5 states. [2020-10-14 19:04:59,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:04:59,282 INFO L93 Difference]: Finished difference Result 7412 states and 9253 transitions. [2020-10-14 19:04:59,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 19:04:59,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 199 [2020-10-14 19:04:59,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:04:59,301 INFO L225 Difference]: With dead ends: 7412 [2020-10-14 19:04:59,301 INFO L226 Difference]: Without dead ends: 3981 [2020-10-14 19:04:59,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 4 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 19:04:59,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3981 states. [2020-10-14 19:04:59,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3981 to 3707. [2020-10-14 19:04:59,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3707 states. [2020-10-14 19:04:59,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3707 states to 3707 states and 4602 transitions. [2020-10-14 19:04:59,408 INFO L78 Accepts]: Start accepts. Automaton has 3707 states and 4602 transitions. Word has length 199 [2020-10-14 19:04:59,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:04:59,408 INFO L479 AbstractCegarLoop]: Abstraction has 3707 states and 4602 transitions. [2020-10-14 19:04:59,408 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 19:04:59,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3707 states and 4602 transitions. [2020-10-14 19:04:59,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-10-14 19:04:59,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:04:59,421 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:04:59,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 19:04:59,422 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:04:59,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:04:59,422 INFO L82 PathProgramCache]: Analyzing trace with hash -605806062, now seen corresponding path program 1 times [2020-10-14 19:04:59,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:04:59,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [216889934] [2020-10-14 19:04:59,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:04:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:04:59,506 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:59,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:04:59,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:03,750 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:03,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 225 [2020-10-14 19:05:03,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 19:05:03,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4277 [2020-10-14 19:05:03,751 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:03,751 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-14 19:05:03,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 19:05:03,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:03,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:03,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:03,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:03,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:03,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:03,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:03,857 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:05:03,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:03,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:03,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:03,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:03,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 19:05:03,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:03,889 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:03,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:03,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:05:03,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:03,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:05:03,900 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:03,900 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:03,900 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:03,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:03,901 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:03,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 19:05:03,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:03,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:03,928 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:03,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 19:05:03,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:03,929 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 19:05:03,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:03,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:03,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:03,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:03,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 19:05:03,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:03,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 19:05:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:03,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:04,067 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:04,067 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 19:05:04,067 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:04,067 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 19:05:04,067 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:04,068 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:04,068 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 19:05:04,068 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:04,160 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 161 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-14 19:05:04,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [216889934] [2020-10-14 19:05:04,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:04,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:05:04,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301772658] [2020-10-14 19:05:04,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:04,161 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:04,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:04,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:04,162 INFO L87 Difference]: Start difference. First operand 3707 states and 4602 transitions. Second operand 7 states. [2020-10-14 19:05:05,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:05,627 INFO L93 Difference]: Finished difference Result 7430 states and 9251 transitions. [2020-10-14 19:05:05,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:05:05,628 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 211 [2020-10-14 19:05:05,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:05,644 INFO L225 Difference]: With dead ends: 7430 [2020-10-14 19:05:05,644 INFO L226 Difference]: Without dead ends: 3729 [2020-10-14 19:05:05,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-14 19:05:05,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3729 states. [2020-10-14 19:05:05,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3729 to 3717. [2020-10-14 19:05:05,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3717 states. [2020-10-14 19:05:05,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3717 states to 3717 states and 4589 transitions. [2020-10-14 19:05:05,739 INFO L78 Accepts]: Start accepts. Automaton has 3717 states and 4589 transitions. Word has length 211 [2020-10-14 19:05:05,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:05,740 INFO L479 AbstractCegarLoop]: Abstraction has 3717 states and 4589 transitions. [2020-10-14 19:05:05,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:05,740 INFO L276 IsEmpty]: Start isEmpty. Operand 3717 states and 4589 transitions. [2020-10-14 19:05:05,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-10-14 19:05:05,750 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:05,750 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 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] [2020-10-14 19:05:05,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 19:05:05,751 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:05,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:05,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1624397047, now seen corresponding path program 1 times [2020-10-14 19:05:05,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:05,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333555061] [2020-10-14 19:05:05,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:05,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:05,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:06,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:06,217 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:10,801 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:10,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-14 19:05:10,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 19:05:10,802 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-10-14 19:05:10,802 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:10,802 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:10,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 19:05:10,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 61 [2020-10-14 19:05:10,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-10-14 19:05:10,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:10,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:10,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:10,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:10,932 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:10,932 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:10,933 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:10,933 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 19:05:10,933 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:10,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:10,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:10,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:10,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:10,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:10,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:10,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:10,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:10,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:05:10,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:10,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 19:05:10,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:10,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:10,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:10,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:10,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:10,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:10,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 19:05:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:10,970 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:10,978 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:10,978 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 19:05:10,978 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:10,978 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 19:05:10,978 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:10,978 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:10,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:10,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:10,979 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-14 19:05:10,979 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:10,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-10-14 19:05:10,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:10,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:10,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:11,002 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:11,002 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 19:05:11,003 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:11,003 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 19:05:11,003 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:11,003 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:11,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:11,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:11,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 19:05:11,004 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:11,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-10-14 19:05:11,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:11,041 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:11,094 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:11,094 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 19:05:11,094 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:11,094 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 19:05:11,094 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:11,094 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:11,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:11,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:11,095 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 19:05:11,095 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:11,194 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 193 proven. 10 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-14 19:05:11,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333555061] [2020-10-14 19:05:11,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:11,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 19:05:11,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930911814] [2020-10-14 19:05:11,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 19:05:11,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:11,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 19:05:11,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 19:05:11,196 INFO L87 Difference]: Start difference. First operand 3717 states and 4589 transitions. Second operand 8 states. [2020-10-14 19:05:12,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:12,536 INFO L93 Difference]: Finished difference Result 8139 states and 10054 transitions. [2020-10-14 19:05:12,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:05:12,537 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 224 [2020-10-14 19:05:12,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:12,565 INFO L225 Difference]: With dead ends: 8139 [2020-10-14 19:05:12,566 INFO L226 Difference]: Without dead ends: 4428 [2020-10-14 19:05:12,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:05:12,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4428 states. [2020-10-14 19:05:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4428 to 4277. [2020-10-14 19:05:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4277 states. [2020-10-14 19:05:12,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4277 states to 4277 states and 5109 transitions. [2020-10-14 19:05:12,684 INFO L78 Accepts]: Start accepts. Automaton has 4277 states and 5109 transitions. Word has length 224 [2020-10-14 19:05:12,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:12,685 INFO L479 AbstractCegarLoop]: Abstraction has 4277 states and 5109 transitions. [2020-10-14 19:05:12,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 19:05:12,685 INFO L276 IsEmpty]: Start isEmpty. Operand 4277 states and 5109 transitions. [2020-10-14 19:05:12,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-14 19:05:12,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:12,698 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:05:12,698 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 19:05:12,698 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:12,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:12,699 INFO L82 PathProgramCache]: Analyzing trace with hash -316188529, now seen corresponding path program 1 times [2020-10-14 19:05:12,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:12,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1199348440] [2020-10-14 19:05:12,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:12,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:12,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:12,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:14,267 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:14,268 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 261 [2020-10-14 19:05:14,268 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:14,268 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1519 [2020-10-14 19:05:14,268 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:14,269 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:14,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:14,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 19:05:14,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 19:05:14,269 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:14,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:14,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:14,332 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:14,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:14,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:14,333 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:05:14,333 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:14,333 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:14,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:14,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:14,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:14,354 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:14,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:14,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 19:05:14,363 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:14,363 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 19:05:14,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:14,363 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:14,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 19:05:14,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:14,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-10-14 19:05:14,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:14,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:14,416 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:14,416 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 19:05:14,416 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:14,416 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 19:05:14,416 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:14,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:14,417 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 19:05:14,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:14,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-10-14 19:05:14,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:14,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:14,456 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:14,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 19:05:14,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:14,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:05:14,457 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:14,457 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 19:05:14,457 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:14,457 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:14,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-14 19:05:14,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:14,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:14,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:14,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 19:05:14,492 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:14,492 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 19:05:14,492 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:14,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:14,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:14,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 19:05:14,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:14,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:14,534 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 168 proven. 60 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-10-14 19:05:14,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1199348440] [2020-10-14 19:05:14,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:14,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:05:14,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582207405] [2020-10-14 19:05:14,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:14,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:14,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:14,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:14,536 INFO L87 Difference]: Start difference. First operand 4277 states and 5109 transitions. Second operand 7 states. [2020-10-14 19:05:15,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:15,993 INFO L93 Difference]: Finished difference Result 8560 states and 10242 transitions. [2020-10-14 19:05:15,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 19:05:15,994 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 245 [2020-10-14 19:05:15,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:16,006 INFO L225 Difference]: With dead ends: 8560 [2020-10-14 19:05:16,007 INFO L226 Difference]: Without dead ends: 4289 [2020-10-14 19:05:16,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-14 19:05:16,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4289 states. [2020-10-14 19:05:16,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4289 to 4142. [2020-10-14 19:05:16,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4142 states. [2020-10-14 19:05:16,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4142 states to 4142 states and 4903 transitions. [2020-10-14 19:05:16,104 INFO L78 Accepts]: Start accepts. Automaton has 4142 states and 4903 transitions. Word has length 245 [2020-10-14 19:05:16,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:16,104 INFO L479 AbstractCegarLoop]: Abstraction has 4142 states and 4903 transitions. [2020-10-14 19:05:16,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:16,104 INFO L276 IsEmpty]: Start isEmpty. Operand 4142 states and 4903 transitions. [2020-10-14 19:05:16,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2020-10-14 19:05:16,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:16,117 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:05:16,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 19:05:16,118 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:16,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:16,118 INFO L82 PathProgramCache]: Analyzing trace with hash 332771251, now seen corresponding path program 1 times [2020-10-14 19:05:16,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:16,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682873182] [2020-10-14 19:05:16,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:16,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:16,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:16,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:17,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:17,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 275 [2020-10-14 19:05:17,448 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 19:05:17,448 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1285 [2020-10-14 19:05:17,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:17,448 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 19:05:17,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-14 19:05:17,449 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:17,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:17,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:17,524 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:17,527 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:17,527 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:17,527 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:17,527 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 19:05:17,527 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:17,527 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:17,528 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:17,528 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:17,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:17,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:17,576 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:17,576 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-14 19:05:17,576 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:17,576 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-14 19:05:17,576 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:17,576 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:17,576 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:17,577 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-14 19:05:17,577 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:17,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-14 19:05:17,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:17,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:17,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:17,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-14 19:05:17,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:17,642 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 19:05:17,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:17,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:17,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 52 [2020-10-14 19:05:17,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:17,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2020-10-14 19:05:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:17,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:17,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:17,679 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-14 19:05:17,679 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:17,679 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 19:05:17,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:17,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:17,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:17,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 11 [2020-10-14 19:05:17,680 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:17,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:17,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-10-14 19:05:17,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:17,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:17,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:17,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 19:05:17,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:17,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 19:05:17,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:17,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:17,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:17,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 71 [2020-10-14 19:05:17,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:17,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:17,763 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 196 proven. 60 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-10-14 19:05:17,764 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682873182] [2020-10-14 19:05:17,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:17,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:05:17,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237655729] [2020-10-14 19:05:17,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:17,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:17,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:17,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:17,766 INFO L87 Difference]: Start difference. First operand 4142 states and 4903 transitions. Second operand 7 states. [2020-10-14 19:05:19,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:19,635 INFO L93 Difference]: Finished difference Result 9530 states and 11621 transitions. [2020-10-14 19:05:19,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 19:05:19,636 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 259 [2020-10-14 19:05:19,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:19,652 INFO L225 Difference]: With dead ends: 9530 [2020-10-14 19:05:19,652 INFO L226 Difference]: Without dead ends: 5394 [2020-10-14 19:05:19,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 19:05:19,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5394 states. [2020-10-14 19:05:19,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5394 to 4845. [2020-10-14 19:05:19,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4845 states. [2020-10-14 19:05:19,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4845 states to 4845 states and 5550 transitions. [2020-10-14 19:05:19,799 INFO L78 Accepts]: Start accepts. Automaton has 4845 states and 5550 transitions. Word has length 259 [2020-10-14 19:05:19,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:19,800 INFO L479 AbstractCegarLoop]: Abstraction has 4845 states and 5550 transitions. [2020-10-14 19:05:19,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:19,800 INFO L276 IsEmpty]: Start isEmpty. Operand 4845 states and 5550 transitions. [2020-10-14 19:05:19,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-14 19:05:19,813 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:19,814 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:19,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 19:05:19,814 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:19,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:19,814 INFO L82 PathProgramCache]: Analyzing trace with hash 120068915, now seen corresponding path program 1 times [2020-10-14 19:05:19,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:19,815 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023998929] [2020-10-14 19:05:19,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:19,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:20,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:20,151 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 294 [2020-10-14 19:05:20,151 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:20,151 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 276 [2020-10-14 19:05:20,151 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:20,152 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 130 [2020-10-14 19:05:20,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-14 19:05:20,152 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:20,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 19:05:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:20,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:20,222 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:20,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 19:05:20,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:20,223 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-14 19:05:20,223 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:20,223 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:20,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:20,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:20,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:20,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:20,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 19:05:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:20,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:20,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:20,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-14 19:05:20,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:20,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-14 19:05:20,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:20,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:20,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:20,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:20,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:20,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:20,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-14 19:05:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:20,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:20,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:20,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-14 19:05:20,263 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:20,263 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 19:05:20,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:20,263 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:20,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 19:05:20,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:20,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 19:05:20,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:20,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-10-14 19:05:20,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:20,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:20,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:20,303 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 19:05:20,303 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:20,303 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 19:05:20,303 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:20,304 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:20,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 19:05:20,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 19:05:20,304 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 19:05:20,304 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:20,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-10-14 19:05:20,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 19:05:20,329 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 19:05:20,382 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 19:05:20,382 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-14 19:05:20,382 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 19:05:20,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-14 19:05:20,383 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-10-14 19:05:20,383 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.2 [2020-10-14 19:05:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 19:05:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 19:05:20,383 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-10-14 19:05:20,383 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 19:05:20,575 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 294 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-10-14 19:05:20,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023998929] [2020-10-14 19:05:20,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 19:05:20,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 19:05:20,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786794669] [2020-10-14 19:05:20,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 19:05:20,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 19:05:20,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 19:05:20,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 19:05:20,578 INFO L87 Difference]: Start difference. First operand 4845 states and 5550 transitions. Second operand 7 states. [2020-10-14 19:05:22,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 19:05:22,014 INFO L93 Difference]: Finished difference Result 9010 states and 10670 transitions. [2020-10-14 19:05:22,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 19:05:22,014 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 278 [2020-10-14 19:05:22,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 19:05:22,029 INFO L225 Difference]: With dead ends: 9010 [2020-10-14 19:05:22,029 INFO L226 Difference]: Without dead ends: 5140 [2020-10-14 19:05:22,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 19:05:22,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5140 states. [2020-10-14 19:05:22,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5140 to 4851. [2020-10-14 19:05:22,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4851 states. [2020-10-14 19:05:22,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4851 states to 4851 states and 5539 transitions. [2020-10-14 19:05:22,177 INFO L78 Accepts]: Start accepts. Automaton has 4851 states and 5539 transitions. Word has length 278 [2020-10-14 19:05:22,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 19:05:22,178 INFO L479 AbstractCegarLoop]: Abstraction has 4851 states and 5539 transitions. [2020-10-14 19:05:22,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 19:05:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 4851 states and 5539 transitions. [2020-10-14 19:05:22,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-10-14 19:05:22,192 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 19:05:22,193 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 19:05:22,193 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 19:05:22,193 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 19:05:22,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 19:05:22,193 INFO L82 PathProgramCache]: Analyzing trace with hash 185375927, now seen corresponding path program 1 times [2020-10-14 19:05:22,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 19:05:22,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1694372757] [2020-10-14 19:05:22,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 19:05:22,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-14 19:05:22,261 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-14 19:05:22,264 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-14 19:05:22,273 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 19:05:22,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 07:05:22 BoogieIcfgContainer [2020-10-14 19:05:22,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-14 19:05:22,348 INFO L168 Benchmark]: Toolchain (without parser) took 89058.50 ms. Allocated memory was 147.3 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 100.6 MB in the beginning and 749.4 MB in the end (delta: -648.7 MB). Peak memory consumption was 450.2 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:22,348 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-10-14 19:05:22,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 763.56 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 100.2 MB in the beginning and 170.6 MB in the end (delta: -70.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:22,350 INFO L168 Benchmark]: Boogie Preprocessor took 104.31 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 165.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:22,350 INFO L168 Benchmark]: RCFGBuilder took 1234.05 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 165.6 MB in the beginning and 176.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:22,351 INFO L168 Benchmark]: TraceAbstraction took 86949.48 ms. Allocated memory was 237.0 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 176.9 MB in the beginning and 749.4 MB in the end (delta: -572.5 MB). Peak memory consumption was 436.8 MB. Max. memory is 7.1 GB. [2020-10-14 19:05:22,354 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 147.3 MB. Free memory was 120.6 MB in the beginning and 120.2 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 763.56 ms. Allocated memory was 147.3 MB in the beginning and 205.0 MB in the end (delta: 57.7 MB). Free memory was 100.2 MB in the beginning and 170.6 MB in the end (delta: -70.4 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.31 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 165.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1234.05 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 165.6 MB in the beginning and 176.9 MB in the end (delta: -11.3 MB). Peak memory consumption was 79.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 86949.48 ms. Allocated memory was 237.0 MB in the beginning and 1.2 GB in the end (delta: 1.0 GB). Free memory was 176.9 MB in the beginning and 749.4 MB in the end (delta: -572.5 MB). Peak memory consumption was 436.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 425]: 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 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 TRUE ((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))))))) [L383] a20 = 0 [L384] a21 = 1 [L385] a8 = 14 [L386] a17 = 0 [L387] a16 = 5 [L388] a7 = 1 [L389] 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 FALSE !(((((((!(a17==1)&&(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1))) [L421] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==4))&&(a21==1))) [L424] COND TRUE ((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==5))&&(a21==1)) [L425] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 86.8s, OverallIterations: 16, TraceHistogramMax: 5, AutomataDifference: 29.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 448 SDtfs, 6335 SDslu, 560 SDs, 0 SdLazy, 12837 SolverSat, 1511 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 319 GetRequests, 155 SyntacticMatches, 11 SemanticMatches, 153 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 13.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4851occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 15 MinimizatonAttempts, 1865 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 53.6s InterpolantComputationTime, 2877 NumberOfCodeBlocks, 2877 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2573 ConstructedInterpolants, 0 QuantifiedInterpolants, 3154711 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 2 PerfectInterpolantSequences, 1791/1988 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...